期刊
TRIBOLOGY INTERNATIONAL
卷 107, 期 -, 页码 152-162出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2016.08.027
关键词
Oil-soluble ionic liquids; Lubricating mechanism; External potential; Hydroxylated surface
资金
- National Natural Science Foundation of China [51305428, 51675512, 51227804]
- Natural Science Foundation of Gansu Province [1606RJZA051]
- 973 Program [2013CB632301]
To clarify the lubricating mechanism, two kinds of oil-soluble ionic liquids (ILs) with the same cation but different anions are synthesized, and. then they are added into PAO10 as additives with different mass concentration. The tribological results indicate that the mixtures perform better lubricating performance than neat PAO10 for steel/steel contacts. Then quartz crystal monitor (QCM), X-ray photoelectron spectroscopy (XPS), plasma treatment, and external potential are introduced to clarify the lubricating mechanism of ILs as additives. The lubricating mechanism of the kind of ILs can be attributed to the good adsorptivity of cations and tribochemical films on the sliding surfaces.
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