Relationship between structure and tribological properties of ionic liquids composed of imidazolium cations

被引：0

作者：

Kamimura, Hideto

Chiba, Takeru

Kubo, Tomoo

Nanao, Hidetaka

Minami, Ichiro

Mori, Shigeyuki

机构：

[1] Idemitsu Kosan Co Ltd, Lubricants Res Lab, Ichihara, Chiba 2990107, Japan

[2] Iwate Univ, Dept Chem Engn, Morioka, Iwate 0208551, Japan

来源：

JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS | 2006年 / 51卷 / 11期

关键词：

ionic liquid; imidazolium; boundary lubrication; friction coefficient; tribochemical reaction; TOF-SIMS;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Tribological properties of ionic liquids were evaluated by pendulum and ball on disk tribotesters. Imidazolium cations with different alkyl chain length were used as a lubricant. It was found that friction coefficient decreased with increasing alkyl chain length. Among the ionic liquids examined in the present work, dodecylmethylimidazorium bis(trifluoromethanesulfonyl)imide reduced friction and wear remarkably. Surface analyses of wear track by X-ray Photoelectron Spectroscopy and Time of Flight Secondary Ion Mass Spectroscopy revealed that anions reacted with steel surface and that metal fluoride and sulfate were formed in the wear track. From the results, it can be concluded that the reaction products and chemisorbed cations affected the tribological behavior of the ionic liquids.

引用

页码：826 / 834

页数：9

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