In composites a conglomeration produces material properties which are unavailable from individual constituent
materials. The use of petroleum based products as constituents in polymer matrix composite has raised concerns
regarding environmental issue and non-renewability of the resource. Therefore in this work an attempt has been
made to develop a biocomposite material using untreated dupion silk fiber as reinforcement material and vinyl
ester as matrix material with Potato Starch used as filler material by hand layup technique.
The biocomposites were prepared in varying percentage of filler addition (0%, 10%, 20%, and 30%) and
different mechanical tests (tensile, flexure and hardness) were conducted on the samples prepared to the ASTM
standards.
From the results of the experiments conducted on the specimen it can be concluded that the performance of 10%
Starch filler content Biocomposite is satisfactory in all aspects compared to 0%, 20%, and 30% Starch filler
content Biocomposites.
Mechanical Properties of Tere-Phthalic Unsaturated Polyester Resin Reinforced...IOSR Journals
Abstract: The objective of this work is to investigate the mechanical properties of particulate snail shell
reinforced unsaturated polyester composite. 5wt% ground snail shell of particle size 625microns was
introduced to unsaturated polyester matrix to produce a composite. Other specimens were produced at 10, 15,
20, 25 and 30 weight percentages of the particulate filler in unsaturated polyester matrix. Mechanical tests were
conducted on prepared samples of the composite material. The results showed that the flexural strength of the
composite with 20wt% snail shell particulate reinforcement was greatly enhanced and the impact and hardness
properties were greatly improved at 5wt% filler loading. The composite could be considered for applications in
areas where high impact strength is a requirement such as in shipping containers. The 20wt% snail shell
reinforced unsaturated polyester can be used in place of pure polyester for applications where flexibility is of
utmost importance. Keywords: Snail Shell, Unsaturated Polyester, Composite, Mechanical Properties, filler
STUDY ON THE INFLUENCE OF FIBER ORIENTATION ON PALF REINFORCED BISPHENOL COMP...IAEME Publication
The main advantage of a composite material over conventional material like a monolithic metal is the
combination of different properties which are seldom found in the conventional material. In recent years natural fibers
appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and
nonrenewable synthetic fiber. Pineapple leaf fiber (PALF) is one of them that have also good potential as reinforcement
in thermoset composite. The objective of the present work is to investigate the effect of fiber orientation on the mechanical properties of PALF reinforced Bisphenol composite and explores the potential of using PALF as reinforcing
material.
Role of Natural and Synthetic Fillers on Erosive Wear Behavior of Basalt -Epo...IJRES Journal
An investigation was made to evaluate the effect of the incorporation of bio-based jatropha oil cake (JOC), Titanium dioxide (TiO2) and Clay on the erosive wear behavior of Basalt-epoxy (BE) hybrid composites. A Vacuum-Assisted Resin Infusion (VARI) technique was employed to obtain a filled and unfilled B-E composites. The effect of different impact velocities (20 and 40 m/s) and angle of impingement from 300 to 900 on the performance of the wear resistance of the composites were measured. The results of erosive wear losses, angle of impingement, and impact velocity and erosion rate of 3% of TiO2 and JOC filled and unfilled B-E composites are analyzed and discussed. The worn surface features of unfilled and filled B-E composites were examined using Scanning Electron Microscopy (SEM).
Study of properties of banana fiber reinforced compositeseSAT Journals
Abstract Natural fiber composites are nowadays being used in various engineering applications to increase the strength and to optimise the weight and the cost of the product. Various natural fibres such as coir, sisal, jute, coir and banana are used as reinforcement materials. In this paper both treated and untreated banana fiber are taken for the development of the hybrid composite material. The untreated banana fiber is treated by sodium hydroxide to increase the wettability. The untreated banana fiber and sodium hydroxide treated banana fiber are used as reinforcing material for both Epoxy resin matrix and Vinyl ester resin matrix. Coconut shell powder is used along with both untreated and treated banana fiber as a reinforcing material. In this process the banana fiber is treated with 5% of sodium hydroxide for one hour and the specimen is fabricated by hand moulding process. The mould used for fabricating the hybrid composite material is made up of aluminium with a debonding agent applied on the inner side. The banana fiber content is kept constant to 30% of weight fraction of entire composite material. The variation in mechanical properties are studied and analyzed. Here, the tensile strength has calculated by universal testing machine, impact strength has calculated by pendulum impact tester and flexural strength has calculated by universal testing machine with flexural test arrangement of the specimen. Then the treated and untreated specimens are analyzed and compared through Scanning Electron Microscope to study about its adhesion between fiber and resin matrix and surface morphology. Keywords: Natural Fiber Composites, Mechanical Properties, Surface morphology
Mechanical Properties of Tere-Phthalic Unsaturated Polyester Resin Reinforced...IOSR Journals
Abstract: The objective of this work is to investigate the mechanical properties of particulate snail shell
reinforced unsaturated polyester composite. 5wt% ground snail shell of particle size 625microns was
introduced to unsaturated polyester matrix to produce a composite. Other specimens were produced at 10, 15,
20, 25 and 30 weight percentages of the particulate filler in unsaturated polyester matrix. Mechanical tests were
conducted on prepared samples of the composite material. The results showed that the flexural strength of the
composite with 20wt% snail shell particulate reinforcement was greatly enhanced and the impact and hardness
properties were greatly improved at 5wt% filler loading. The composite could be considered for applications in
areas where high impact strength is a requirement such as in shipping containers. The 20wt% snail shell
reinforced unsaturated polyester can be used in place of pure polyester for applications where flexibility is of
utmost importance. Keywords: Snail Shell, Unsaturated Polyester, Composite, Mechanical Properties, filler
STUDY ON THE INFLUENCE OF FIBER ORIENTATION ON PALF REINFORCED BISPHENOL COMP...IAEME Publication
The main advantage of a composite material over conventional material like a monolithic metal is the
combination of different properties which are seldom found in the conventional material. In recent years natural fibers
appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and
nonrenewable synthetic fiber. Pineapple leaf fiber (PALF) is one of them that have also good potential as reinforcement
in thermoset composite. The objective of the present work is to investigate the effect of fiber orientation on the mechanical properties of PALF reinforced Bisphenol composite and explores the potential of using PALF as reinforcing
material.
Role of Natural and Synthetic Fillers on Erosive Wear Behavior of Basalt -Epo...IJRES Journal
An investigation was made to evaluate the effect of the incorporation of bio-based jatropha oil cake (JOC), Titanium dioxide (TiO2) and Clay on the erosive wear behavior of Basalt-epoxy (BE) hybrid composites. A Vacuum-Assisted Resin Infusion (VARI) technique was employed to obtain a filled and unfilled B-E composites. The effect of different impact velocities (20 and 40 m/s) and angle of impingement from 300 to 900 on the performance of the wear resistance of the composites were measured. The results of erosive wear losses, angle of impingement, and impact velocity and erosion rate of 3% of TiO2 and JOC filled and unfilled B-E composites are analyzed and discussed. The worn surface features of unfilled and filled B-E composites were examined using Scanning Electron Microscopy (SEM).
