▎ 摘　　要

NOVELTY - Preparing fluorinated graphene coating, involves (a) mixing 100-200 ml/l silane coupling agent, 180-300 ml/l alcohol, 0.5-2 g/l corrosion inhibitor, 0.1-2 g/l butyl titanate and remainder of deionized water to form a mixed solution, adjusting pH value of the solution to 3-5, ultrasonically vibrating to mix, and hydrolyzing at 25-50 degrees C for 12-72 hours to obtain a silane hydrolysis solution, (b) mixing epoxy resin, fluorinated graphene and diluent in a mass ratio of 10:(0.1-0.8):(1-10), stirring for 0.5-10 hours by ball milling, adding curing agent, and mixing to obtain fluorinated graphene modified epoxy resin, (c) soaking the pretreated metal substrate in the silane hydrolysis solution for 30-120 second, drying, and solidifying to obtain a silanized metal substrate, and (d) coating the silanized substrate surface with the fluorinated graphene modified epoxy resin having a thickness of 30-200 mu m, drying, and curing to obtain the coating on the surface of the substrate. USE - The method is useful for preparing fluorinated graphene coating. ADVANTAGE - The obtained coating has high corrosion resistance, and improves bonding strength of the coating and metal substrate, and ensures prolonged protection of the metal substrate.