Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 2, Pages 467-471Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am800132z
Keywords
friction; antiwear; additive; ionic liquid; tribology
Funding
- 973 Program [2007CB607601]
- NSFC [50721602]
- Chinese Academy of Sciences
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Bismidazolium ionic liquids [C-10(m(2)im)(2) (NTf2)(2) C-10(m(2)im)(2) (PF6)(2) and C-10(m(2)im)(2) (BF4)(2)] with different anions were evaluated as the antiwear additives in poly(ethylene glycol) at room temperature. Results showed that they could effectively reduce the friction and wear of sliding pairs compared with the cases without these additives. Especially C-10(m(2)im)(2) (NTf2)(2) showed better antiwear properties with an optimum concentration of 3 wt % by which a significant improvement of its antiwear property by dozens of times with respect to the base oil was achieved. The excellent tribolocial properties are attributed to the formation of high-quality physical adsorption films and tribochemical product during friction and the good miscibility of ionic liquids with base oil.
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