▎ 摘　　要

NOVELTY - Preparing graphene modified polybutene composite material involves mixing graphene, graphene surface treatment agent and graphene coating agent to obtain mixture, kneading the mixture to obtain graphene filled masterbatch with three-dimensional thermally conductive network structure. The graphene filler masterbatch is melted and mixed with polybutene to obtain graphene modified polybutene composite material. USE - Method for preparing graphene modified polybutene composite material. ADVANTAGE - The method enables to prepare graphene modified polybutene composite material that improves the thermal conductivity and mechanical properties of polybutene composites, and reduces gas permeability coefficient.