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Lithium-based ionic liquids functionalized by sym-triazine and cyclotriphosphazene as high temperature lubricants.
- Source :
-
Tribology International . Feb2014, Vol. 70, p136-141. 6p. - Publication Year :
- 2014
-
Abstract
- Abstract: Two kinds of lithium-based and sym-triazine- or cyclotriphosphazene-functionalized ionic liquids (ILs, L-C3N3 and L-P3N3) were synthesized by simply blending an appropriate molar ratio of lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) with tri(methoxyethoxyethoxyethoxy)triazine (C3N3(OR)3) or hexa(methoxyethoxyethoxyethoxy) cyclotriphosphazene (P3N3(OR)6). The ILs were evaluated as high temperature lubricants for Si3N4/steel contact and found to have significantly improved friction–reducing and anti-wear proprieties compared with conventional alkylimidazolium ILs, 1-ethyl-3-methylimidazolium bis(trifluoro methylsulfonyl)imide (L-F102) and 1-butyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide (L-F104), at some condition. The morphologies of the worn surfaces were analyzed by scanning electron microscope (SEM). The wear mechanisms were discussed according to the surface composition analysis by X-ray photoelectron spectroscopy (XPS). [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0301679X
- Volume :
- 70
- Database :
- Academic Search Index
- Journal :
- Tribology International
- Publication Type :
- Academic Journal
- Accession number :
- 92516429
- Full Text :
- https://doi.org/10.1016/j.triboint.2013.09.025