Ultra-high dispersion of graphene in polymer composite via solvent free fabrication and functionalization.

ABSTRACT: The drying process of graphene-polymer composites fabricated by solution-processing for excellent dispersion is time consuming and suffers from a restacking problem. Here, we have developed an innovative method to fabricate polymer composites with well dispersed graphene particles in the matrix resin by using solvent free powder mixing and in-situ polymerization of a low viscosity oligomer resin. We also prepared composites filled with up to 20 wt% of graphene particles by the solvent free process while maintaining a high degree of dispersion. The electrical conductivity of the composite, one of the most significant properties affected by the dispersion, was consistent with the theoretically obtained effective electrical conductivity based on the mean field micromechanical analysis with th

SUBMITTER: Noh YJ 

PROVIDER: S-EPMC4360639 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature