Formation and Functionality of Interphase in Polymer Nanocomposites

An interphase is a distinct region between two different phases in composites. Knowledge and understanding of the nature and properties of interphase between the nanofillers and polymer matrix are essential to develop polymer nanocomposites with enhanced properties. This chapter presents fundamental issues on the formation of interphase between carbon-based nanofillers, such as carbon nanotubes, graphene, carbon black, and polymer matrices. Special emphasis is placed on illustrating the role of interphase in governing the mechanical, electrical, thermal and other functional properties of nanocomposites. In view of the progress made so far, some suggestions are made on designing the interphase with specific structures for intended applications of nanocomposites.