▎ 摘　　要

NOVELTY - Aqueous coating is prepared by mixing 30-50 wt.% graphene oxide modified aqueous epoxy resin, 5-20 wt.% acrylic emulsion, 5-10 wt.% nano silica sol, 20-40 wt.% aqueous color paste, 0.1-1 wt.% wetting agent, 0.1-1 wt.% leveling agent and 5-20 wt.% water. The sum of the above-mentioned raw materials is 100 wt.%. USE - The coating is used for color coated board. ADVANTAGE - The coating has high corrosion resistance, smooth appearance, excellent gloss, high film hardness, excellent adhesion, improved comprehensive performance, improved hardness, and has compactness, is prepared by simple process, and repairs the tiny defects of the coating. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the coating, involving mixing the graphene oxide modified aqueous epoxy resin, acrylic emulsion, aqueous color paste and water, dispersing at 1800-2500 rpm for 20-45 minutes, grinding to a fineness of less than or equal to 10 microns, adding the nano silica sol, wetting agent and leveling agent in sequence, and stirring for 15-30 minutes at 500-800 rpm after mixing to obtain the product.