▎ 摘　　要

NOVELTY - Oil-soluble graphene compound comprises polyamidoamine (PAMAM) and graphene oxide. The PAMAM is connected to graphene oxide by amide bond. The 1-18C linear alkyl or hydrogen atom is connected to PAMAM terminal by amide bond. USE - The oil-soluble graphene compound is used for preparation of antiwear additive for lubricating oil (claimed). ADVANTAGE - The compound has excellent oil solubility, good anti-wear performance and excellent extreme pressure performance, does not contain sulfur, phosphorus, chlorine and other harmful elements to environment and is environment friendly.