期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 342, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.molliq.2021.117371
关键词
Gallate ionic liquid; Lubricant; Tribological property
资金
- scientific and technological project in Shaanxi [2021GY-157]
- open project of State Key Laboratory of Solid Lubrication [LSL-1812]
The study demonstrates that GAILs exhibit excellent lubricating properties, including better viscosity-temperature characteristics, corrosiveness, and hydrolytic stability, for copper and aluminum friction counterfaces, while traditional halogen-containing ILs are not suitable for these counterfaces.
In this study, four kinds of GAILs were prepared and used to lubricate copper and aluminum friction counterfaces. Their physicochemical and tribological properties were systematically investigated. The results showed that the GAILs have better performances with regard to viscosity-temperature characteristic, corrosiveness and hydrolytic stability as compared with the two traditional halogen-containing IL lubricants L-B104 and L-F104. Moreover, the most prominent nature of the GAILs are their excellent friction reduction and wear resistance properties as lubricants for copper and aluminum friction counterfaces, while traditional halogen-containing ILs are generally found to be unsuitable for lubricating these counterfaces. The excellent tribological properties of the GAILs are conjectured to be largely attributed to the physical/chemical adsorbed films formed by the GAIL molecules on the friction surfaces, which is further verified by QCM and XPS analysis results. (C) 2021 Elsevier B.V. All rights reserved.
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