A novel flame retardant application technique was developed for cotton apparel fabric using spirocyclic
pentaerythritol di (phosphoryl chloride) (SPDPC), which was further synthesized into bis diglycol spirocyclic
pentaerythritol bisphosphorate (BSPB). The flame retardant agent was then attached to the fabric using a
sol-gel process. The treated fabric was tested on a vertical flame tester which showed very high flame
retardancy as compared to the untreated cotton. TGA analysis exhibited a slow rate of weight loss and
higher ultimate degradation temperature for the FR treated sample. The FR treated sample showed modest
loss in strength while retaining 86.4% of its original strength. The fabric’s appearance did not alter and the
change in stiffness was insignificant as a result of the FR finish.
Synthesis of Epoxidizedcardanol from CNSL (Vietnam) by Glacial Acetic Acid an...ijtsrd
Cardanol obtained by vacuum distillation of cashew nut shell liquid (CNSL) at 220 “ 230 ? and 2 “ 4 mmHg. Epoxidized cardanol (ECD), derived from cardanol was synthesized at 65?, 2% catalyst, DB/AA/ H2O2 :1/0.5/1, stirring rates are 1800 r/m and characterized by FT “ IR, 1H - NMR, 13C “ NMR, TGA. Bach Trong Phuc | Vu Van Hai | Nguyen Thi Hien | Nguyen Thanh Liem"Synthesis of Epoxidizedcardanol from CNSL (Vietnam) by Glacial Acetic Acid and Hydrogen Peroxide" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-6 , October 2017, URL: http://www.ijtsrd.com/papers/ijtsrd5801.pdf http://www.ijtsrd.com/chemistry/polymer-chemistry/5801/synthesis-of-epoxidizedcardanol-from-cnsl-vietnam-by--glacial-acetic-acid-and-hydrogen-peroxide/bach-trong-phuc
Heat stabilizer for copper and other metal mono phthalocyanines as well as fo...Benjamin Lukas
Simple method for preparation of heat stabilizer for copper phthalocyanine pigments for colouration of plastic and rubber is described. The method can be used for heat stabilizer for other mono metal phthalocyanine used in industry as well as for other pigments such as quinocridones.
Characterization of Rubber Seed Shell and Kernel (Hevea brasiliensis) as Raw ...CrimsonPublishersACSR
Characterization of Rubber Seed Shell and Kernel
(Hevea brasiliensis) as Raw Materials for Coliquefaction with Low Rank Coal by Mohd Azlan Mohd Ishak*, Siti Nur Ain Mohd Hassan, Ali H Jawad and Khudzir Ismail in Annals of Chemical Science Research
Synthesis and Antimicrobial Evaluation of Some Nitro-Mannich Bases Derived fr...peertechzpublication
The present work focused on exploring the reactivity of β-nitrostyrene towards Mannich reaction
with different approaches. The synthesized nitro-Mannich bases were tested as antimicrobial agents
that showed high activity against both gram positive and gram negative bacteria.
CONVERSION OF DIMETHYL-NITROBENZENE TO DIMETHY L ANILINE, EFFECT OF SOME PROC...Berklin
The catalytic transfer hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was studied
in the temperature range 343–403 K
o
, pressure range of 4–10 bar H2 and ethanol as solvent using Pd/C
as catalyst above agitation speed 800 rpm. The substrate feed concentration was varied in the range from
0.124 to 0.745 kmol/m3
while catalyst loading was in the range 4–12% (w/w) of dimethyl-nitrobenzene.
Dimethyl-aniline was the only reaction product, generated through the hydrogenation of the Nitro group of
dimethyl-nitrobenzene. The effects of hydrogen partial pressure, catalyst loading, dimethyl-nitrobenzene
concentration and temperature on the reaction conversion have been reported. Near first-order
dependence on dimethyl-nitrobenzene concentration and hydrogen pressure were observed for the initial
rate of dimethyl-nitrobenzene hydrogenation over the 5% Pd/C catalyst. Furthermore, an increase in the
catalytic activity as the reaction temperature, pressure and weight of catalysts was observed. Conventional
Arrhenius behavior was exhibited by catalyst, Pd/C showed activation energies of 614 J/mol.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Creating a Method for Activating Alkaline Bentonite of Navbakhor to Justify t...ijtsrd
This article offers an optimal method of activation for industrial application of alkaline bentonite of Navbakhor and results of its testing. Bayjanov Islam | Kurambaev Sherzod | ?xmedova Shahlo"Creating a Method for Activating Alkaline Bentonite of Navbakhor to Justify the Local Plant Oils" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd17159.pdf http://www.ijtsrd.com/engineering/chemical-engineering/17159/creating-a-method-for-activating-alkaline-bentonite-of-navbakhor-to-justify-the-local-plant-oils/bayjanov-islam
