| abstract |
The invention discloses a sulfurized nano-graphene anti-wear and anti-friction lubricating oil additive and its preparation method and application. The lubricating oil additive is mainly composed of sulfided nano-graphene, nano-tungsten disulfide, polyisobutylene succinimide, surface modifier and the like. Further, the lubricating oil additives may also include extreme pressure antiwear agents, antioxidants, detergents and dispersants, corrosion inhibitors and the like. The lubricating oil additive of the invention has good dispersion stability in the base lubricating oil, can greatly improve the anti-wear and anti-friction performance of the base lubricating oil, and can be widely used in the lubricating oil of various vehicles and large mechanical equipment. |