Study of properties of banana fiber reinforced compositeseSAT Journals
Abstract Natural fiber composites are nowadays being used in various engineering applications to increase the strength and to optimise the weight and the cost of the product. Various natural fibres such as coir, sisal, jute, coir and banana are used as reinforcement materials. In this paper both treated and untreated banana fiber are taken for the development of the hybrid composite material. The untreated banana fiber is treated by sodium hydroxide to increase the wettability. The untreated banana fiber and sodium hydroxide treated banana fiber are used as reinforcing material for both Epoxy resin matrix and Vinyl ester resin matrix. Coconut shell powder is used along with both untreated and treated banana fiber as a reinforcing material. In this process the banana fiber is treated with 5% of sodium hydroxide for one hour and the specimen is fabricated by hand moulding process. The mould used for fabricating the hybrid composite material is made up of aluminium with a debonding agent applied on the inner side. The banana fiber content is kept constant to 30% of weight fraction of entire composite material. The variation in mechanical properties are studied and analyzed. Here, the tensile strength has calculated by universal testing machine, impact strength has calculated by pendulum impact tester and flexural strength has calculated by universal testing machine with flexural test arrangement of the specimen. Then the treated and untreated specimens are analyzed and compared through Scanning Electron Microscope to study about its adhesion between fiber and resin matrix and surface morphology. Keywords: Natural Fiber Composites, Mechanical Properties, Surface morphology
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Unsaturated Polyester Resin Reinforced With Chemically Modified Natural FibreIOSR Journals
Abstract: The effects of surface treatment on some mechanical properties of sisal fibre reinforced unsaturated
polyester resin has been investigated. The sisal fibre was extracted by manually beating the sisal leaves with a
smooth edged stick followed by chemical modification of the fibres using alkaline treatment method with NaOH
at different concentrations and time at a constant temperature of 65 oC. The surface morphology and
characteristics of the treated and untreated sisal fibre samples was studied using Scanning Electron Microscope
(SEM). Polymer matrix composite (PMC) using treated and untreated sisal fibre as reinforcement and
unsaturated polyester resin as matrix material was prepared. The composite laminates was cut into different
sizes and shapes for mechanical testing. Universal testing machine (UTM) was used to test the flexural and
tensile test, while Charpy Impact testing machine was used for the impact test. From the results of the
mechanical tests, it was observed that, concentrations of 10% NaOH at (2 & 5 hours), 6 % NaOH at 5 hours
and 2 % NaOH at 5 hours show great improvement of the mechanical performance for tensile, flexural and
impact test respectively than the other various concentrations of NaOH at different time intervals. This shows
that, the extent of surface modification depends on the concentration of NaOH solution and time of treatment.
The changed fibre surface properties observed from SEM images of the treated sisal fibres were responsible for
better adhesion. Keywords: Sisal, Alkali, SEM, Unsaturated polyester, Composite,
Fabrication and Testing of Natural Fiber Reinforced Hybrid Composites Banana/...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
Mechanical Characterization of Bio-Char Made Hybrid CompositeIJERA Editor
Material discoveries and development have always been the cause of the growth and development of a nation
and the need of naturally made materials is the need of hours. Thus this paper takes you to the development of a
hybrid composite made of sisal fiber with epoxy as the matrix intertwined with softwood bio-char. Softwood
chip bio-char, produced by slow pyrolysis, has a porous structure improving its nutrient absorbing capacity,
surface area and thus a potential substituent. Bio-char has an appreciable carbon sequestration value i.e. a carbon
absorbing product. The orientation of sisal fiber are changed and studied in longitudinal and orthogonal
direction indicating superiority of longitudinal fiber orientation .It also addresses the variation in mechanical
characteristic (tensile flexural and impact) with different constituent of the new composite and its position in
material selection charts with a direction for further work.
Characterization of natural fiber reinforced composites bamboo and sisal a re...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Tensile strength of fiber for some type bananas (ambon, kepok, susu)eSAT Journals
Abstract The purpose of this study was to determine the influence of alcohol soaking treatment on the fiber surface in the physical and mechanical properties of banana fibers and to determine the effect of fiber tensile load when mixed with an epoxy resin with a volume fraction in the form of pull. The results obtained from this study was the influence of alcohol soaking treatment on the surface of banana fiber on the physical properties and mechanical properties of banana fiber are not suitable, because it just makes banana fiber strength becomes strong or fragile. The influence of tensile load of fiber when mixed with an epoxy resin with a volume fraction of 50: 50 in the form of pull sufficient effect on the tensile strength of the composite, as it makes the tensile strength of the composite itself to be increased or stronger. Keywords: Key word1, Key word2, Key word3, and Key word4 etc…
CHARACTERIZATION OF BANANA FIBER/PISTACIA VERA SHELL CELLULOSE REINFORCED COM...IAEME Publication
The main objective of the work is to add value to the agricultural residue by fabricating a partially biodegradable composite that shows the best combination of properties. To achieve this, Pistacia Vera shells are opted and cellulose is extracted from it, of both nano and micro sized. Such cellulose is added as filler, to the long banana fibers reinforced polyester composite. Also, this novel material is characterized by testing tensile strength, flexural strength, impact strength and thermal conductivity. Peak Tensile strength for Pistacia Vera shell banana fiber/nanocellulose reinforced composite is found to be 19% higher than banana fiber based composite. Similarly, Flexural, Impact strength and Thermal conductivity results also exhibited good synergism.
