▎ 摘　　要

NOVELTY - The preparation method of ultra-low friction lubricating oil additive involves (i) adding certain amount of graphene and lubricants to mortar, manually grinding for 15-20 minutes, and uniformly mixing to obtain a mixed solution (a), (ii) adding mixed solution (a), stabilizer, and absolute ethanol to a beaker, dissolving, and ultrasonically dispersing at certain temperature for 40-60 minutes to obtain mixed solution (b), (iii) adding mixed solution (b), and lubricating oil into a ball mill, grinding, and collecting mixed oil, and (iv) adding mixed oil to a friction and wear tester. USE - Preparation of ultra-low friction lubricating oil additive (claimed). ADVANTAGE - The method enables the preparation of ultra-low friction lubricating oil additive effectively. DETAILED DESCRIPTION - The preparation method of ultra-low friction lubricating oil additive involves (i) adding certain amount of graphene and lubricants to mortar, manually grinding for 15-20 minutes, and uniformly mixing to obtain a mixed solution (a), (ii) adding mixed solution (a), stabilizer, and absolute ethanol to a beaker, dissolving, and ultrasonically dispersing at certain temperature for 40-60 minutes to obtain mixed solution (b), (iii) adding mixed solution (b), and lubricating oil into a ball mill, grinding, and collecting mixed oil, and (iv) adding mixed oil to a friction and wear tester to detect the tribological properties of the oil.