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YU Bo, CUI Yifei, WU Gensheng, LIU Zhilu, LIU Xuqing, CHEN Gang. Tribological Performances of Dicationic Ionic Liquids at Elevated Temperature[J]. TRIBOLOGY, 2018, 38(5): 595-600. DOI: 10.16078/j.tribology.2018.05.013
Citation: YU Bo, CUI Yifei, WU Gensheng, LIU Zhilu, LIU Xuqing, CHEN Gang. Tribological Performances of Dicationic Ionic Liquids at Elevated Temperature[J]. TRIBOLOGY, 2018, 38(5): 595-600. DOI: 10.16078/j.tribology.2018.05.013
shu

Tribological Performances of Dicationic Ionic Liquids at Elevated Temperature

  • 1.

    College of Mechanical and Electric Engineering, Nanjing Forestry University, Jiangsu Nanjing 210037, China

  • 2.

    State Key Laboratory of Solid Lubrication，Lanzhou Institute of Chemical and Physics, Chinese Academy of Sciences, Gansu Lanzhou 730000, China

  • 3.

    School of Materials, University of Manchester, Manchester M13 9PL, UK

  • 4.

    Department of Chemistry, University of Central Florida, Orlando FL 32816, USA

Funds: The project was supported by the National Natural Science Foundation of China (51775282), the Natural Science Foundation of Jiangsu Province (BK20151519, BK20160935), Opening Foundation of the State Key Laboratory of Solid Lubrication (LSL-1406) and Nanjing Forestry University Foundation (GXL2014043, CX2016027, 201610298044Z)
More Information
  • Corresponding author:

    YU Bo, E-mail: boyu@njfu.edu.cn, Tel: +86-25-85427795

  • Received Date: May 13, 2018
  • Revised Date: July 06, 2018
  • Accepted Date: August 09, 2018
  • Available Online: August 26, 2018
  • Published Date: September 27, 2018
    Graphical Abstract
    • Abstract
  • Ionic liquid 1, 6-bis (3-hexylimidazolium-1yl) hexylene hexafluorophosphate was synthesized. The kinetic viscosity and mass density of the ionic liquid were determined. The tribological performance of the ionic liquid for steel/Cu-Sn alloy was evaluated on an Optimol SRV oscillating friction and wear tester under ambient conditions. Benzotriazole was used as lubricant additive in ionic liquid to inhibit tribo-corrosion from Ionic liquid 1, 6-bis (3-hexylimidazolium-1yl) hexylene hexafluorophosphate . The worn surfaces on Cu-Sn alloy disc were analyzed by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). SEM results show slight abrasion and tribo-corrosion on the worn surfaces when BTA was used. XPS results indicate boundary lubrication film was composed of Cu2O and CuO by the tribochemical reactions of ionic liquid with Cu-Sn alloy during the sliding process.
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