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Project Coordinator:

EPOXY
BASED
COMPOSITE
MATERIALS

Mr. Sunil Chamoli

BY-:
Meenu Bhandari
COMPOSITE MATERIALS..??


Composite materials are materials made from two or more
constituent materials with significantl...
CLASSIFICATION
Composites can be classified according to different criteria:
 Metal matrix composites
eg: Carbon fibers i...
OBJECTIVE OF WORK
1.

2.

3.

4.

Fabrication of epoxy based composites reinforced
with short glass fibers and natural fib...
RAW MATERIALS
Natural fibers (bamboo fiber, coir)
 Glass fiber
 Epoxy resin
 Hardener
 NaOH alkali

MATRIX MATERIAL






Different types like metals, ceramics and
polymers.
Polymer matrices are most commonly used
matr...
FIBER MATERIAL


Fiber is a reinforcing phase of composite
materials.



Fibers which will be used in the project:
1. Na...
FIBERS REQUIRED
METHODOLOGY




Treatment of Fiber using alkali (NaOH)
Fabrication of Composite Materials
MECHANICAL TESTING

Tensile test
 Flexural (bending) test
 Impact test
 Scanning Electron Microscopy (SEM)

TENSILE TEST
The tensile strength is determined by the tensile
test which is generally performed on flat
specimens using U...
STANDARD TENSILE
TEST SPECIMEN
FLEXURAL TEST


This test measures the force required to bend a
beam under 3-point loading conditions. The data
is often ...
FLEXURAL TEST WITH
THREE POINT LOADING
IMPACT TEST


The Charpy impact test, also known as the Charpy
V-notch test, is a standardized high strain-rate test
whic...
IMPACT TEST
SCANNING ELECTRON
MICROSCOPY {SEM}


The morphological characterization of the
composite surface is done in scanning elec...
SCANNING ELECTRON
MICROSCOPY
ESTIMATED COST AND TIME


The materials required for the fabrication of
composites are not costly and can be obtained
eas...
THANK YOU
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Composite material

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Composite material

  1. 1. Project Coordinator: EPOXY BASED COMPOSITE MATERIALS Mr. Sunil Chamoli BY-: Meenu Bhandari
  2. 2. COMPOSITE MATERIALS..??  Composite materials are materials made from two or more constituent materials with significantly different properties, that when combined, produce a material with characteristics different from the individual components.  Composite materials consist of two or more chemically distinct constituent on a macro scale having a dispersed interface separating them and having bulk performance which is considerably different from those of any of its individual constituents.  Examples: Cement, Concrete, Fiber-reinforced polymer, etc.
  3. 3. CLASSIFICATION Composites can be classified according to different criteria:  Metal matrix composites eg: Carbon fibers in Aluminium matrix  Ceramic matrix composites eg: Conventional SiC or the less expensive SiSiC  Polymer matrix composites eg: Thermoset, Thermoplastic, Rubber
  4. 4. OBJECTIVE OF WORK 1. 2. 3. 4. Fabrication of epoxy based composites reinforced with short glass fibers and natural fibers. Study the mechanical behavior of the composites. Study the effect of alkali treatment on behavior of the composites. Study the surface morphology of the composites using Scanning Electron Microscopy (SEM).
  5. 5. RAW MATERIALS Natural fibers (bamboo fiber, coir)  Glass fiber  Epoxy resin  Hardener  NaOH alkali 
  6. 6. MATRIX MATERIAL     Different types like metals, ceramics and polymers. Polymer matrices are most commonly used matrix materials due to its advantages like cost efficiency, light weight, high strength to weight ratio and environmental friendly. Most commonly used thermoset resins are epoxy, vinyl ester, polyester resin, etc. Epoxy resin will be used for the fabrication of composites in the project.
  7. 7. FIBER MATERIAL  Fiber is a reinforcing phase of composite materials.  Fibers which will be used in the project: 1. Natural fibers (bamboo fiber, coir) 2. Glass fiber
  8. 8. FIBERS REQUIRED
  9. 9. METHODOLOGY   Treatment of Fiber using alkali (NaOH) Fabrication of Composite Materials
  10. 10. MECHANICAL TESTING Tensile test  Flexural (bending) test  Impact test  Scanning Electron Microscopy (SEM) 
  11. 11. TENSILE TEST The tensile strength is determined by the tensile test which is generally performed on flat specimens using Universal Testing Machine (UTM).  During the test a uni-axial load is applied through both the ends of the specimen.  The test will be repeated three times on each composite type and the mean value will be considered. 
  12. 12. STANDARD TENSILE TEST SPECIMEN
  13. 13. FLEXURAL TEST  This test measures the force required to bend a beam under 3-point loading conditions. The data is often used to select materials for parts that will support loads without flexing.  The test provides values for the modulus of elasticity in bending, flexural stress and the flexural strain of the material.
  14. 14. FLEXURAL TEST WITH THREE POINT LOADING
  15. 15. IMPACT TEST  The Charpy impact test, also known as the Charpy V-notch test, is a standardized high strain-rate test which determines the amount of energy absorbed by a material during fracture.  This absorbed energy is a measure of the material's notch toughness.
  16. 16. IMPACT TEST
  17. 17. SCANNING ELECTRON MICROSCOPY {SEM}  The morphological characterization of the composite surface is done in scanning electron microscope.  A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning it with a focused beam of electrons.
  18. 18. SCANNING ELECTRON MICROSCOPY
  19. 19. ESTIMATED COST AND TIME  The materials required for the fabrication of composites are not costly and can be obtained easily from the market at a minimal cost.  Price of Epoxy Resin = Rs. 160-180 per kg, our requirement is approx. 3 kg.  Price of NaOH alkali = Rs. 40-45 per kg.
  20. 20. THANK YOU

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