This study was focused on the effects of Sugarcane Bagasse Ash (SCBA) additive on process parameters and compost quality of Co-composting of filter cake and bagasse. Filter cake and bagasse were mixed and sugar cane bagasse ash (SCBA) from a heating power plant of sugar mill. Three compost mixes (M) were obtained: MA with 0%, MB with 10% and MC with 20 wt % of fuel ash. These three different mixes were composted in an experimental composter as three parallel experiments for 3 weeks each. The physical, chemical and biological parameters were monitoring during composting. Significantly, ash additives decreased the total organic carbon; measured by mineralization the breaking down of the organic matter was more rapid in the MC than in the MA, as well as increased the pH during composting. Interesting, the pH decreased was most important in MA and attend 5 for the first week of composting, and then it gradually increased to pH around 8 at the end of the process. The results indicated that ash inhibits the pH drop due to production of organic acids during composting. The acidity of the material was reported as affects the process during the initial phase of rising temperature and quality of the final product. The temperature reached up to 50-55oC during thermophilic phase, the greater temperature was obtained for MC. At the end of composting, the electrical conductivity increased in the MC, especially in MC, but don’t exceed limit (4 mS/cm) for prevent phytotoxicity of the compost. The SCBA additive was likely to speed up the composting process of bagasse with filter cake from 44 days to 33 days.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Thermo catalytic decomposition of methane over Pd/AC and Pd/CB catalysts for ...IJERA Editor
Hydrogen production studies have been carried using Thermo Catalytic Decomposition (TCD) Unit. Thermo catalytic decomposition of methane is an attractive route for COx free production of hydrogen required in fuel cells. Although metal based catalysts produce hydrogen at low temperatures, carbon formed during methane decomposition reaction rapidly deactivates the catalyst. The present work compares the results of 10 wt% Pd supported on commercially available activated carbon and carbon black catalysts (samples coded as Pd10/AC and Pd10/CB respectively) for methane decomposition reaction. Hydrogen has been produced by thermo catalytic decomposition of methane at 1123K and Volume Hourly Space Velocity (VHSV) of 1.62 L/h g on the activity of both the catalysts has been studied. XRD of the above catalysts revealed, moderately crystalline peaks of Pd which may be responsible for the increase in catalytic life and formation of carbon fibers. Also during life studies (850°C and 54 sccm of methane) it has been observed that the activity of carbon black is sustainable for a longer time compared to that of activated carbon.
Here we have discussed about the separation of binary organic mixtures and identification of the functional groups and preparation of solid derivatives.
Synthesis of Epoxidizedcardanol from CNSL (Vietnam) by Glacial Acetic Acid an...ijtsrd
Cardanol obtained by vacuum distillation of cashew nut shell liquid (CNSL) at 220 “ 230 ? and 2 “ 4 mmHg. Epoxidized cardanol (ECD), derived from cardanol was synthesized at 65?, 2% catalyst, DB/AA/ H2O2 :1/0.5/1, stirring rates are 1800 r/m and characterized by FT “ IR, 1H - NMR, 13C “ NMR, TGA. Bach Trong Phuc | Vu Van Hai | Nguyen Thi Hien | Nguyen Thanh Liem"Synthesis of Epoxidizedcardanol from CNSL (Vietnam) by Glacial Acetic Acid and Hydrogen Peroxide" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-6 , October 2017, URL: http://www.ijtsrd.com/papers/ijtsrd5801.pdf http://www.ijtsrd.com/chemistry/polymer-chemistry/5801/synthesis-of-epoxidizedcardanol-from-cnsl-vietnam-by--glacial-acetic-acid-and-hydrogen-peroxide/bach-trong-phuc
Heat stabilizer for copper and other metal mono phthalocyanines as well as fo...Benjamin Lukas
Simple method for preparation of heat stabilizer for copper phthalocyanine pigments for colouration of plastic and rubber is described. The method can be used for heat stabilizer for other mono metal phthalocyanine used in industry as well as for other pigments such as quinocridones.
Characterization of Rubber Seed Shell and Kernel (Hevea brasiliensis) as Raw ...CrimsonPublishersACSR
Characterization of Rubber Seed Shell and Kernel
(Hevea brasiliensis) as Raw Materials for Coliquefaction with Low Rank Coal by Mohd Azlan Mohd Ishak*, Siti Nur Ain Mohd Hassan, Ali H Jawad and Khudzir Ismail in Annals of Chemical Science Research
Synthesis and Antimicrobial Evaluation of Some Nitro-Mannich Bases Derived fr...peertechzpublication
The present work focused on exploring the reactivity of β-nitrostyrene towards Mannich reaction
with different approaches. The synthesized nitro-Mannich bases were tested as antimicrobial agents
that showed high activity against both gram positive and gram negative bacteria.
CONVERSION OF DIMETHYL-NITROBENZENE TO DIMETHY L ANILINE, EFFECT OF SOME PROC...Berklin
The catalytic transfer hydrogenation of dimethyl-nitrobenzene (DN) to Dimethyl-aniline (DA) was studied
in the temperature range 343–403 K
o
, pressure range of 4–10 bar H2 and ethanol as solvent using Pd/C
as catalyst above agitation speed 800 rpm. The substrate feed concentration was varied in the range from
0.124 to 0.745 kmol/m3
while catalyst loading was in the range 4–12% (w/w) of dimethyl-nitrobenzene.
