▎ 摘　　要

NOVELTY - Processing surface modification of graphene comprises (i) utilizing graphene as reinforcing phase, adding graphene to 1000 ml dopamine hydrochloride solution, firstly dispersing ultrasonically for 10-30 minutes, and applying mechanical stirring for 24-26 hours, avoiding light during the reaction process to obtain a polydopamine graphene solution, and (ii) adding 10-20 ml copper sulfate solution to the polydopamine graphene solution with the help of the reducibility of polydopamine, copper ions reduced to form copper nanoparticles on the surface of the graphene, and reacting for 2-4 hours under the action of mechanical stirring. USE - The method is useful for processing surface modification of graphene. ADVANTAGE - The method is stable; improves dispersibility of composite material and improves performance of material.