Tensile and Flexural Properties of Sisal/Jute Hybrid Natural Fiber CompositesIJMER
During the last two decades using natural fiber as reinforcement in polymers has increased
drastically. The present research work has been carried out to make use of sisal/jute natural fibers. The
aim of this paper is to describe the development and characterization of new set of hybrid natural fiber
composites. It is made by reinforcing sisal/ jute fibers with epoxy resin in matrix by using hand layup
technique. The natural fibers were extracted by retting and combing process manually. Hybrid
composites were prepared using sisal/jute fibers of 0/40, 10/30, 20/20, 30/10, 40/0 weight fraction ratios
while overall fiber weight fraction was fixed as 0.4 weight fraction. The tensile and flexural properties
were carried out using hybrid composite samples. The results indicated that addition of sisal fiber in
jute/epoxy composites up to 50% weight fraction results increasing the mechanical properties
Mechanical Behaviour of Agricultural Residue Reinforced CompositesScientific Review
The increasing awareness and the quest for newer materials have given renewed interest to the development of green composites. This article focuses on the potential use of abundantly available waste agricultural residue for the preparation of composites. The mechanical properties of Rice straw fibers reinforced with Polyester resin, Vinyl ester resin and Isophthalic polyester resin are studied and compared. Hand Layup technique is used to prepare the samples on which flexural and impact studies are made. Samples are made using different volumetric compositions of fiber and resin. The results show that the Vinyl ester resin and Isophthalic resin offer good mechanical properties when compared to the polyester resin. Both these resins show similar behavior with respect fiber loading. The flexural strength decreases with increasing fiber loading for polyester resin and increasing trend is observed for both vinyl ester and isophthalic resin. Impact strength increases for the increase in fiber loading up to a certain limit and then decreases. It can be concluded from this study that the agro-waste materials are attractive reinforcements from the standpoint of their mechanical properties.
Mechanical Properties Of Sisal And Pineapple Fiber Hybrid Composites Reinforc...IJMER
In this study, Work has been carried out to investigated tensile , bending and impact
properties of hybrid composite of material constitutes sisal fiber and less discovered pineapple fiber.
These composites are adhered using epoxy resin cosists HY951 resin and LY551 hardener suitably
mixed in appropriate volume. Hybrid composites were prepared using sisal/pineapple fibers of 100/0,
70/30, 50/50, 30/70, and 0/100 Weight fraction ratios, while overall fiber weight fraction was fixed as
20gram. Here for preparing samples Hand lay up method is used , specimens are prepared , fibers are
arrenged in unidirectional manner and tests are carried out , which shows tensile and bending
strengths. The tensile & compressive test was applied on specimens of 300×50 & thickness varring
from 4-6 mm in dimensions but in different proportions of sisal and pineapple by weight. The test
result shows , the composite made by 50/50 fibers weight fraction of sisal & pineapple fiber has been
shown best impact strenght 47.2 N/mm2 as compare to other constitutes of sisal & pine fibers.this
constitute have good tensile & bending strength & their density is also less than sisal fibers. These
composites can be used in various purposes because of its unique features of recycleability, waste
utilization, environment friendly, bio-degradibility, good strength and a good alternative to plastics.
In present scenario natural fibers have received much attention because of their light weight, nonabrasive, combustible, nontoxic, low cost and biodegradable properties. Among the various natural fibers, banana fiber was focused for its pretreatment conditions for preparing perfect fiber. In previously many researchers have found various fibers have been pretreated and they obtain its properties and its applications. In this project banana fiber has been taken as natural fiber and it was pretreated and its properties after pretreatment were obtained. The pretreatment was alkali, sodium hydroxide, potassium permanganate treatment, and bleaching was carried out. Then the composite specimen boards were fabricated by various pretreatment banana fiber, polyethylene and matrix. It undergone to mechanical testing, tensile test, hardness test and also SEM analysis was carried out to check their microstructure. The perfect fiber was found by the obtained results from their properties and bonding nature.
EVALUATION OF MECHANICAL PROPERTY ON PALM/COIR BASED POLYMER MATRIX COMPOSITESmsejjournal
Now day’s natural fibres as reinforcement have received more attention from the research community all
over the world in preparing polymer composites. These natural fibres have lot of advantages over synthetic
fibres. In this paper two natural fibers palm and coir reinforced composites were fabricated using compression moulding method which was a new effort and was not done elsewhere. Specimens were cut from
the fabricated composite plates according to the ASTM standards. Universal Testing Machine was used for
testing tensile and flexural strength of the composites. The impact strength of the composites was analyzed
using Impact tester. Further wear and moisture absorption tests were also conducted on the prepared
specimen. The results obtained through experimentation of both composites were compared and presented.
It can be concluded that the developed palm based composite possess superior property and can be recommended for fabrication of light weight high strength automobile parts.
A STUDY ON MECHANICAL PROPERTIES OF TREATED PALM SEED FIBER EPOXY COMPOSITEJournal For Research
Synthetic fibers composite fibers are more widely used because of its great property. Natural fiber epoxy composite is found to be an effective replacement of some kind of synthetic materials. Oil palm seed fiber is chosen as fiber because of its easy availability, less cost compared to other fibers, renewable, environment friendly, non-abrasive, biodegradable and enhanced properties. Palm seed fiber being available easily is also a disposal of fiber from its industries. Being a green composite 0il palm seed fiber epoxy composite was fabricated. In this paper chemical treatment with NaOH and H2O2 and mechanical properties of oil palm seed fiber epoxy composite was studied along with the morphological analysis of SEM images were conducted. Chemical treatments provided better adhesion between the fiber and matrix.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Unsaturated Polyester Resin Reinforced With Chemically Modified Natural FibreIOSR Journals
Abstract: The effects of surface treatment on some mechanical properties of sisal fibre reinforced unsaturated
polyester resin has been investigated. The sisal fibre was extracted by manually beating the sisal leaves with a
smooth edged stick followed by chemical modification of the fibres using alkaline treatment method with NaOH
at different concentrations and time at a constant temperature of 65 oC. The surface morphology and
characteristics of the treated and untreated sisal fibre samples was studied using Scanning Electron Microscope
(SEM). Polymer matrix composite (PMC) using treated and untreated sisal fibre as reinforcement and
unsaturated polyester resin as matrix material was prepared. The composite laminates was cut into different
sizes and shapes for mechanical testing. Universal testing machine (UTM) was used to test the flexural and
tensile test, while Charpy Impact testing machine was used for the impact test. From the results of the
mechanical tests, it was observed that, concentrations of 10% NaOH at (2 & 5 hours), 6 % NaOH at 5 hours
and 2 % NaOH at 5 hours show great improvement of the mechanical performance for tensile, flexural and
impact test respectively than the other various concentrations of NaOH at different time intervals. This shows
that, the extent of surface modification depends on the concentration of NaOH solution and time of treatment.
The changed fibre surface properties observed from SEM images of the treated sisal fibres were responsible for
better adhesion. Keywords: Sisal, Alkali, SEM, Unsaturated polyester, Composite,
Fabrication and Testing of Natural Fiber Reinforced Hybrid Composites Banana/...IJMER
International Journal of Modern Engineering Research (IJMER) is Peer reviewed, online Journal. It serves as an international archival forum of scholarly research related to engineering and science education.
International Journal of Modern Engineering Research (IJMER) covers all the fields of engineering and science: Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Computer Engineering, Agricultural Engineering, Aerospace Engineering, Thermodynamics, Structural Engineering, Control Engineering, Robotics, Mechatronics, Fluid Mechanics, Nanotechnology, Simulators, Web-based Learning, Remote Laboratories, Engineering Design Methods, Education Research, Students' Satisfaction and Motivation, Global Projects, and Assessment…. And many more.