Dimethyl-aniline was the only reaction product, generated through the hydrogenation of the Nitro group of
dimethyl-nitrobenzene. The effects of hydrogen partial pressure, catalyst loading, dimethyl-nitrobenzene
concentration and temperature on the reaction conversion have been reported. Near first-order
dependence on dimethyl-nitrobenzene concentration and hydrogen pressure were observed for the initial
rate of dimethyl-nitrobenzene hydrogenation over the 5% Pd/C catalyst. Furthermore, an increase in the
catalytic activity as the reaction temperature, pressure and weight of catalysts was observed. Conventional
Arrhenius behavior was exhibited by catalyst, Pd/C showed activation energies of 614 J/mol.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Creating a Method for Activating Alkaline Bentonite of Navbakhor to Justify t...ijtsrd
This article offers an optimal method of activation for industrial application of alkaline bentonite of Navbakhor and results of its testing. Bayjanov Islam | Kurambaev Sherzod | ?xmedova Shahlo"Creating a Method for Activating Alkaline Bentonite of Navbakhor to Justify the Local Plant Oils" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-5 , August 2018, URL: http://www.ijtsrd.com/papers/ijtsrd17159.pdf http://www.ijtsrd.com/engineering/chemical-engineering/17159/creating-a-method-for-activating-alkaline-bentonite-of-navbakhor-to-justify-the-local-plant-oils/bayjanov-islam
This study was focused on the effects of Sugarcane Bagasse Ash (SCBA) additive on process parameters and compost quality of Co-composting of filter cake and bagasse. Filter cake and bagasse were mixed and sugar cane bagasse ash (SCBA) from a heating power plant of sugar mill. Three compost mixes (M) were obtained: MA with 0%, MB with 10% and MC with 20 wt % of fuel ash. These three different mixes were composted in an experimental composter as three parallel experiments for 3 weeks each. The physical, chemical and biological parameters were monitoring during composting. Significantly, ash additives decreased the total organic carbon; measured by mineralization the breaking down of the organic matter was more rapid in the MC than in the MA, as well as increased the pH during composting. Interesting, the pH decreased was most important in MA and attend 5 for the first week of composting, and then it gradually increased to pH around 8 at the end of the process. The results indicated that ash inhibits the pH drop due to production of organic acids during composting. The acidity of the material was reported as affects the process during the initial phase of rising temperature and quality of the final product. The temperature reached up to 50-55oC during thermophilic phase, the greater temperature was obtained for MC. At the end of composting, the electrical conductivity increased in the MC, especially in MC, but don’t exceed limit (4 mS/cm) for prevent phytotoxicity of the compost. The SCBA additive was likely to speed up the composting process of bagasse with filter cake from 44 days to 33 days.
International Journal of Computational Engineering Research (IJCER) is dedicated to protecting personal information and will make every reasonable effort to handle collected information appropriately. All information collected, as well as related requests, will be handled as carefully and efficiently as possible in accordance with IJCER standards for integrity and objectivity.
Thermo catalytic decomposition of methane over Pd/AC and Pd/CB catalysts for ...IJERA Editor
Hydrogen production studies have been carried using Thermo Catalytic Decomposition (TCD) Unit. Thermo catalytic decomposition of methane is an attractive route for COx free production of hydrogen required in fuel cells. Although metal based catalysts produce hydrogen at low temperatures, carbon formed during methane decomposition reaction rapidly deactivates the catalyst. The present work compares the results of 10 wt% Pd supported on commercially available activated carbon and carbon black catalysts (samples coded as Pd10/AC and Pd10/CB respectively) for methane decomposition reaction. Hydrogen has been produced by thermo catalytic decomposition of methane at 1123K and Volume Hourly Space Velocity (VHSV) of 1.62 L/h g on the activity of both the catalysts has been studied. XRD of the above catalysts revealed, moderately crystalline peaks of Pd which may be responsible for the increase in catalytic life and formation of carbon fibers. Also during life studies (850°C and 54 sccm of methane) it has been observed that the activity of carbon black is sustainable for a longer time compared to that of activated carbon.
Here we have discussed about the separation of binary organic mixtures and identification of the functional groups and preparation of solid derivatives.
Испанский для начинающих! Фрагмент вебинаровOleg Matveev
Малая часть того, что будет на вебинарах по испанскому языку для начинающих, которые пройдут 23 и 25 мая в 21:00 по мск по этой ссылке:
https://pruffme.com/landing/u1163/gratisA1
Приходите!
The study proposes a new approach to assessing environmental sustainability of buildings. Based on a normalisaition of the building's environmental impacts, the method compares the building's impacts to the actual environmental capacity of our world. This is in contrast to the common approach to building sustainability used by a widerange of certification tools, where building sustaianbility is defined relative to current building practice but not in relation to actual environmental capacity.
Presentación correspondiente a la entrada dedicada a Redes sociales y Comunidades Verticales. El usuario registrado que entra en ellas, transforma su relación, en una experiencia con las marcas.
It’s no secret HubSpot are really big fans of inbound marketing. We’re also obsessed with finding opportunities that will help us to grow quicker across our inbound channels.
In 2015 we started a growth team who were set a challenge, find ways to deliver a greater return from some of our best performing inbound channels.
This presentation will go through how we approached that challenge, the growth team we created and real results from initiatives they’ve implemented.
Antibacterial Finishing Of Cotton FabricsKEVSER CARPET
You can find functionalization of antibacterial agents when applied to cotton fabrics,chloroacetate groups, bioactive carboxylic acid, antibacterial activities in these documents.
I found this documents last year while I was searching some datas about antibacterial finishes on warp kniteed blankets , and now I share with you.
Here is now.
