期刊
FRICTION
卷 7, 期 3, 页码 282-288出版社
SPRINGEROPEN
DOI: 10.1007/s40544-018-0231-9
关键词
ionic liquid; additive; friction; wear; polar oil
资金
- Foundation for the Promotion in Asturias of the Applied Scientific Research and Technology (FICYT) [GRUPIN14-023, DPI2013-48348-C2-1-R]
- Ministry of Economy and Competitiveness (Spain) [GRUPIN14-023, DPI2013-48348-C2-1-R]
The ionic liquid (IL) tributylmethylammonium bis(trifluoromethylsulfonyl)amide ([N-4441][NTf2]) was used as neat lubricant and as an additive (1.5 wt%) in a polar oil to study its friction and wear reducing properties. Tribological tests were completed for 90 minutes at room temperature and 100 degrees C in a reciprocating configuration at loads of 30 and 70 N, 10 Hz-frequency, and 4 mm stroke length. Wear volume was measured by confocal microscopy and the surface-IL interaction determined by XPS. The main findings were that neat IL showed the best tribological behavior; the IL-containing mixture behaved similar to the base oil regarding friction, however outperformed the antiwear behavior of the base oil under higher temperature; surface-IL chemical interaction was found mainly at 100 degrees C.
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