Mechanical Characterization of Bio-Char Made Hybrid CompositeIJERA Editor
Material discoveries and development have always been the cause of the growth and development of a nation
and the need of naturally made materials is the need of hours. Thus this paper takes you to the development of a
hybrid composite made of sisal fiber with epoxy as the matrix intertwined with softwood bio-char. Softwood
chip bio-char, produced by slow pyrolysis, has a porous structure improving its nutrient absorbing capacity,
surface area and thus a potential substituent. Bio-char has an appreciable carbon sequestration value i.e. a carbon
absorbing product. The orientation of sisal fiber are changed and studied in longitudinal and orthogonal
direction indicating superiority of longitudinal fiber orientation .It also addresses the variation in mechanical
characteristic (tensile flexural and impact) with different constituent of the new composite and its position in
material selection charts with a direction for further work.
Characterization of natural fiber reinforced composites bamboo and sisal a re...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Tensile strength of fiber for some type bananas (ambon, kepok, susu)eSAT Journals
Abstract The purpose of this study was to determine the influence of alcohol soaking treatment on the fiber surface in the physical and mechanical properties of banana fibers and to determine the effect of fiber tensile load when mixed with an epoxy resin with a volume fraction in the form of pull. The results obtained from this study was the influence of alcohol soaking treatment on the surface of banana fiber on the physical properties and mechanical properties of banana fiber are not suitable, because it just makes banana fiber strength becomes strong or fragile. The influence of tensile load of fiber when mixed with an epoxy resin with a volume fraction of 50: 50 in the form of pull sufficient effect on the tensile strength of the composite, as it makes the tensile strength of the composite itself to be increased or stronger. Keywords: Key word1, Key word2, Key word3, and Key word4 etc…
CHARACTERIZATION OF BANANA FIBER/PISTACIA VERA SHELL CELLULOSE REINFORCED COM...IAEME Publication
The main objective of the work is to add value to the agricultural residue by fabricating a partially biodegradable composite that shows the best combination of properties. To achieve this, Pistacia Vera shells are opted and cellulose is extracted from it, of both nano and micro sized. Such cellulose is added as filler, to the long banana fibers reinforced polyester composite. Also, this novel material is characterized by testing tensile strength, flexural strength, impact strength and thermal conductivity. Peak Tensile strength for Pistacia Vera shell banana fiber/nanocellulose reinforced composite is found to be 19% higher than banana fiber based composite. Similarly, Flexural, Impact strength and Thermal conductivity results also exhibited good synergism.
Tensile and Flexural Properties of Sisal/Jute Hybrid Natural Fiber CompositesIJMER
During the last two decades using natural fiber as reinforcement in polymers has increased
drastically. The present research work has been carried out to make use of sisal/jute natural fibers. The
aim of this paper is to describe the development and characterization of new set of hybrid natural fiber
composites. It is made by reinforcing sisal/ jute fibers with epoxy resin in matrix by using hand layup
technique. The natural fibers were extracted by retting and combing process manually. Hybrid
composites were prepared using sisal/jute fibers of 0/40, 10/30, 20/20, 30/10, 40/0 weight fraction ratios
while overall fiber weight fraction was fixed as 0.4 weight fraction. The tensile and flexural properties
were carried out using hybrid composite samples. The results indicated that addition of sisal fiber in
jute/epoxy composites up to 50% weight fraction results increasing the mechanical properties
Mechanical Behaviour of Agricultural Residue Reinforced CompositesScientific Review
The increasing awareness and the quest for newer materials have given renewed interest to the development of green composites. This article focuses on the potential use of abundantly available waste agricultural residue for the preparation of composites. The mechanical properties of Rice straw fibers reinforced with Polyester resin, Vinyl ester resin and Isophthalic polyester resin are studied and compared. Hand Layup technique is used to prepare the samples on which flexural and impact studies are made. Samples are made using different volumetric compositions of fiber and resin. The results show that the Vinyl ester resin and Isophthalic resin offer good mechanical properties when compared to the polyester resin. Both these resins show similar behavior with respect fiber loading. The flexural strength decreases with increasing fiber loading for polyester resin and increasing trend is observed for both vinyl ester and isophthalic resin. Impact strength increases for the increase in fiber loading up to a certain limit and then decreases. It can be concluded from this study that the agro-waste materials are attractive reinforcements from the standpoint of their mechanical properties.
Mechanical Properties Of Sisal And Pineapple Fiber Hybrid Composites Reinforc...IJMER
In this study, Work has been carried out to investigated tensile , bending and impact
properties of hybrid composite of material constitutes sisal fiber and less discovered pineapple fiber.
These composites are adhered using epoxy resin cosists HY951 resin and LY551 hardener suitably
mixed in appropriate volume. Hybrid composites were prepared using sisal/pineapple fibers of 100/0,
70/30, 50/50, 30/70, and 0/100 Weight fraction ratios, while overall fiber weight fraction was fixed as
20gram. Here for preparing samples Hand lay up method is used , specimens are prepared , fibers are
arrenged in unidirectional manner and tests are carried out , which shows tensile and bending
strengths. The tensile & compressive test was applied on specimens of 300×50 & thickness varring
from 4-6 mm in dimensions but in different proportions of sisal and pineapple by weight. The test
result shows , the composite made by 50/50 fibers weight fraction of sisal & pineapple fiber has been
shown best impact strenght 47.2 N/mm2 as compare to other constitutes of sisal & pine fibers.this
constitute have good tensile & bending strength & their density is also less than sisal fibers. These
composites can be used in various purposes because of its unique features of recycleability, waste
utilization, environment friendly, bio-degradibility, good strength and a good alternative to plastics.
In present scenario natural fibers have received much attention because of their light weight, nonabrasive, combustible, nontoxic, low cost and biodegradable properties. Among the various natural fibers, banana fiber was focused for its pretreatment conditions for preparing perfect fiber. In previously many researchers have found various fibers have been pretreated and they obtain its properties and its applications. In this project banana fiber has been taken as natural fiber and it was pretreated and its properties after pretreatment were obtained. The pretreatment was alkali, sodium hydroxide, potassium permanganate treatment, and bleaching was carried out. Then the composite specimen boards were fabricated by various pretreatment banana fiber, polyethylene and matrix. It undergone to mechanical testing, tensile test, hardness test and also SEM analysis was carried out to check their microstructure. The perfect fiber was found by the obtained results from their properties and bonding nature.
