一种自修复发动机润滑油的制备方法
By modifying the surface of nano-cerium dioxide and graphene nanosheets and rationally compounding them, the problems of easy agglomeration and sedimentation of graphene in lubricating oil were solved, achieving high dispersion stability and excellent friction reduction and anti-wear properties of lubricating oil, and simplifying the preparation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI QIBITE LUBRICANTS CO LTD
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Graphene sheet materials in existing engine lubricants are prone to agglomeration and sedimentation, and their dispersion stability is insufficient. Single particulate or single sheet additives cannot simultaneously achieve friction reduction, wear resistance and micro-repair effects. In addition, some lubricant additive systems have problems such as complex processes, unclear addition windows, and excessive addition can easily lead to performance degradation.
By surface modification of nano-cerium dioxide and graphene nanosheets, and rational compounding in engine lubricating base oil, nano-cerium dioxide modified with oleic acid and stearic acid and graphene nanosheets coated with oleic acid were prepared. The mixture was then physically compounded in engine lubricating base oil and ultrasonically dispersed to form a synergistic lubrication and repair system.
This method improves the compatibility and dispersion stability of nanomaterials in lubricating oil, reduces the coefficient of friction, alleviates friction and wear, enhances the self-healing ability of lubricating oil, and maintains the uniformity and stability of the oil sample, while simplifying the preparation process.
Smart Images
Figure CN122405352A_ABST