Polymers comprising particles at least one dimension in the nanosize range (1-100 nm)
This is a class of materials that have properties with significant commercial potential.
Polymer nanocomposites offer the possibility of developing new classes of materials with unique
structure- property relationships. These nanostructure-property relationships are the frontier in
nanocomposites.
Attractive features identified with nanocomposites are
· Efficient reinforcement without loss of ductility and even improvement in impact strength
· Excellent optical and altered electronic properties, heat stability, flame resistance, improved gas barrier properties, improved abrasion resistance, reduced shrinkage and residual stress.
Classification of nanomaterials
Three dimension
All the dimensions are in nanometer range eg. Nano silica
Two dimension
Two dimensions are in nanometer range,eg.wiskers or carbon nanotubes
Two dimension
One dimension is in the nanometer range, eg. Layered silicates or clays
Processing
Conventional processing ( mixing, shapping , and curing if required ) with apropreate quantity of nano materials and other aterials are followed . For better properties special technics such as Intercalation and exfoliation are utilized . These are two majour type of distribution of nano aterial in polyer chain
Applications
Automobile, aircraft and space, biomedical, composits etc are applications