EVALUATION OF MECHANICAL PROPERTY ON PALM/COIR BASED POLYMER MATRIX COMPOSITESmsejjournal
Now day’s natural fibres as reinforcement have received more attention from the research community all
over the world in preparing polymer composites. These natural fibres have lot of advantages over synthetic
fibres. In this paper two natural fibers palm and coir reinforced composites were fabricated using compression moulding method which was a new effort and was not done elsewhere. Specimens were cut from
the fabricated composite plates according to the ASTM standards. Universal Testing Machine was used for
testing tensile and flexural strength of the composites. The impact strength of the composites was analyzed
using Impact tester. Further wear and moisture absorption tests were also conducted on the prepared
specimen. The results obtained through experimentation of both composites were compared and presented.
It can be concluded that the developed palm based composite possess superior property and can be recommended for fabrication of light weight high strength automobile parts.
A STUDY ON MECHANICAL PROPERTIES OF TREATED PALM SEED FIBER EPOXY COMPOSITEJournal For Research
Synthetic fibers composite fibers are more widely used because of its great property. Natural fiber epoxy composite is found to be an effective replacement of some kind of synthetic materials. Oil palm seed fiber is chosen as fiber because of its easy availability, less cost compared to other fibers, renewable, environment friendly, non-abrasive, biodegradable and enhanced properties. Palm seed fiber being available easily is also a disposal of fiber from its industries. Being a green composite 0il palm seed fiber epoxy composite was fabricated. In this paper chemical treatment with NaOH and H2O2 and mechanical properties of oil palm seed fiber epoxy composite was studied along with the morphological analysis of SEM images were conducted. Chemical treatments provided better adhesion between the fiber and matrix.
Liquid crystal bio-based epoxy coating with enhanced performanceIJERA Editor
Tetrafunctional rosin based epoxy was synthesized and cured with either rosin based hardener or conventional
phenylene diamine to study the feasibility of producing high performance thermosetting polymer from
renewable resource. The chemical structure of the prepared epoxy was confirmed by elemental analysis, FTIR,
1HNMR, UV, total acid number and epoxy equivalent weight. Dynamic mechanical (DMA) and
thermogravimetric (TGA) analyses results indicate that fully biobased epoxy system possesses high glass
transition temperature (Tg), high modulus (G`) and improved thermal stability.
WhatsApp messenger é um aplicativo de celular que corre nos muitas plataformas que permite o usuário comunicar pelas mensagens de escrito http://www.whatsappbaixargratis.com.br
Investigation And Optimization Of EDM Process Of AISI 4140 Alloy Steel Using ...IJERA Editor
The purpose of this research work is to determine the optimized settings of key machining factors like pulse on
time, discharge current and duty cycle for AISI 4140 alloy steel using various tool electrodes. The output
responses will be measured are material removal rate (MRR),surface roughness(SR) and tool wear rate(TWR).
Mathematical models are proposed for the above are L27 orthogonal array. The micro structural changes in the
work piece after machining process will also be examined by the use of SEM.
EFFECT OF FIBER LENGTH ON THE MECHANICAL PROPERTIES OF PALF REINFORCED BISPHE...IAEME Publication
In recent years natural fibers appear to be the outstanding materials which come as the viable and abundant substitute for the expensive and non-renewable synthetic fiber. Natural fibers like sisal, banana, jute, oil palm, kenaf and coir has been used as reinforcement in thermoset composite for applications in consumer goods, furniture, low cost housing and civil structures. Pineapple leaf fiber (PALF) is one of them that have also good potential as reinforcement in thermoset composite. The objective of the present work is to explore the potential of using PALF as reinforcement and investigate the effect of fiber length on mechanical properties of PALF reinforced Bisphenol composite.
Evaluation of mechanical and water absorption behaviour of coir and rice husk...eSAT Journals
Abstract Coconut coir and rice husk are abundantly available in nature with the very low cost, and rice husk is an agricultural waste,
which is thrown away by the industry. The development of natural fiber composites from coconut coir and rice husk powder will
reduce agriculture waste and increases its usable value. Composite specimens were prepared according to the ASTM standards
with three different weight fractions of fiber, filler, and epoxy (5:15:80, 10:10:80, and 15:5:80) and conducted some mechanical
tests such as impact test and hardness test and water absorption behaviour. From the results it was found that, the mechanical
properties of untreated coir fiber and rice husk powder composites are more as compared to treated coir fiber and rice husk
powder composites, but in the case of water absorption property.
Keywords: Rice Husk, Coconut Coir, Natural Composites, Epoxy Composites, Mechanical Properties, Water
Absorption Behaviour
Mechanical Characterization of Biodegradable Linen Fiber CompositesIJMER
The conventional materials like iron, mild steel, cast iron etc are having good mechanical properties. Hence they are widely used in structural engineering applications. These conventional materials have some defects like formation of rust, low weight to strength ratio, high production cost. To
overcome these defects, engineers started fabricating composite materials. Composites exhibit peculiar
properties like different strengths in different directions, rust resistant, high strength to weight ratio, but
they pollute the environment. Now the natural fibre composites are widely used in automobile industry.
The natural fibres and resins are used to fabricate an eco friendly composite material. Lack of resources
and increasing environmental pollution has evoked great interest in the research of materials that are
friendly to our health and environment. Bio polymer composites fabricated from natural fibres is currently
the most promising area in polymer sciences. This is designed to assess the possibility of fibre as
reinforcing material in composites. Epoxy resin was made a stiffened panel to conduct tensile test. In this
paper it is aimed to explain all possible ways to use natural composites in automobile components. The
main advantages of using natural fibers are their degradability and light weight. They are environment
friendly and also increase the fuel economy
Mechanical Characterization of Biodegradable Linen Fiber CompositesIJMER
Abstract: The conventional materials like iron, mild steel, cast iron etc are having good mechanical properties. Hence they are widely used in structural engineering applications. These conventional materials have some defects like formation of rust, low weight to strength ratio, high production cost. To overcome these defects, engineers started fabricating composite materials. Composites exhibit peculiar properties like different strengths in different directions, rust resistant, high strength to weight ratio, but they pollute the environment. Now the natural fibre composites are widely used in automobile industry. The natural fibres and resins are used to fabricate an eco friendly composite material. Lack of resources and increasing environmental pollution has evoked great interest in the research of materials that are
friendly to our health and environment. Bio polymer composites fabricated from natural fibres is currently
the most promising area in polymer sciences. This is designed to assess the possibility of fibre as reinforcing material in composites. Epoxy resin was made a stiffened panel to conduct tensile test. In this paper it is aimed to explain all possible ways to use natural composites in automobile components. The main advantages of using natural fibers are their degradability and light weight. They are environment friendly and also increase the fuel economy
Mechanical properties of rice husk flour reinforced epoxy bio-compositeIJERA Editor
A bio-composite reinforced with rice husk flour in epoxy resin has been developed. The effect of fibre treatment and weight percentage of rice husk on the mechanical properties was studied and compared with wood dust reinforced epoxy composite. It was observed that addition of rice husk as filler is detrimental to almost all the mechanical properties. About 51% and 26.8% decrease in ultimate strength and Young’s Modulus for 40 wt% untreated rice husk reinforcement was observed. The corresponding decrease in flexural strength and flexural modulus was 51%. Similar trend was also observed in hardness and impact strength. However the mechanical properties of rice husk reinforced biocomposites are found to be superior than wood dust reinforced epoxy composite. SEM microscopy was also done to corroborate the results.
