▎ 摘　　要

NOVELTY - The preparation method of modified edge functionalized graphene lubricant additive involves adding graphite powder to a reactor, sealing the reactor, introducing carbon dioxide gas into the reactor, starting reactor, and grinding for a period of time to obtain edge functionalized graphene, and reacting the obtained edge functionalized graphene with oleylamine. USE - Preparation method of modified edge functionalized graphene lubricant additive. ADVANTAGE - The method enables preparation of highly dispersible modified edge functionalized graphene lubricant additive with small structural defects, and excellent stability, lubricating performance and safety, by simple, economical and environmentally-friendly process.