Please enable JavaScript.
Coggle requires JavaScript to display documents.
Polymer compostite - Coggle Diagram
Polymer compostite
Required properties for polymer matrix
Reduce moisture absorption property
Low Shrinkage
Low thermal expansion
matrix is stable at high temperture.
Must be elastic to transfer load/force to fibers
fexilibale in nature should not be hard other side disperde phal=he musrt be hard
Reasonable strenght, modulus and elongation.
Strength at elevated temperature
tempt of that any fixied it must very with 20 - 22% thermal stablility.
Excellent chemical resistance
risk of chemical exposer
Good dimensional stability
during appli appiled force coming from any direction 3 D properties .
good flow chararcteristic
bz of good mxing
desper phase is less ----> load tranfer is irregalur
void will generate void easly
Advantage for using thermoplastics resins
store at room tempareture.
compsite parts can be made or join by simple heating
compistite scrap can be remold
thermoplastics have better toughness and impact strenght than thermosets
shorter fabrication time
classification of polymer composite
this composite material on basics of reinforcement
compostie materials
particle
Large particle
small particle
disadvanage
disclomareta
advantage
Fiber
continuous(aligned)
compression molding
Discontinuous(short)//extrusion molding
Aligned
Random
structural are mostly customised to achieve the required and demanding
Laminate
Sandwich
disadvantage of natural fiber over synthetic fiber
Synthetic fibers