▎ 摘　　要

NOVELTY - Preparation method of modified graphene oxide epoxy composite anticorrosive paint comprises (i) preparing graphite flakes, sodium nitrate, potassium permanganate, sulfuric acid, hydrochloric acid and hydrogen peroxide to prepare uniformly dispersed graphene oxide nanosheets; (ii) adding the graphene oxide nanosheets into ethanol to obtain a dispersion by ultrasound, adding a small amount of 1-butyl-3-methylimidazole chloride solution to fully stir, filtering and washing to obtain a modified graphene oxide nanosheet dispersion; and (iii) adding the modified graphene oxide nanosheet dispersion into the epoxy resin, removing the ethanol in the oven, and adding the polyamine curing agent and stirring uniformly. USE - The method is useful for surface anticorrosion of underground pipelines, military equipment, storage tanks, and marine equipment (claimed). ADVANTAGE - The paint has good corrosion resistance and strong adhesion.