▎ 摘　　要

NOVELTY - High-dielectric graphene-based elastomer complex material comprises an elastic matrix and a graphene dielectric filler dispersed in the elastic matrix. The graphene dielectric filler is a graphene oxide nanosheet with porous polydopamine on the surface. The mass ratio of the graphene dielectric filler to the elastic matrix is (0.1-1.2):100. USE - Used as High-dielectric graphene-based elastomer complex material. ADVANTAGE - The surface is modified with porous polydopamine: prevents the fillers from overlapping each other to form a conductive path; reduces the electrical conductivity. The porous polydopamine surface layer structure improves the compatibility between the filler and the elastic matrix, reduces the dielectric loss caused by the interface polarization, and improves the breakdown strength.