▎ 摘　　要

NOVELTY - Graphene-containing oil-soluble slurry is claimed. The graphene-containing oil-soluble slurry is obtained by dispersing oil-soluble hydrocarbon amine and metal element-stabilized zirconia nano-particles in oil-soluble hydrocarbon amines, graphene, and poly(isobutylene-b-propanol-b-isobutylene) block copolymers. USE - The graphene-containing oil-soluble slurry is useful in lubricating oil and grease (all claimed). ADVANTAGE - The method: utilizes easily available raw materials and lubricating oil and grease to increase anti-friction performance; is simple and is easy to realize; and has low production cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing graphene-containing oil-soluble slurry, comprising (i) mixing metal element stabilized zirconia nano-particles and poly (isobutylene-b-propanol-b-isobutylene) block copolymers to obtain mixture A, (ii) mixing graphene dispersion liquid and oil-soluble hydrocarbon amine to obtain mixture A1, and (iii) mixing the mixture A and mixture A1 to obtain stable dispersion oil-soluble slurry of metal element stabilized zirconia nano-particles and graphene; (2) lubricating oil comprising graphene-containing oil-soluble slurry; and (3) grease comprising graphene-containing oil-soluble slurry.