Room temperature ionic liquid 1-ethyl-3-hexylimidazolium-bis(trifluoromethylsulfonyl)-imide as lubricant for steel-steel contact
Room temperature ionic liquid 1-ethyl-3-hexylimidazolium-bis(trifluoromethylsulfonyl)-imide as lubricant for steel-steel contact
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室温离子液体1-乙基-3-己基咪唑鎓-双(三氟甲基磺酰基)-酰亚胺作为钢-钢接触润滑剂
DOI：
10.1016/j.triboint.2003.12.003
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发表时间：
2004-07-01
影响因子：
6.2
通讯作者：
Xue, QJ
中科院分区：
文献类型：
--
作者：
Lu, QM;Wang, HZ;Xue, QJ
合成了1-乙基-3-己基咪唑双（三氟甲基磺酰基）酰亚胺离子液体，并对其作为钢/钢接触润滑剂的性能进行了评价。在Optimol SRV振动摩擦磨损试验机上考察了该离子液体作为润滑剂的摩擦学性能。合成的离子液体表现出优异的摩擦学性能，其抗磨性能和承载能力均上级烷基咪唑四氟硼酸盐离子液体以及常规高温润滑剂X-1 P和PFPE。利用扫描电子显微镜（SEM/EDS）和X射线光电子能谱仪（XPS）对界面膜的元素组成和化学性质进行了分析，XPS结果表明，在摩擦过程中，离子液体与铁在摩擦表面发生了复杂的摩擦化学反应，生成了FeS，有机氟化物、无机氟化物等。（C）2003 Elsevier Ltd.保留所有权利。
The ionic liquid 1-ethyl-3-hexylimidazolium-bis(trifluoromethylsulfonyl)-imide was synthesized and evaluated as lubricant for the contact of steel/steel. The tribological properties of the ionic liquid as lubricant were investigated on an Optimol SRV oscillating friction and wear tester in ambient condition. The synthetic ionic liquid shows excellent tribological performance and is superior to the ionic liquid of alkylimidazolium tetrafluoroborate and the conventional high temperature lubricants X-1P and PFPE in terms of antiwear performance and load-carrying capacity. The elemental composition and chemical nature of the boundary film generated on the steel surface were analyzed on a scanning electron microscope with a Kevex energy dispersive X-ray analyzer attachment (SEM/EDS) and X-ray photoelectron spectrometer (XPS), and the XPS results indicate the occurrence of a complicated tribochemical reaction of ionic liquid with iron on the rubbing surface during the sliding process, with the formation of FeS, organic fluoride, inorganic fluoride, etc. (C) 2003 Elsevier Ltd. All rights reserved.