文献类型：期刊文献

英文题名：Study of the Conductivity and Tribological Performance of Ionic Liquid and Lithium Greases

作者：Fan, Xiaoqiang[1,2];Xia, Yanqiu[1];Wang, Liping[1];Pu, Jibin[1];Chen, Tiedan[1];Zhang, Haobo[3]

第一作者：Fan, Xiaoqiang

通信作者：Xia, YQ[1]

机构：[1]Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100039, Peoples R China;[3]Gansu Univ Tradit Chinese Med, Lanzhou 730000, Peoples R China

第一机构：Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China

通信机构：[1]corresponding author), Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China.

年份：2014

卷号：53

期号：1

起止页码：281

外文期刊名：TRIBOLOGY LETTERS

收录：;EI(收录号：20140517251362);Scopus(收录号：2-s2.0-84892916241);WOS:【SCI-EXPANDED(收录号:WOS:000329317800028)】；

基金：This work was supported by the Hundreds Talent Program of the Chinese Academy of Science.

语种：英文

外文关键词：Grease; Boundary lubrication; Ionic liquid; Conductive

摘要：Ionic liquid (IL) lubricating greases were prepared using 1-hexyl-3-methylimidazolium tetrafluoroborate and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl) amide as base oil and polytetrafluoroethylene (PTFE) as thickener, respectively. Three kinds of lithium greases were also prepared using lithium ILs ([Li(PAG)]X) as base oil and PTFE as thickener. 1-Ethyl-3-methyl imidazolium hexafluorophosphate as an additive was added to the PAG grease, which was prepared using polyalkylene glycol monobutyl ether (PAG) as base oil and PTFE as thickener. The conductivities and tribological properties of the prepared lubricating greases were investigated in detail. Scanning electron microscopy and X-ray photoelectron spectroscopy were employed to explore the friction and wear mechanism. The results showed that the IL and lithium lubricating greases have conductivities and excellent tribological properties. Especially, IL greases have the highest conductivity. The excellent tribological properties are attributed to the formation of boundary films consisting of both tribo-chemical reaction films and physical absorption films, while high conductivities are attributed to the intrinsic electric fields of the ILs.