Take it and enjoy.
Good lucks.!
Inherent flame retardant polyester fibre using organophosporous compounds as ...iosrjce
Flame retardant polyester fibres have been produced using various organo-phosphorous compounds
as melt additives. To ensure proper blending at the molecular level and stability at the spinning temperatures,
four organo-phosphorous compounds with melting point lower than that of polyethylene terephthalate (PET)
and boiling point higher than the processing temperature were selected. These compounds are
triphenylphosphine oxide (TPPO), diphenylchloro phosphate (DPCP), phenyl phosphonic acid (PPA), and 2,4-
diterbutylphenyl phosphite (DTBPP). The flame retardant polyester fibres are melt spun at 80 m/min on a
laboratory melt-spinning unit and subsequently drawn-heatset. The limiting oxygen index (LOI) has been found
to be in the range 25-27 at 2.5 -10.0% loading. The effect of additives on mechanical properties of fibres has
been investigated and correlated with the structure of the fibres. The TPPO is found to be most appropriate
additive among the selected compounds for providing adequate flame retardancy with very small loss in
mechanical properties. The, flame retardant PET fibres containing 10% TPPO showed tenacity comparable to
control sample. The study suggests the possibility of developing mechanically strong flame retardant polyester
fibres using a more economical dope additive route
Physicochemical Properties and Proposed Mechanism in the Obtainment of 4-Hidr...IJERA Editor
The mechanism for the poly-condensation event of conjugated polymers with ending 4-hydroxycoumarin has
been proposed. It happened under H2SO4 acidic conditions only using enolic-coumarins without any substituent
at third position. It was studied using Matrix assisted laser desorption/ionization time-of-flight (MALDI-Tof)
mass spectrometry. Besides, some physicochemical properties were analyzed using Thermo-gravimetric (TGA),
X-ray and UV-Vis analysis
Experimental Study of CO2 Gasification of Biomethanation WasteIJERA Editor
Gasification is one of prominent thermochemical processes generally used to convert organic feedstock to combustible syngas (CO and H2). An experimental study of biomass gasification using carbon dioxide as an gasifying medium was carried out in a fixed bed gasifier. The main aim of this study was to determine the effect of temperature on the output syngas. The present study reported the results for producing syngas with CO2 as gasification agent and biomass (rice husk and bio-methanation waste) as raw material. The gasification was performed at 700-900°C respectively and CO2 flow rate was maintained at 0.5 lpm. Maximum syngas production found at high temperature (900°C). The syngas analysis showed higher hydrogen yield at higher temperatures.
to overcome the problem of easily fire catching to fabrics
it will reduce the wealth loss and causing material saving as well as it will cause healthy environment without sudden damage due to fire
chemicals treated are chlorine bromine , and also the bad effects of flame retardants
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
1. Process Overview: Pyrolysis is a thermal degradation process that takes place in the absence of oxygen. The absence of oxygen prevents combustion and allows the organic material to break down without being fully burned.
2. Temperature: Pyrolysis typically occurs at elevated temperatures, often ranging from 300 to 900 degrees Celsius, depending on the specific feedstock and desired products.
3. Feedstock: Pyrolysis can be applied to a wide range of organic materials, including biomass (wood, crop residues), plastics, rubber, and organic waste (such as municipal solid waste).
4. **Products**:
- **Gases**: Pyrolysis produces gases like hydrogen, methane, and carbon monoxide, which can be used as fuel or chemical feedstocks.
- **Liquids**: Liquid products, often called bio-oil when derived from biomass, can be used as a source of biofuels or for chemical synthesis.
- **Char**: The solid residue left behind is known as char. Depending on the feedstock, this char can have various applications, such as as a soil conditioner or for carbon sequestration.
5. **Applications**:
- **Biofuels**: Pyrolysis of biomass can yield biofuels like bio-oil or biochar, which can be used as alternatives to fossil fuels.
- **Waste Management**: Pyrolysis can be used to treat organic waste and reduce its volume while recovering energy or valuable products.
- **Plastic Recycling**: Plastic pyrolysis is used to convert plastic waste into valuable chemicals or fuel.
6. **Types of Pyrolysis**:
- **Fast Pyrolysis**: This process involves very high heating rates and produces a higher proportion of liquid products.
- **Slow Pyrolysis**: Slow pyrolysis takes place at lower temperatures and longer residence times, resulting in a higher proportion of solid char.
- **Intermediate Pyrolysis**: As the name suggests, it falls between fast and slow pyrolysis in terms of temperature and product distribution.
7. **Challenges**: The efficiency and selectivity of pyrolysis can vary depending on the feedstock and process conditions. Controlling the reaction parameters is crucial to obtaining the desired products.
In summary, pyrolysis is a versatile and important process for converting organic materials into valuable products, including biofuels, chemicals, and char, while also addressing waste management and environmental concerns. It plays a significant role in sustainable energy and resource management.
