▎ 摘　　要

NOVELTY - A modified graphene abrasive material comprises modified graphene which is water-soluble graphene with hydroxyl group on surface. The hydroxyl content is 0.01-0.03%. USE - Modified graphene abrasive material for polishing paint used in car. ADVANTAGE - The raw material is easy to obtain, and the production cost is reduced. The economic efficiency is improved. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of modified graphene abrasive material, which involves treating graphene with solvent stripping method to react with thionyl chloride, after peeling off from the highly oriented pyrolytic graphite, to obtain graphene containing acyl chloride groups on the surface. The graphene was sequentially reacted with 1,3-propanediol amine, melamine, cyanuric chloride and diol compound to obtain modified graphene.