Electric Response and Thermal Properties of Ethylene Vinyl Acetate/Graphene-based Composite

Abstract

Ethylene vinyl acetate/Graphene (EVA/G) composites containing two different types of graphene were prepared by solvent-casting. The EVA/commercial graphene (CG) composites featured a percolation threshold at slightly higher than 20 wt% of CG content, while, the EVA/G-like was found to be conductive at 30 wt%. Below the percolation threshold, a constant dielectric loss behavior was observed for most of the graphene containing composites. Closer to the percolation, interfacial loss peaks were observed and their frequential position was found to shift toward the higher frequencies when the temperature was increased.