Studies on Nitration of Phenol over Solid Acid Catalyst by Lipika Das, Koushi...crimsonpublisherspps
Phenol was selectively nitrated in liquid phase to produce ortho-nitrophenol using dilute nitric acid (30%) at room temperature in presence of hydrochloric acid treated γ-alumina. Initially Al (NO3) and NH4HCO3 were reacted to prepare Al (OH)3 which on successive calcinations at 550 0C for 5h produce γ-alumina. The γ-alumina was characterized by BET, XRD, SEM and NH3-TPD analysis. The XRD profile confirmed the crystalline structure of the solid acid catalyst γ-alumina. The NH3-TPD analysis showed the development of lewis acidity on the surface of hydrochloric acid treated γ-alumina. The effects of various parameters such as concentration of reactants, types of catalyst, weight of the catalyst, solvent, temperature and time of reaction have been studied. The kinetics of the reaction was also investigated
https://crimsonpublishers.com/pps/fulltext/PPS.000505.php
For more open access journals in Crimson Publishers
Please click on link: https://crimsonpublishers.com
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Please click on: https://crimsonpublishers.com/pps/
Studies on Nitration of Phenol over Solid Acid Catalyst | Crimson PublishersDanesBlake
Phenol was selectively nitrated in liquid phase to produce ortho-nitrophenol using dilute nitric acid (30%) at room temperature in presence of hydrochloric acid treated γ-alumina. Initially Al(NO3) and NH4HCO3 were reacted to prepare Al (OH)3 which on successive calcinations at 550 ᴼC for 5h produce γ-alumina. The γ-alumina was characterized by BET, XRD, SEM and NH3-TPD analysis. The XRD profile confirmed the crystalline structure of the solid acid catalyst γ-alumina. The NH3-TPD analysis showed the development of lewis acidity on the surface of hydrochloric acid treated γ-alumina. The effects of various parameters such as concentration of reactants, types of catalyst, weight of the catalyst, solvent, temperature and time of reaction have been studied. The kinetics of the reaction was also investigated.
Synthesis and Application of Azo Disperse Reactive Dyes derived from p-Aminob...IJERA Editor
Disperse reactive dyes were synthesized by diazotizing p-aminobenzaldehyde and coupling with different substituted pyridones and 2-naphthol. The dyeing performance of the dyes was assessed on polyester, nylon, cotton and wool fabrics. The dyes obtained gave various shades of yellow with good depth, brightness and leveling properties on the fabrics. The dyed fabric showed fairly good to very good light fastness and very good to excellent fastness to washing, hot pressing and rubbing. The dyebath exhaustion on the polyester, nylon, wool and cotton fabrics was found to be very good and fixation on wool was better than on cotton fabric.
If you're scouring the internet for "hdpe granules suppliers delhi", then you are in the right place. Check Out Tirupatipolyplast.co.in. We are India's fastest growing Manufacturers and Suppliers of Plastic Granules. Polyethylene Granules, Polypropylene Granules, PPCP Granules, ABS Granules, Polycarbonate Granules, TPE Granules, and Recycled Plastic Granules are among the plastic raw materials and reprocessed plastic granules that we offer.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Synthesis and Characterization of cyclohexylidene containing novel cardo pol...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
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"Impact of front-end architecture on development cost", Viktor Turskyi
Development of eco friendly flame
1. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
1
DEVELOPMENT OF ECO-FRIENDLY FLAME
RETARDANT FABRIC USING PHOSPHOROUS
BASED INTUMESCENCES CHEMISTRY
Subhas Ghosh1
and Vikas Joshi2
1,2
Textile Science Laboratory, College of Technology, Eastern Michigan University,
Ypsilanti, 48197, Michigan, USA
Abstract:
A novel flame retardant application technique was developed for cotton apparel fabric using spirocyclic
pentaerythritol di (phosphoryl chloride) (SPDPC), which was further synthesized into bis diglycol spirocyclic
pentaerythritol bisphosphorate (BSPB). The flame retardant agent was then attached to the fabric using a
sol-gel process. The treated fabric was tested on a vertical flame tester which showed very high flame
retardancy as compared to the untreated cotton. TGA analysis exhibited a slow rate of weight loss and
higher ultimate degradation temperature for the FR treated sample. The FR treated sample showed modest
loss in strength while retaining 86.4% of its original strength. The fabric’s appearance did not alter and the
change in stiffness was insignificant as a result of the FR finish.
Keywords: flame retardant, synthesis, SPDPC, TGA
1.Introduction
Fire retardancy (FR) is an important requirement for apparel and other furnishing textiles. Textile
substrate has a high surface area and close contact with skin that created more complications in
developing new chemistry. Most effective flame retardant additive and finishes developed during
the period between the 1950s and the 1980s raised concerns over the toxicological and
environmental consequences of using such chemicals 1
.
Recent research studies focused on the development of an alternative to these traditional fire
retardant agents. These studies have been conducted mostly on intumescent fire retardants.
Horrocks et al.1
synthesized spirocyclic pentaerythritol di (phosphonyl chloride) (SPDPC) as a
char former. SPDPC was applied to the Proban®
treated cotton fabric, which created further
higher level of char formation owing to the presence of Proban®
and enhanced flame retardancy 5
.
