摘要
石墨烯作为固体润滑剂及润滑添加剂的研制及表征是目前机械工程领域的研究热点。本文分析了石墨烯在不同工况下的摩擦学性能,论述及总结了其对应工况的润滑特性。当表面修饰的石墨烯作为润滑添加剂加入水中时,其较好的分散性可提高基底材料的润滑性能;在水基环境中应用时,石墨烯的润滑特性为非共价键相互作用或层间静电斥力形成的边界润滑;当添加适量的石墨烯时,不仅可以形成油膜层,而且还能够大幅度提高润滑性能,其润滑机制为薄膜润滑特性。当石墨烯作为固体润滑剂时,其润滑性能大多由其二维结构的完整程度决定;通过调控测试工况可以保持石墨烯的层状结构,其润滑机制为层间滑移诱导使得接触面上生成转移膜。最后,展望了石墨烯基固体润滑剂及润滑添加剂的发展方向,以期为石墨烯的润滑特性研究提供参考。
The development and characterization of graphene as a solid lubricant and lubricating additive is a current research hotspot in the mechanical engineering field. In this paper, the tribological properties of graphene under different working conditions are analyzed, and the lubrication characteristics under the corresponding working conditions are discussed and summarized. When surface-modified graphene is added to water as a lubricating additive, its good dispersibility can improve the lubrication performance of the substrate material. When applied in a water-based environment, lubrication involves boundary lubrication formed by non-covalent bond interactions or interlayer electrostatic repulsion. When an appropriate amount of graphene is added, it can not only form an oil film layer but also greatly improve the lubrication performance. The lubrication mechanism involves thin film lubrication. When graphene is used as a solid lubricant, its lubrication performance is mostly determined by the integrity of its two-dimensional structure. The layered structure of graphene can be maintained by adjusting the test conditions, and the lubrication mechanism involves the generation of a transfer film on the contact surface due to interlayer slip induction. Finally, future development directions are predicted in order to provide guidelines for further studies of the lubrication properties of graphene.
作者
尹绚
陈浩浩
姜涞
王江萍
贾洋
陈慧
庞皓升
张冰
YIN Xuan;CHEN HaoHao;JIANG Lai;WANG JiangPing;JIA Yang;CHEN Hui;PANG HaoSheng;ZHANG Bing(College of Mechanical and Electrical Engineering,Beijing University of Chemical Technology,Beijing 100029;College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing 100029;School of Economics and Management,Beijing University of Chemical Technology,Beijing 100029;College of Mathematics and Physics,Beijing University of Chemical Technology,Beijing 100029;Chinese Aeronautical Establishment,Beijing 100012;International Exchange&Cooperation Department Hong Kong,Macao,Taiwan Affairs Office,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
北大核心
2023年第4期1-9,共9页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
国家自然科学基金青年基金(51905295)
北京化工大学引进人才项目(buctrc202101)。
关键词
石墨烯
表面修饰
界面结构
润滑特性
graphene
surface modification
interfacial structure
lubrication feature
