▎ 摘　　要

NOVELTY - An aqueous paint comprises 15-25 %mass styrene-acrylic acid emulsion, 5-10 %mass aqueous epoxy resin, 1-5 %mass acrylic acid resin, 1-5 %mass iron oxide red, 0-5 %mass graphene, 1-2 %mass zinc oxide, 20-30 %mass barium sulfate, 1-1.5 %mass conversion agent, 0.5-1 %mass conversion accelerator, 0.05-0.20 %mass leveling agent, 0.05-0.20 %mass defoamer, 0.1-0.3 %mass dispersing agent, 1-2 %mass thickener, 3-5 %mass ethanol and remaining water. The conversion agent is selected from salicylic acid, gallic acid, tea polyphenols, tannic acid, ascorbic acid and/or oxalic acid. The conversion accelerator is selected from phloroglucinol or catechol. The leveling agent is polyacrylate. The defoamer is selected from tributyl phosphate or aqueous silicone oil. The dispersing agent is unsaturated polyaminoamide. The thickener is selected from polyacrylate, hydroxymethylcellulose, alginate and agar. USE - Aqueous paint. ADVANTAGE - The environmentally-friendly aqueous paint does not contain organic solvent, has excellent physical and chemical rust protection effects, and effectively reduces the surface dry time. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of aqueous paint, which involves (a) adding iron oxide red, graphene, zinc oxide, barium sulfate, dispersing agent, water and 2/3 defoamer, mixing, dispersing and obtaining pigment filler slurry, (b) grinding pigment filler slurry to a fineness of less than 50 microns, (c) adding styrene-acrylic acid emulsion, aqueous epoxy resin, aqueous acrylic acid resin, conversion agent, conversion accelerator and pigment filler slurry, stirring, adding leveling agent, thickening agent and 1/3 defoamer, stirring, adjusting the viscosity with water, filtering and adding ethanol to obtain final product.