Analysis of Composite Material Blended With Thermoplastics and Jute FibreIJERA Editor
Recently natural fibres have been receiving considerable attention as substitutes for synthetic fibre
reinforcements due to their low cost, low density, acceptable specific strength, good thermal insulation
properties, reduced tool wear, reduced thermal and respiratory irritation and renewable resources. The aim of
this work is to develop chemically treated and chemically untreated fibre reinforced composite material with
optimum properties so that it can replace the existing synthetic fibre reinforced composite material for a suitable
application. In this work, polyester resin has been reinforced with jute fabric, so as to develop jute fibre
reinforced plastic (JFRP) with a weight ratio of 10:1:1 Hand lay-up technique was used to manufacture the
composites where Methyl Ethyl Ketone Peroxide and cobalt Naphthalene were used as coupling agent and
accelerator respectively. The thickness of the composite specimen was obtained by laying up layer of fibre and
matrix. The untreated composites have been used and mechanical properties are compared with natural fibre and
jute fibre composite by using the Ansys method.
Investigation of mechanical properties on vinylester based bio composite with...eSAT Journals
Abstract In the present work an attempt has been made to develop Bio-composite Material using raw dupion silk fiber reinforced vinylester matrix in addition with gelatin as filler material with varying percentage using hand lay-up method. The experiments namely tensile, flexural and hardness test were conducted on the standard samples prepared. An appreciable improvement was found in the mechanical properties of the Bio-composite, which can be used for variety of applications in the human bone replacement. The biocomposites were prepared in varying percentage of filler addition (0%, 10%, 20%, and 30%) and different mechanical tests (tensile, flexure and hardness) were conducted on the samples prepared as per ASTM standards. According to literature survey the human femur bone with tensile strength for female is 30.08±7.96MPa. In this work it was found that tensile strength of 30% gelatin filled with Dupion silk fiber reinforced vinylester bio-composite material is 26.86 MPa. Keywords: Implantation, Bio-composite, Dupion Silk Fiber, Gelatin.
Jute, an eco-friendly and affordable fiber grown profusely in India, possess unique combination of properties suited for the manufacture of non-textile products. However, its contribution for technical applications is limited at present. In this research, an effort has been made to investigate the physical and morphological properties of jute fiber when incorporated in epoxy matrix with a view to widen the share of jute fibers for engineered applications. Composite specimens containing nonwoven jute mat and alkali treated short jute fibers with different weight percentages (1, 2 wt%) were made using epoxy resin. The water absorption, thickness swelling (TS) and morphology [scanning electron microscopy (SEM)] tests of the bio composites were performed. As the fiber fraction ratio was increased the values for water absorption (WA) and thickness swell (TS) were found to be increased. The samples reinforced with 2 wt. percent fiber fractions showed maximum WA and TS in both water environments.
Mechanical Behaviour of Agricultural Residue Reinforced CompositesScientific Review SR
The increasing awareness and the quest for newer materials have given renewed interest to the
development of green composites. This article focuses on the potential use of abundantly available waste
agricultural residue for the preparation of composites. The mechanical properties of Rice straw fibers reinforced
with Polyester resin, Vinyl ester resin and Isophthalic polyester resin are studied and compared. Hand Layup
technique is used to prepare the samples on which flexural and impact studies are made. Samples are made using
different volumetric compositions of fiber and resin. The results show that the Vinyl ester resin and Isophthalic
resin offer good mechanical properties when compared to the polyester resin. Both these resins show similar
behavior with respect fiber loading. The flexural strength decreases with increasing fiber loading for polyester
resin and increasing trend is observed for both vinyl ester and isophthalic resin. Impact strength increases for the
increase in fiber loading up to a certain limit and then decreases. It can be concluded from this study that the
agro-waste materials are attractive reinforcements from the standpoint of their mechanical properties.
DEVELOPMENT AND EVALUATION OF SOME OF THE MECHANICAL PROPERTIES OF KENAF/POLY...IAEME Publication
Plant fibers are mainly composed of cellulose, hemicelluloses and lignin. The main advantage of employing natural fibers is that these are biodegradable and renewable and exhibit low cost, low density and high toughness. The proposed work focuses on the development of cellulose composites using Kenaf fibers. The kenaf plant (hibiscus cannabinus) belongs to Malvaceae family. In this work a study on the feasibility of extracting cellulose from plant fiber will be carried out by a chemical procedure, water pre hydrolysis. The composites will be prepared by using cellulose by using hand-layup technique. The composites are characterized by means tensile test based on ASTM standard.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Finite Element Analysis of a Natural Fiber (Maize) Composite BeamIJMER
Natural fiber composite are termed as biocomposites or green composites. These fibers are
green, biogradable, and recyclable and have good properties such as low density and low cost when
compared to synthetic fibers.The present work is investigated on the finite element analysis of the
natural fiber (maize) composite beam, processed by means of hand lay-up method. Composite beam
material is composed of stalk-based fiber of maize and unsaturated polyester resin polymer resin
polymer as matrix with methyl ethyl ketone peroxide (MEKP) as a catalyst and cobalt octoate as a
promoter. The material was modeled and resembled as a structural beam using suitable assumption and
analyzed by means of finite element method using ANSYS software for determining the deflection and
stress properties. Morphological analysis and X-ray diffraction (XRD) analysis for the fiber were
examined by means of scanning electron microscope (SEM) and X-ray diffractometer. From the results,
it has been found that the finite element values are acceptable with proper assumptions, and the prepared
natural fiber composite beam material can be used for structural engineering applications.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdf
A Study on Mechanical Properties of Vinylester Based BioComposite Material with Starch as a Filler Material
1. Mr. Vignesh M et al Int. Journal of Engineering Research and Applications www.ijera.com
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A Study on Mechanical Properties of Vinylester Based Bio- Composite Material with Starch as a Filler Material Mr. Vignesh M*, Dr. H. G. Hanumantharaju**, Mr. Avinash S*** * (Student, dept. of Mechanical Engineering, UVCE, Bangalore, Karnataka, India) ** (Faculty, dept. of Mechanical Engineering, UVCE, Bangalore, Karnataka, India) *** (Student, dept. of Mechanical Engineering, UVCE, Bangalore, Karnataka, India) ABSTRACT In composites a conglomeration produces material properties which are unavailable from individual constituent materials. The use of petroleum based products as constituents in polymer matrix composite has raised concerns regarding environmental issue and non-renewability of the resource. Therefore in this work an attempt has been made to develop a biocomposite material using untreated dupion silk fiber as reinforcement material and vinyl ester as matrix material with Potato Starch used as filler material by hand layup technique. The biocomposites were prepared in varying percentage of filler addition (0%, 10%, 20%, and 30%) and different mechanical tests (tensile, flexure and hardness) were conducted on the samples prepared to the ASTM standards. From the results of the experiments conducted on the specimen it can be concluded that the performance of 10% Starch filler content Biocomposite is satisfactory in all aspects compared to 0%, 20%, and 30% Starch filler content Biocomposites.