It is important to recognize that these intumescent finishes must be substantively attached to the
textile fabric without losing required textile properties to achieve wash durability. Char formation
on wool keratin and nylon was also studied using polyol phosphoryl chlorides6
. Nylon 6 and 6, 6
were phosphorylated by SPDPC, cyclic 1, 3-propanediol phosphoryl chloride (CPPC) and cyclic
2, 2-diethyl-1, 3-propanediol phosphoryl chloride (CDPPC). Based on their calculations, the
authors suggested that only primary amine groups at the end of the molecular chain are possible
phosphorylation sites. When a wool sample was treated with SPDPC, it also improved char
formation. The authors found that like Proban-treated cotton, polyamide containing active
hydrogen atoms in primary amine groups at the end of the molecular chains can also be
phosphorylated by the polyol phosphoryl chlorides SPDPC, CPPC, and CDPPC. Ma et al.2
synthesized phosphate-polyester co-polymer using SPDPC. The structural properties of polyester
were altered as a result of introducing a new monomer into the polyester structure. The fiber’s
limiting oxygen index (LOI), glass-transition [tg], and solubility parameters [δ] increased with
increasing SPDPC content in the copolymer. Alongi and Ciobanu 3
coated cotton fabric with
silica using a sol-gel process. The authors claimed higher fabric flame retardancy and thermal
2. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
2
stability; however, the probability of an increase in fabric thickness and stiffness were not
discussed. Chen et al.4
reported a flame retardant and anti-dripping finish for poly (ethylene
terephthalate) fabric. PET fabric was treated with poly92-hydroxy propylene spirocyclic
pentaerythritol bisphosphonate (PPPBP). The authors found reduced flammability and dripping
tendency of PET fabrics using a vertical burning test. Gui-Hong Chen et al.7
investigated flame
retardancy of epoxy resins after treatment with bisdiglycol spirocyclic pentaerythritol
bisphosphorate (BDSPBP). They found that flame retardancy of the cured epoxy resins
significantly increased when BDSPBP loading was 18% w/w. Intumescent flame retardant can be
used on apparel only if the applied finish does not alter textile properties suchas strength,
stiffness, and appearance. In our investigation, we synthesized SPDPC and converted it into bis
diglycol spirocyclic pentaerythritol bisphosphorate (BSPB). This flame retardant solution was
attached to the cotton fabric using a sol-gel system that did not alter significantly any textile
properties of the fabric.
2. Experimental
2.1 Synthesis of Spirocyclic pentaerythritol diphosphoryl chloride (SPDPC)
SPDPC was synthesized using a modified version of the SPDPC synthesis procedure reported by
Horrocks2
. Pentaerythritol, 98% pure, MP 253-258 ºC and phosphorous oxychloride, 99% pure
(BP. 105 ºC), and ethylene glycol were obtained from Sigma Aldrich, Inc., and were used as
received.
Figure 1.SPDPC synthesis and HCl neutralization setup.
Pentaerythritol and phosphorous oxychloride were reacted in a three-neck glass reactor at a molar
ratio of 0.5:3.5. The reactor was connected to a magnetic stirrer, nitrogen supply, and a cold water
condenser with gradual drop-by-drop addition of phosphoryl chloride to pentaerythritol. HCl
formed during the reaction was removed into a beaker containing NaOH and phenolphthalein
indicator as safety precaution. The temperature was slowly increased to 80 ºC, and reaction was
continued for 2 hours. The temperature was further raised to 115 ºC and held for 20 hours. The
final milky white product was washed thoroughly with tetrahydrofuran and air dried (80% yield).
Scheme 1 shows the reaction schematics for synthesis of SPDPC.
3. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
3
Figure 2. Reaction schematic of the formation of Spirocyclic pentaerythritol diphosphoryl chloride
(SPDPC)
2.2 Synthesis of Bis diglycol Spirocyclic pentaerythritol bisphosphorate (BSPB)
Ethylene glycol, 99.8 % pure (B.P 195-198 ºC), was obtained from Sigma Aldrich and was used
as received. BSPB was synthesized as reported by reacting purified SPDPC with ethylene glycol
at a molar ratio of 0.1:0.25, as shown in the Figure 34
.The reaction mixture in the three-
neckreactor was heated gradually to 80 ºC and held there for 6 hours. Further temperature was
raised to 130 ºC, and the reaction mixture was held there for 4 hours. The end product was
washed with diethyl ether to obtain white powder.
Figure3.Reaction schematic of the formation of Bis-diglycol Spirocyclic Pentaerythritol Bisphosphorate
(BSPB)
4. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
4
2.3 Synthesis of Bis-silane and Flame retardant (FR) sol
The synthesis of silane and sol-gel system, and its attachment to textile substrates, is the unique
contribution of this research. Silquest A-Link 25 –Isocyanatopropyltriethoxysilane (B.P. 238) was
obtained from Momentive and used as received. Dibutyltindilaurate reagent, acetone (99.9%
pure), and ethanol were obtained from Sigma Aldrich and used as received. Bis-silane was
synthesized in two steps by reacting BSPB with triethoxysilane in the molar ratio 1:2 in presence
of dibutyltindilaurate as catalyst, figure 4. The reaction mixture is heated to 60 ºC and held there
for 4 hours in a three-neck glass reactor equipped with nitrogen gas, magnetic stirrer,
thermometer, and a circumference condenser. Formation of bis-silane was tested using Fourier
transformation infrared spectroscopy (FTIR).
The synthesized bis-silane was reacted with ethanol and water to produce a sol system. The pH of
the reaction mixture was adjusted between 3.5 and 4 and stirred at 450 rpm, using magnetic stirrer
for 15 minutes to produce a sol.
