▎ 摘　　要

NOVELTY - Photosensitive graphene oxide coating with a customizable pattern, comprises graphene oxide, aqueous polyurethane, thickener, defoaming agent and diisocyanate. The aqueous polyurethane is polyether and/or polyester. The thickener is cellulose ether and/or polyurethane. The defoaming agent comprises silicone, polyether and/or mineral oil. The diisocyanate is aliphatic and/or aromatic. The mass ratio of graphene oxide to aqueous polyurethane is 1:(100-10000). USE - The coating with a customizable pattern (claimed) is useful for textiles, shoes and decorations. ADVANTAGE - The coating utilizes a simple UV reduction method with a custom patterned opaque template, realizes the color difference caused by the reduction of some areas of the graphene oxide coating and the unreduction of some areas, and is a high-value graphene composite aqueous polyurethane coating with a personalized pattern, environmentally-friendly, prepared by simple process, and is easy for industrialize production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the coating with a customizable pattern, involving (i) adding graphene oxide slurry to an aqueous polyurethane emulsion, mixing, respectively adding thickener and defoaming agent, uniformly mixing, leaving still, adding diisocyanate and uniformly mixing to obtain photosensitive graphene oxide coating (A), where the graphene oxide slurry is obtained by mixing graphene oxide and aqueous polyurethane, (ii) coating the coating (A) on the surface of a substrate, drying, curing to obtain a photosensitive graphene oxide coating (B) and placing an opaque template of a preset pattern on the upper surface of the coating (B), and (iii) irradiating with UV light or sunlight to obtain the target product.