Keywords - Implantation, Biocomposite, Dupion Silk Fiber, Potato Starch
I. INTRODUCTION
Engineering Materials are used in medical application to make devices to replace a part or a function of the body. Large numbers of polymeric materials alone and in combination with other materials are becoming increasingly significant in the field of biomaterials. But the use of petroleum based products as constituents in polymer matrix composite has raised concerns regarding environmental issue and non- renewability of the resource. Hence the problems associated with it have initiated the efforts to develop Biocomposites. The biocomposite have one or more constituents that are obtained from natural renewable resources also they may have partial or complete degradation and they do not emit any toxic substance during production and disposal process. By successfully producing biocomposite, we may be able to substitute the conventional petroleum-based plastics in various applications. Metals and bioceramics for biomedical application have yielded limited successes yet substantial mismatch between their properties and bone tissue persist, thereby punctuating the need for tissue engineered products. However, metals commonly induce stress shielding and will eventually experience wear debris, ultimately leading to implant failure [1]. For example, a fractured bone, fixated with a rigid, non-biodegradable stainless steel implant, has a tendency for re-fracture upon removal of the implant. The bone does not carry sufficient
load during the healing process, because the load is carried by the rigid stainless steel [2]. However an implant prepared from biodegradable polymer can be engineered to degrade at a rate that will slowly transfer load to the healing bone [3] as shown in Graph 1. Materials used to achieve bone regeneration are diverse but not limited to metals, ceramics, synthetic polymers, naturally derived polymers, and other biocompatible substances. Success has been found by combining these materials as a strategy to eliminate the disadvantages of an individual material. In the case of materials where starch is used as an additive to a conventional plastic matrix, the polymer in contact with the soil and/or water is attacked by the microbes. The microbes digest the starch, leaving behind a porous, sponge like structure with a high interfacial area, and low structural strength (refer graph 1). When the starch component has been depleted, the polymer matrix begins to be degraded by an enzymatic attack. Each reaction results in the scission of a molecule, slowly reducing the weight of the matrix until the entire material has been digested [4].
RESEARCH ARTICLE OPEN ACCESS
2. Mr. Vignesh M et al Int. Journal of Engineering Research and Applications www.ijera.com
ISSN : 2248-9622, Vol. 4, Issue 11( Version 1), November 2014, pp.42-47
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Graph 1: Mechanical Strength vs Time for Bone and Plate The current work is an effort to utilize the natural renewable resources to develop biocomposite material for biomedical applications such as bone Plates, bone screws material for both internal, external fixations. The dupion silk fiber is a natural fiber, it is used as reinforcement in vinyl ester resin matrix and starch is used as fillers.
II. PREPARATION OF BIOCOMPOSITES
2.1. MATERIALS
Unsaturated vinylester resin was selected as matrix material, Dupion silk fibers as reinforcement and Potato Starch as filler material. Vinyl ester resins having density 1.05 g/cm3 are becoming increasingly important for fibre reinforced composites. They combine the excellent mechanical, chemical and solvent resistance properties of epoxy resins with the properties found in the unsaturated polyester resins. The chemical structure of vinylester resin is shown in Fig.1
Figure 1: chemical structure of a typical vinylester resin Silk Dupioni is a type of silk fiber created with the threads from two different silk worms. When two worms spin their cocoons close together, the fibers get tangled up; these naturally tangled fibers are then used together to make the silk thread. In spite of its delicate appearance, silk is relatively robust; the thread is rougher than regular silk as shown in Fig.2.
Starch is the major carbohydrate reserve in plants, and represents one of the main sources of energy to sustain life. Bread, potato, rice and pasta are examples of the importance of starch in our society. Starch has also been extremely important for centuries in numerous non-food applications, for example, as glue for paper and wood, and as gum for the textile industry. Starch-based biodegradable polymers have been widely investigated in bone tissue engineering. They have good Biocompatibility, Biodegradable and its degradation products are non- toxic. Table 1: material procurement table
Sl. No.
MATERIALS
SUPPLIERS
1
Unsaturated Vinylester Resin
Naphtha Resins & Chemicals (p), Bangalore, India
2
Cobalt napthalate accelerator
3
Methyl Ethyl Ketone peroxide catalyst
4
Dupion Silk Fiber
Silk Exchange Office, Bangalore, India
5
Potato Starch
Polysales, Avenue Road Cross, Bangalore, India
2.2. TECHNIQUE
The laminates were prepared by the hand lay-up technique using the rectangular box. The rectangular box of dimension 19cm×12cm is cleaned with soft brush. A layer of wax is coated on the cleaned surface for the easy removal of the laminate after curing. Weighed quantity of Potato Starch (fillers), Methyl ethyl ketone peroxide (catalyst), Cobalt napthalate (accelerator) are added to Vinyl ester resin taken in the bowl and stirred well for uniform distribution. The weight of constituents to be taken for each specimen is shown in Table 2 and Table 3. The catalyst and accelerator is taken at 1ml each for the 100 g of vinyl ester resin taken. The first layer of Vinyl ester resin mixture is coated on the wax, later Dupion silk fibers shown in fig. 2 are placed in the mould and the resin mixture is poured and distributed uniformly. Same procedure is repeated until the desired thickness is obtained. Alternate layers of resin and Dupion silk fiber are placed.
Figure 2: raw dupion silk fibers
The laminate is cured under light pressure for 2 hrs, followed by curing at room temperature for 24 hours. By following the same procedure as said above bio-composite material having filler
3. Mr. Vignesh M et al Int. Journal of Engineering Research and Applications www.ijera.com
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composition of 0%, 10%, 20% and 30% is prepared. Fig.3 shows the final laminate.
Figure 3: prepared biocomposite laminate The prepared Bio-Composite materials are cut into standard ASTM Dimensions using abrasive water jet machining.
