▎ 摘　　要

NOVELTY - Aqueous paint comprises potassium silicate, zinc powder, graphene and coupling agent. The potassium silicate is an aqueous solution of potassium silicate with a modulus of 5-7, the zinc powder is a flaky zinc powder with a D50 of 300-600nm, the mass ratio of the zinc powder to the graphene oxide is 8:1-10:1. The D50 of the graphene oxide is 0.1-0.2 times of the zinc powder D50. USE - Aqueous paint. ADVANTAGE - The aqueous paint has excellent impact resistance and adhesion of the base material, and provides coating having excellent adhesion to the substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing aqueous paint, which involves firstly adding coupling agent into water, and adding ammonia water into the water, heating hydrolysis reaction to obtain coupling agent hydrolysis liquid, dissolving the potassium silicate powder with modulus of 2.5-3.0 in water, and then adding the obtained coupling agent hydrolysis liquid, obtaining modified potassium silicate aqueous solution, dropping the modified potassium silicate solution into silica sol solution to obtain potassium silicate water solution with modulus of 5-7, ball milling and mixing the oxidized graphene and zinc powder, pouring into potassium silicate water solution, ultrasonically dispersing uniformly, discharging to obtain the aqueous coating product.