▎ 摘　　要

NOVELTY - A graphene-based anticorrosive coating comprises 6-12 pts. wt. graphene oxide, 20-45 pts. wt. phenolic resin, 2-6 pts. wt. polyvinyl butyral, 1-4 pts. wt. rare earth chloride, 12-30 pts. wt. graphene quantum dots, 2-5 pts. wt. thermally-conductive metal powder, 3-6 pts. wt. carbon nanotubes, 12-30 pts. wt. solvent, 2-6 pts. wt. antioxidant, 5-9 pts. wt. curing agent and 12-18 pts. wt. defoamer. The size of the graphene quantum dots is 2-4 nm. The solid content of phenolic resin is 45-55%. USE - Graphene-based anticorrosive coating for use in metal material. ADVANTAGE - The high-temperature-resistant graphene-based anticorrosive coating utilizes excellent dispersibility of graphene quantum dots in solvent and strong non-covalent interaction with graphene sheets, so that the two-dimensional sheet structure of graphene layers are layered in the coating to form dense physical barrier to enhance the corrosion resistance of the coating. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene-based anticorrosive coating, which involves (S1) mixing graphene quantum dots, graphene oxide and solvent, grinding, ultrasonically processing at ultrasonic power of 1000-1200 W for 40-60 minutes to obtain composite slurry material, (S2) adding phenolic resin, polyvinyl butyral, carbon nanotubes and curing agent to prepared composite slurry, stirring at 1000-1200 rpm for 2-4 hours to obtain graphene anticorrosive slurry, (S3) adding rare earth chloride, thermally-conductive metal powder, antioxidant and defoamer to graphene anticorrosive slurry, stirring at 1200-1500 rpm for 2-3 hours and mixing evenly to obtain final product.