2.3. SAMPLE PREPARATION CALCULATION
Density of vinyl ester resin = 1.05 g/cm3
Density of potato starch = 1.43 g/cm3
Density of silk fiber = 1.33 g/cm3
Volume of the mold, V = 190 x 120 x 3.5 = 79800 mm3 = 79.8 cm3 = 80 cm3
Table 2: Composition of Biocomposite
Samples
% of Resin
% of Fiber
% of Fillers
A
90
10
0
B
80
10
10
C
70
10
20
D
60
10
30
Table 3: Density Calculation of Samples
Mass of Resin (grams)
Mass of Fiber (grams)
Mass of fillers (grams)
Total mass (grams)
Density (g/cm3)
75.6
10.64
0
86.24
1.078
67.2
10.64
11.44
89.28
1.116
58.8
10.64
22.88
92.32
1.154
50.4
10.64
34.32
95.36
1.192
III. EXPERIMENTATION
Mechanical tests such as tensile test, flexural test and hardness tests were conducted on the specimens prepared as per the ASTM standards. The tensile test and flexural test was conducted using J J Lloyd universal testing machine and the hardness test was conducted using Rockwell hardness testing machine. All the tests were carried out at room temperature.
Figure 4: J J Lloyd UTM
3.1. TENSILE TEST
Tensile tests on composite specimens were carried out according to ASTM–D 638 standard to determine tensile strength and to observe the behavior of biocomposites under load.
Figure 5: standard tensile specimen dimensions
3.2. FLEXURAL TEST
Flexural tests on composite specimens were carried out according to ASTM D-790 standard.
Figure 6: standard flexural specimen dimensions
3.3. ROCKWELL HARDNESS TEST
The Rockwell hardness is determined by the depth of the indentation in the test material resulting from application of a given force on a specific indenter.
IV. RESULT AND DISCUSSION
In this section the results obtained from tension, Flexural and Hardness tests are tabulated and represented graphically to analyze the behavior of Biocomposites.
4.1. TENSILE TEST
The peak load and tensile strength obtained from tensile test conducted on the prepared specimens is tabulated in Table 4.
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Table 4: Tensile Strength readings of each trail
SAMPLE
TRIALS
PEAK LOAD (N)
TENSILE STRENGTH (N/mm2)
A
TRIAL 1
313
13.55
TRIAL 2
432
17.36
B
TRIAL 1
809
33.72
TRIAL 2
882
37.70
C
TRIAL 1
792
37.70
TRIAL 2
669
28.60
D
TRIAL 1
658
26.12
TRIAL 2
451
18.33
The prepared tensile test specimens before and after the tensile test experiment is shown in the Fig.7
Figure 7: tensile specimen before and after test
4.1.1. EFFECT OF PEAK LOAD
From Graph 2 it can be observed that at all filler content the highest Peak Load is for 10% filler content bio-composite with a value of 845.5 N.
Graph 2: peak load vs starch filler
4.1.2. EFFECT OF ULTIMATE TENSILE STRENGTH
From Graph 3 it can be observed that at all filler content the highest Ultimate Tensile Strength is for 10% filler content bio-composite with a value of 35.71 Mpa.
Graph 3: tensile strength vs starch filler
4.2. FLEXURAL TEST
The peak load and flexural strength obtained from flexural test conducted on the prepared specimens is tabulated in table 5. Table 5: flexural strength readings of each trail
SAMPLE
TRIALS
PEAK LOAD (N)
FLEXURAL STRENGTH (N/mm2)
A
TRIAL 1
222
37.82
TRIAL 2
217
35.13
B
TRIAL 1
102
19.77
TRIAL 2
93
18.37
C
TRIAL 1
141
30.94
TRIAL 2
71
12.67
D
TRIAL 1
107
17.39
TRIAL 2
108
17.60
The prepared flexural test specimens before and after the flexural test experiment is shown in the fig.8
Figure 8: flexural specimen before and after test
4.2.1. EFFECT OF PEAK LOAD
From Graph 4 it can be observed that at all filler content the highest Peak load is for 0% filler content bio-composite with a value of 219.5N. For other combinations the value of peak load is almost the same.
0
200
400
600
800
1000
0
10
20
30
40
PEAK LOAD (N)
STARCH FILLER %
PEAK LOAD VS STARCH FILLER %
0
10
20
30
40
0
10
20
30
40
TENSILE STRENGTH (N/MM2)
STARCH FILLER %
TENSILE STRENGTH VS STARCH FILLER %
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Graph 4: peak load vs starch filler
4.2.2. EFFECT OF FLEXURAL STRENGTH
From Graph 5 it can be observed that at all filler content the highest Flexural Strength is for 0% filler content bio-composite with a value of 36.475 Mpa.
Graph 5: Flexural Strength vs Starch Filler
4.3. HARDNESS TEST
Hardness is a surface property and is a measure of wear resistance on the surface of the composite. From Graph 6 it can be observed that the hardness value reduces from 0% filler content up to 20% and then increases from that point. The measured hardness number test results are shown in Table 6.
Graph 6: HRBN vs starch filler
Table 6: measured hardness number
SPECIMEN
COMPOSITION
HRBN
A
Vinylester resin + Dupion silk fiber
22.5
B
Vinylester resin + Dupion silk fiber + 10% Starch
20.5
C
Vinylester resin + Dupion silk fiber + 20% Starch
19.5
D
Vinylester resin + Dupion silk fiber + 30% Starch
25
4.4. MORPHOLOGICAL CHARACTERISTICS
Below figures show the micrograph of sample revealing the morphology of Potato Starch Granules and silk fiber reinforcement.
Figure 9: Potato Starch Granules & Silk fibers at 1000 magnification
Figure 10: SEM micrograph of untreated Dupion silk fiber The Micrographs reveal that the bonding between reinforcement and matrix is poor and the starch granules are attracted towards the fibers since both are hydrophilic in nature.
V. CONCLUSION
Bio-composites can supplement and eventually replace petroleum based composite materials in several applications thus offering new agricultural, environmental, manufacturing and consumer benefits.
MECHANICAL TEST
o Tensile test - For all the Bio-composites tested, it is observed that the Peak Load and tensile strength increases up to 10% filler
0
50
100
150
200
250
0
10
20
30
40
PEAK LOAD (N)
STARCH FILLER %
PEAK LOAD VS STARCH FILLER %
0
5
10
15
20
25
30
35
40
0
10
20
30
40
FLEXURAL STRENGTH (Mpa)
STARCH FILLER %
FLEXURAL STRENGTH VS STARCH FILLER %
0
5
10
15
20
25
30
0
10
20
30
40
HRBN
STARCH FILLER %
HRBN VS STARCH FILLER %