▎ 摘　　要

NOVELTY - Preparation of graphene/polyaniline-EPOSS hybrid material, involves dispersing polyaniline in a solvent, adding graphene, ultrasonically dispersing to obtain a graphene/polyaniline dispersion, slowly dripping EPOSS in the dispersion, reacting continuously for 40-55 hours at 75-85 degrees C, washing the obtained product with anhydrous ethanol, and centrifuging. USE - Preparation of graphene/polyaniline-EPOSS hybrid material for use in self-repairing hydrophobic composite coating used for metal base materials (all claimed). ADVANTAGE - The method enables stable dispersion of graphene in the aqueous epoxy resin, and provides hybrid material, which enables preparation of composite coating having excellent corrosion resistance and barrier property. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) self-repairing hydrophobic composite coating comprising an aqueous epoxy resin and 0.5-1 wt.%, preferably 0.6-0.8 wt.% hybrid material based on dry weight; and (2) use method of the self-repairing hydrophobic composite coating, which involves spraying sand on the surface of a metal base material, adding the hybrid material dispersion to the aqueous epoxy resin, stir-mixing, adding an aqueous curing agent, stirring continuously to obtain a uniformly dispersed composite coating, uniformly spraying the composite coating on the surface of the substrate by high-pressure spraying, and curing for 7 days at room temperature.