▎ 摘　　要

NOVELTY - A composite material comprises aluminum matrix having thickness of 0.02-0.5 mm, and graphene-oil-based epoxy coating having thickness of 1-20 mu m and provided on at least one side of the aluminum matrix. USE - Composite material (claimed). ADVANTAGE - The composite material has excellent adhesiveness, ductility, reprocessing performance, heat dissipation property and corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of composite material, which involves adding dispersing agent to nano graphene, mixing, forming mother liquid, adding oil-based epoxy coating, mixing, forming mixed liquid, coating obtained product on aluminum matrix, drying, and curing.