▎ 摘　　要

NOVELTY - An epoxy resin-graphene oxide composite coating is obtained by uniformly mixing component (A) comprising epoxy resin, organic solvent and graphene oxide, and component (B) comprising curing agent. The graphene oxide is uniformly dispersed in the epoxy resin. The amount of graphene oxide in the component (A) is 0.05-20 %mass with respect to the amount of epoxy resin. USE - Epoxy resin-graphene oxide composite coating used in preparation of protective coating of substrate surface for forming corrosion-resistant substrate surface (all claimed). ADVANTAGE - The epoxy resin-graphene oxide composite coating has excellent adhesiveness with substrate surface, and enhances corrosion resistance of surface, and effectively blocks penetration of corrosive media path from coating surface to substrate. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) usage of epoxy resin-graphene oxide composite coating in preparation of protective coating of substrate surface; and (2) corrosion-resistant substrate surface.