▎ 摘　　要

NOVELTY - A composite coating comprises acrylic resin, resin matrix, diluent, nano-filler, modified graphene and additive. USE - Composite coating. ADVANTAGE - The composite coating has excellent hydrophilic performance, hardness and barrier property, and improves the adhesion of the film to the substrate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of composite coating, which involves (1) mixing acrylic resin with diluent, resin matrix and nano-filler to obtain mixed material, and (2) mixing the mixed material with modified graphene and additive.