Electromagnetic interference shielding materials derived from epoxy based nanocomposites

Abstract

The thesis entitled “EMI shielding materials derived from epoxy based nanocomposites” systematically studies the effect of CF and surface modified CF on the EMI shielding of epoxy composites. In addition, to target the key properties required for effective shielding, carbonaceous nanomaterials like graphene oxide (GO) and multi walled carbon nanotubes (MWNT) as interconnects have been used to enhance the electrical, mechanical and thermal behavior of CF/epoxy composite. The functionalization of MWNTs and GO improves the dispersion state of filler in epoxy matrix. It also improves the adhesion between epoxy and CF, which attributes to excellent mechanical and thermal behavior of CF composites. These modifications also assist in attenuation of EM waves and hence achieve excellent EMI shielding behavior. Taken together, this thesis presents a comprehensive overview of various strategies that can be employed to improve the mechanical, thermal, electrical conductivity and EMI shielding properties of epoxy nanocomposites.