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Physicochemical and tribological properties of gemini-type halogen-free dicationic ionic liquids
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- Yu, Qiangliang (author)
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China. Lubricating Oil Key Laboratory of Petro China, Lanzhou Lubricating Oil Research & Development Institute of Petro China, Lanzhou, China
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- Zhang, Chaoyang (author)
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
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- Dong, Rui (author)
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
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- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China Lubricating Oil Key Laboratory of Petro China, Lanzhou Lubricating Oil Research & Development Institute of Petro China, Lanzhou, China State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China (creator_code:org_t)
- 2020-07-15
- 2021
- English.
- In: Friction. - : Springer. - 2223-7690 .- 2223-7704. ; 9:2, s. 344-355
- Journal article (peer-reviewed)
Abstract
Subject headings
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- A series of new halogen-free dicationic ionic liquids (ILs) with different alkyl chain lengths were prepared, and the relationship between the alkyl chain length, physicochemical and tribological properties of ILs, and their role as neat lubricant for steel-steel friction pairs, was investigated. Evaluation of stability during hydrolysis and copper strip corrosion test results show that synthetic ILs are stable and not corrosive to metal contacts, due to the halogen-free anions. The friction and wear test results indicate that ILs with long alkyl chains have excellent friction-reducing and anti-wear properties, especially at high temperatures. Based on the surface three-dimensional (3D) profiles, electrical contact resistance, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and the X-ray photoelectron spectrometry (XPS) analysis of the worn surfaces of steel discs, we can conclude that the efficiency of ILs is due to the formation of high quality tribofilms that consist of both tribochemical reaction and ordered absorption films.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Tribologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Tribology (hsv//eng)
Keyword
- halogen-free
- dicationic ionic liquids (ILs)
- lubricant
- tribofilm
- Machine Elements
- Maskinelement
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
- Yu, Qiangliang
- Zhang, Chaoyang
- Dong, Rui
- Shi, Yijun
- Wang, Yurong
- Bai, Yanyan
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- Zhang, Jiaying
- Cai, Meirong
- Zhou, Feng
- Liu, Weimin
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- About the subject
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- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Mechanical Engin ...
- and Tribology
- Articles in the publication
- Friction
- By the university
- Luleå University of Technology
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