Journal
TRIBOLOGY INTERNATIONAL
Volume 153, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2020.106602
Keywords
Functionalized ionic liquids; Additives; Tribological performance; Lubrication mechanism
Categories
Funding
- National Key Research and Development Program of China [2018YFB0703802]
- National Natural Science Foundation of China [51705504, 51675512, 21972153]
- China Postdoctoral Science Foundation Funded Project [2019M653798]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2018454]
- Gansu Province Science and Technology Plan [18ZD2WA011]
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A novel ionic liquid as a lubricant additive was synthesized and shown to significantly improve the tribological properties of glycerol system. Analysis of the wear scar surface revealed the excellent lubricating mechanism of the additive.
A urea-functionalized imidazolium-organophosphate ionic liquid (M-16-EDHPA) was synthesized and investigated its tribological performance as a lubricant additive for glycerol. We performed solubility test and thermogravimetric analysis of neat samples. Research results demonstrate that adding 1.0% urea-M-16-EDHPA can improve the tribological properties of glycerol system. Wear scar surface was analyzed using SEM, EDS, XPS and TOF-SIMS to study the lubricating mechanism of M-16-EDHPA additive. The formation of a dense and stable boundary film composed of a mixed adsorption layer and a composite tribo-film is the reason for the excellent lubricity and wear resistance of M-16-EDHPA.
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