Journal
TRIBOLOGY INTERNATIONAL
Volume 44, Issue 10, Pages 1111-1117Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2011.04.017
Keywords
Ionic liquids; Alkene; Low corrosivity; Lubricity
Categories
Funding
- 973 Program [2007CB607601]
- NSFC [50421502]
- CAS
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In order to improve the lubrication performance and inhibit the serious corrosivity of conventional ionic liquids (ILs) at elevated temperatures, a series of vinyl functionalized ILs were synthesized in this work. The corrosion behavior of the ILs was evaluated with copper sheet corrosion test and their tribological properties were investigated on an Optimol SRV-IV oscillating friction and wear tester at elevated temperatures. The results showed that ILs with vinyl group, such as 1-vinyl-3-butyl imidazolium tetrafluoroborate (VBImBF(4)), can reduce corrosion effectively and its extreme pressure reached up to 1500 N at 150 degrees C. Based on the XPS analysis, ILs with vinyl group could interact with the iron surface and a protecting layer would form on the surface of steel possibly. Thus, ILs lubricants with good lubricating performance and low corrosivity at elevated temperature were achieved. (C) 2011 Elsevier Ltd. All rights reserved.
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