Figure 4. Reaction Schematic of formation of Bis-Silane
2.4 Application of the FR component on textile substrate.
The synthesized flame retardant sol was applied on a 100% cotton fabric sample (EPI/PPI: 59/47,
3.2 oz/sqyd). The hydroxyl group of the sol-gel flame retardant finish reacts chemically with the
cellulose in cotton to form strong covalent bonds, thus attaching the flame retardant finish to
cotton substrate3
.The sol-gel was applied on the cotton substrate using the pad-dry-cure method.
5. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
5
The mangle was adjusted to 25 psi, and the sample was treated with 4 dips and nips to achieve
100% wet pickup. After the application, the fabric was dried in the oven at 60 ºC for 10 minutes
and then cured at 115 ºC for 6 minutes in an air drying oven.
2.5 Measurements
A Bruker tensor 27 FTIR instrument was used to identify the presence of specific peaks of
SPDPC, BSPB, and bis-silane.
A DSC Q200 V24.4 Build 116 differential scanning calorimeter (DSC) was used to determine the
melting point of SPDPC. The sample was heated from room temperature to 300 ºC at a heating
rate of 10 ºC/min.
The FR treated samples were tested on a vertical flammability tester following ASTM D 6413
procedure to observe char length after flame and afterglow of the sample.
The treated and untreated cotton samples were analyzed on a TA instrument TGA Q500 thermo
gravimetric analysis instrument at a heating rate of 20 ºC/min. The treated and untreated cotton
samples’ rate of “% weight loss” was studied to draw conclusions about effectiveness of the
flame retardant finish.
The tensile strength of the coated and uncoated fabric was tested on the MTS Synergie 200 CRT
tensile tester by following the procedure in ASTM D5035.
The stiffness of the fabric was tested on the TABER V-5 stiffness tester by following the
procedure in ASTM D5342.
3. Results and Discussion
3.1 Analysis of SPDPC
The synthesized product after reaction between pentaerythritol and phosphorous oxychloride was
identified with the presence of P-Cl bond at 550 cm-1
stretching. Presence of these bonds indicates
the synthesis of SPDPC (Figure 2).
Figure 5. FTIR spectra of SPDPC
6. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
The melting point of SPDPC was found to be 245.57 ºC. The results were comparable with the
melting point range of SPDPC as report
Figure 6
3.2 Analysis of BSPB
The synthesized BSPB sample was tested for the presence of specific peaks on FTIR. The
reaction between SPDPC and ethylene glycol indicates the disappearance of P
of formation of BSPB; thus the disappearance of P
formation of BSPB.
Figure 7
International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
The melting point of SPDPC was found to be 245.57 ºC. The results were comparable with the
C as reported in the literature1
.
Figure 6. DSC Thermogram of SPDPC
The synthesized BSPB sample was tested for the presence of specific peaks on FTIR. The
reaction between SPDPC and ethylene glycol indicates the disappearance of P-Cl bond in process
of formation of BSPB; thus the disappearance of P-Cl stretching at 550 cm-1
confirmed the
Figure 7. Illustrates the FTIR scan of BSPB
International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
6
The melting point of SPDPC was found to be 245.57 ºC. The results were comparable with the
The synthesized BSPB sample was tested for the presence of specific peaks on FTIR. The
bond in process
confirmed the
7. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
7
3.3 Analysis of Bis-silane
The synthesized bis-silane was analyzed on FTIR to identify the peaks. Urea linkage was
observed in the FTIR scan of bis-silane. The C=O stretching and N-H stretching can be observed
on the scan at 1703 cm-1
and 1028 cm-1
arising from the presence of urea, as seen in Figure 8.
Figure 8. FTIR spectra of Bis Silane
3.4 Flame testing of the treated sample:
During the flame testing, the treated sample self-extinguished while the flame was removed. No
after flame was observed. The sample formed a one-inch char and exhibited afterglow of less than
one second. The results suggest that the phosphorous-based sol gel FR treated sample passed the
bench scale flame performance goals as suggested in ASTM D 6413: 2.0s, maximum after flame;
25.0s, maximum afterglow; and 4.0 in. maximum char length11
. Therefore, the flame resistance of
the cotton fabric was enhanced with the applied FR finish. However, the untreated cotton sample
immediately burnt to char.
a. FR treated sample: 1-inch char lengthb. Untreated cotton sample: Burnt to char
8. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
8
Figure9.ASTM D6413vertical flammability test results (a) FR Treated sample (b) Untreated sample
3.5 Thermo gravimetric analysis (TGA) of the treated and control cotton sample
Figure 10.TGA thermogram of FR treated and untreated cotton.
The thermal degradation curve exhibited that the FR-coated sample of cotton had a slower rate of
weight loss than an uncoated sample. The uncoated sample showed onset of weight loss at 380 ºC
and then abruptly degraded when the temperature reached 420 ºC, which is the usual degradation
temperature of cotton. The uncoated sample was completely degraded at about 700 ºC. However,
the coated sample showed an onset of weight loss at 360 ºC and continued gradually until 900 ºC,
unlike abruptly degrading as the uncoated cotton sample had done. The coated sample did not
degrade completely and showed about 20% weight retention at 900 ºC. This analysis clearly
indicates that a coated flame retardant sample is thermally more stable than the uncoated cotton
sample.
