▎ 摘　　要

NOVELTY - Preparing graphene-based corrosion-resistant coating involves using 90-120 pts. wt. epoxy resin, 22.5-30 pts. wt. polypyrrole, 8-15 pts. wt. graphene, 12-18 pts. wt. diatomaceous earth, 5-8 pts. wt. talc powder, 3-5 pts. wt. defoamer, 8-15 pts. wt. dispersant, 2-4 pts. wt. leveling agent, 1-3 pts. wt. curing agent, and 1.2-1.5 mL/g epoxy of solvent, mixing diatomaceous earth, talc powder, defoamer, dispersant, and leveling agent and stirring by a high-speed shear stirring device to prepare mixing assistant. The above graphene and polypyrrole are weighed into a mixed solvent of a certain amount of deionized water and ethanol, ultrasonically dispersed for 30-40 minutes to obtain relatively uniformly dispersed graphite Olefin dispersion. USE - Method for preparing graphene-based corrosion-resistant coating. ADVANTAGE - The method enables to prepare graphene-based corrosion-resistant coating that increases the density of the coating cross-section and improves the corrosion resistance and high protection performance of the coating, achieves protection of the substrate, and improves the thermal shock resistance of the epoxy resin coating. DETAILED DESCRIPTION - Preparing graphene-based corrosion-resistant coating involves using 90-120 pts. wt. epoxy resin, 22.5-30 pts. wt. polypyrrole, 8-15 pts. wt. graphene, 12-18 pts. wt. diatomaceous earth, 5-8 pts. wt. talc powder, 3-5 pts. wt. defoamer, 8-15 pts. wt. dispersant, 2-4 pts. wt. leveling agent, 1-3 pts. wt. curing agent, and 1.2-1.5 mL/g epoxy of solvent, mixing diatomaceous earth, talc powder, defoamer, dispersant, and leveling agent and stirring by a high-speed shear stirring device to prepare mixing assistant. The above graphene and polypyrrole are weighed into a mixed solvent of a certain amount of deionized water and ethanol, ultrasonically dispersed for 30-40 minutes to obtain relatively uniformly dispersed graphite Olefin dispersion. The graphene dispersion and the mixing aid are mixed into the epoxy resin at the same time, and stirred for 1.5 to 2.5 hours, then rotary evaporator is used to remove the solvent ethanol in the above mixture. The above curing agent is added to the above compound and stirred, then removed the air bubbles in the vacuum drying oven. The desired graphene-based corrosion-resistant coating is obtained, and only a stick applicator is needed for application.