Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids
Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids
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原位形成的离子液体显着提高了减摩性和耐磨性
DOI：
10.1039/c2ra20888a
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发表时间：
2012-01-01
期刊：
影响因子：
3.9
通讯作者：
Liu, Weimin
中科院分区：
文献类型：
--
作者：
Fan, Mingjin;Liang, Yongmin;Liu, Weimin
提出了原位合成离子液体润滑油添加剂的新概念。结果发现，可以简单地通过将锂盐（LiX）添加到基础油（PEG）中来获得IL添加剂[Li（PEG）]X。原位形成的离子液体在PEG中具有非常好的溶解性，并表现出优异的减摩和抗磨性能，用于润滑钢/钢接触。摩擦学性能甚至比常规离子液体如1-乙基-3-甲基咪唑四氟硼酸盐（L-B102）、1-甲基-3-己基咪唑六氟磷酸盐（L-P106）和1-乙基-3-甲基咪唑双（三氟甲基磺酰基）酰亚胺（L-F102）的那些更有效。与传统离子液体相比，[Li（PEG）]X具有制备简单、溶解性好、摩擦学性能优异等优点，这无疑将降低离子液体的制备成本，为离子液体的工业化应用提供一种全新的策略。
A new concept of in situ preparing ionic liquid (IL) lubricant additives is described in the present work. It was found that IL additives, [Li(PEG)]X, could be obtained simply by adding lithium salts (LiX) to the base oil (PEG). The in situ formed ILs have extremely good solubility in PEG and exhibit excellent friction-reducing and anti-wear properties for the lubrication of steel/steel contacts. The tribological properties are even more effective than those of conventional ILs such as 1-ethyl-3-methyl imidazolium tetrafluoroborate (L-B102), 1-methyl-3-hexylimidazolium hexafluorophosphate (L-P106) and 1-ethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide (L-F102). The easy preparation, extremely good solubility and excellent tribological properties of [Li(PEG)]X have great advantages as compared with conventional ILs, which will undoubtedly lower the cost of IL preparation and provide a completely new strategy of industrial application of ILs.