Study on Dielectric and Thermal Properties of ABS / multilayer graphene Composites

Abstract

ABS / multilayer graphene (MLGN) composites were prepared by melt blending ABS and multilayer graphene masterbatch,and their dielectric and thermal properties were studied. The results show that the dielectric constant, dielectric loss, conductivity, thermal decomposition temperature and thermal conductivity of ABS / MLGN composites increase with the increase of MLGN content. The content of MLGN in ABS / MLGN composites with conductive percolation is between 7-8%. When the mass content of MLGN increased to 7%, the dielectric constant of the composite increased from 3.01 to 103.23, the dielectric loss increased from 0.058 to 0.83 at 100Hz, the 5% mass loss temperature of the composite increased by 17.0°C and the thermal conductivity increased by 1.9 times. The research results can provide reference for the preparation of thermally conductive polymer dielectric composites.