引用本文:宋增红, 梁永民, 刘维民, 周峰, 凡明锦.锂离子液体作为钢/铜、钢/铝摩擦副润滑剂的摩擦学性能[J].中国表面工程,2013,26(6):100~105
SONG Zenghong, LIANG Yongmin, LIU Weimin, ZHOU Feng, FAN Mingjin.Tribological Property of Lithium-based Ionic Liquids as Lubricant for Steel/Copper and Steel/Aluminum Contacts[J].China Surface Engineering,2013,26(6):100~105
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锂离子液体作为钢/铜、钢/铝摩擦副润滑剂的摩擦学性能
宋增红, 梁永民, 刘维民, 周峰, 凡明锦1,2
1.中国科学院兰州化学物理研究所 固体润滑国家重点实验室, 兰州 730000;2.中国科学院大学, 北京100049
摘要:
采用一步法合成了锂离子液体润滑剂［Li(OZO)］TFSI，并选择含有相同阴离子的传统咪唑离子液体1丁基3甲基咪唑双三氟甲烷磺酰亚胺盐（LF104）作对比，在SRV摩擦磨损试验机上评价了其作为钢/铜、钢/铝润滑剂的润滑性能，用X射线光电子能谱仪（XPS）分析了润滑机理。结果表明：在室温或高温（100 ℃）条件下，［Li(OZO)］TFSI都具有优异的减摩抗磨性能，摩擦过程中在金属摩擦副表面有物理吸附与摩擦化学反应发生，形成了阻止金属间直接接触的保护膜，从而起到了减摩抗磨的效果；且［Li(OZO)］TFSI可以取代LF104作为两种摩擦副的润滑剂，而其合成过程却比LF104简单的多。
关键词:  锂离子液体  润滑剂  减摩； 抗磨
DOI：10.3969/j.issn.1007-9289.2013.06.017
分类号:
基金项目:
Tribological Property of Lithium-based Ionic Liquids as Lubricant for Steel/Copper and Steel/Aluminum Contacts
SONG Zenghong, LIANG Yongmin, LIU Weimin, ZHOU Feng, FAN Mingjin1,2
1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;2.University of Chinese Academy of Sciences, Beijing 100049
Abstract:
Lithium-based ionic liquid (IL, ［Li(OZO)］TFSI) was synthesized by one step and evaluated as lubricant for steel/copper and steel/aluminum contacts on an Optimol SRVIV oscillating reciprocating friction and wear tester. The traditional IL 1butyl3methylimidazolium bis(trifluoromethylsulfonyl)imide (LF104) was used as a contrast. The Xray photoelectron spectrometer (XPS) analysis was carried out to explore the lubrication mechanism. The results show that ［Li(OZO)］TFSI has excellent frictionreducing and antiwear properties both at room temperature and at 100 ℃. Physical adsorption and tribochemical reactions occur during the rubbing process with the generation of surface protective films, which prevent the metalmetal contact and further reduce friction and wear. ［Li(OZO)］TFSI can substitute for LF104 to lubricate the two kinds of contacts, and the preparation of the former is simpler than the latter.
Key words:  lithiumbased ionic liquid  lubricant  frictionreducing  antiwear
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