▎ 摘　　要

NOVELTY - Lubricating oil comprises 70-120 pts. wt. base oil, 8-15 pts. wt. graphene, 3-5 pts. wt. polyetheretherketone, 0.5-2 pts. wt. cetyltrimethoxysilane, 0.8-2.5 pts. wt. polyisobutylene succinimide, 5-8 pts. wt. nano calcium carbonate and 0.3-1 pts. wt. sodium dodecylbenzenesulfonate. USE - Used as lubricating oil. ADVANTAGE - The oil has high efficient and wear resistant, good compatibility and is stable and protects the mechanical component and prolongs the service life of the mechanical part. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing lubricant oil, comprising (i) adding the graphene, polyetheretherketone and polyisobutylene succinimide into the base oil, stirring uniformly to obtain the mixed solution, (ii) adding cetyltrimethoxysilane, nano calcium carbonate and sodium dodecylbenzenesulfonate into the mixed solution obtained in the step (i), maintaining the temperature at 60-70 degrees C and stirring for 1-2 hours to obtain the lubricating oil.