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Issue 17, 2012
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Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids

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Abstract

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.

Graphical abstract: Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids

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Publication details

The article was received on 09 May 2012, accepted on 14 May 2012 and first published on 28 Jun 2012


Article type: Paper
DOI: 10.1039/C2RA20888A
Citation: RSC Adv., 2012,2, 6824-6830

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    Dramatically improved friction reduction and wear resistance by in situ formed ionic liquids

    M. Fan, Y. Liang, F. Zhou and W. Liu, RSC Adv., 2012, 2, 6824
    DOI: 10.1039/C2RA20888A

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