▎ 摘　　要

NOVELTY - A two-dimensional graphene-containing carbon nitride nanosheets lubricant comprises 0.0025-0.1000 %mass two-dimensional graphene-containing carbon nitride nanosheets, and balance amount of lubricant base oil. USE - Two-dimensional graphene-containing carbon nitride nanosheets lubricant (claimed). ADVANTAGE - The two-dimensional graphene-containing carbon nitride nanosheets lubricant has higher maximum card-free biting load and sintering load, smaller friction coefficient, effectively improves the friction abrasion behavior of the friction surface, and prolongs the service life of the mechanical components. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of two-dimensional graphene-containing carbon nitride nanosheets lubricant, which involves adding two-dimensional graphene-containing carbon nitride nanosheets to lubricating base oil, uniformly stirring, ultrasonically dispersing two-dimensional graphene-containing carbon nitride nanosheets, and stirring at constant speed, and heating at constant temperature.