3.6 Analysis of tensile and stiffness properties of the treated fabric.
Coated and uncoated samples were tested for tensile strength and bending resistance to study the
change in physical properties of the fabric due to FR coating. The tensile strength results of the
coated cotton and uncoated fabric are reported in Table 1.
Fabric
Tensile
Strength
(lbf) ( Warp)
Strength
retention %
Coated 36.615
86.35
Uncoated 42.405
Table 1. Tensile strength for coated and uncoated cotton fabric
The coated fabric showed better strength retention after application of the FR finish than the
values reported in literature, where more than 20% loss of strength was reported9
. The SPDPC
0 20 0 400 6 00 800 100 0
0
20
40
60
80
1 00
1 20WtLoss%
T e m p
o
C
a ) u n c o a te d
b ) C o a te d
a
b
9. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
9
synthesis has high acidic pH (pH<4). However, the acidic impurities are removed to an extent
during purification of SPDPC. The FR sol system also has a slightly acidic pH, 4-4.5. The loss in
strength of cotton fabric due to FR finishing can be attributed to the acid catalyzed de-
polymerization of the cellulose polymer.
Stiffness of the coated and uncoated samples was measured to observe the change in stiffness of
the fabric due to the FR finish.
Fabric
Stiffness
(Millinewton
Meters)
Increase in
Stiffness
%
Coated 2.9 x 10-3
5.8
Uncoated 2.74 x 10-3
Table 2 Stiffness for coated and uncoated cotton fabric.
The FR coated cotton fabric had a minor increase in stiffness of 5.8%. The slight increase in
stiffness of the coated fabric can be attributed to an increase in hydrogen-bonded contacts from
the chemical interaction of FR sol and cellulose10
. The physical testing concluded that FR coated
fabric showed only a modest change in tensile strength and stiffness in comparison to the
uncoated fabric. From experience, these small changes in strength and stiffness do not have a
practical impact on the product. No color distortion of the fabric was observed owing to the FR
finish application.
4. Conclusion
In this study it was possible to successfully synthesize and apply a non-toxic phosphorus-based
flame resistant finish using intumescent chemistry. The FTIR and DSC analysis showed that
SPDPC, BSPB, and Silane were successfully synthesized.
The flame retardant finish was applied using the pad-dry-cure method, and the coated FR cotton
fabric showed an excellent flame resistance on the vertical flammability test. The TGA analysis
showed that the treated fabric had a slower weight loss than the untreated cotton sample during
burning. The treated cotton fabric had 86.4% tensile strength retention, and no significant change
in stiffness and appearance was observed.
5. References
[1] Horrocks, R. A., & Zhang, S. (2001). Enhancing polymer char formation by reaction with
phosphorylated polyols.1.cellulose. Polymer, 42 (19), 8025-8033.
[2] MA, Z., Zhao, W., Liu, Y., & Shi, J. (1997). Synthesis and properties of intumescent, phosphorus-
containing, flame-retardant polyesters. Journal of Applied Polymer Science, 63(12), 1511-1515.
10. International Journal of Advances in Chemistry (IJAC) Vol.3, No. 1/2/3 , August 2015
10
[3] Alongi, J., Ciobanu, M., &Malucelli, G. (2011). Sol-gel treatments for enhancing flame retardancy
and thermal stability of cotton fabrics: optimization of the process and evaluation of the durability.
Cellulose, 18(1), 167-177.
[4] Chen, D., Wang, Y.-, Hu, X., Wang, D.-, Qu, M.-, & Yang, B. (2005). Flame-retardant and anti-
dripping effects of a novel char-forming flame retardant for the treatment of poly(ethylene
terephthalate) fabrics. Polymer Degradation and Stability, 88, 349-356.
[5] Horrocks, R., & Zhang, S. (2002). Enhancing polymer flame retardancy by reaction with
phosphorylated polyols. part 2. cellulose treated with a phosphonium salt urea condensate ( proban cc)
flame retardant. Fire and Materials,26, 173-182
[6] Horrocks, R. A., & Zhang, S. (2004). Char formation in polyamides nylon 6 and nylon 66 and wool
keratin phosphorylated by polyol phosphorous chlorides. Textile Research Journal, 74(5), 433-44.
[7] Chen, G. H., Yang, B., & Wang, Y. Z. (2006). A novel flame retardant of spirocyclic pentaerythritol
bisphosphorate for epoxy resins. Journal of Applied Polymer Science, 102, 4978-4982.
[8] Wilkie, C. A., Dong, M. & Yu –Zhong, W. (2006). A novel flame retardant of Spirocyclic
pentaerythriol bisphosphate for epoxy resins. Journal for Applied Polymer Science, 102, 4978-4982.
[9] Yang, C. Q., & Yang, H. (2011). The flame retardant nomex/cotton and nylon/cotton blend fabrics for
protective clothing. In Advances in modern woven fabrics technology (pp. 198-210). InTech.
[10] K, S., A, V., K, J., & V, S. (2000). Effect of finishing agents on low stress mechanical properties of
full voil fabric. Indian Journal of Fiber & Textile Research, 25, 211-216.
[11] Winterhalter, C. A., Lomba, R. A., Tucker, D. W., & Martin, D. O. (2005). Novel approach to soldier
flame protection. Journal of ASTM International, 2(2