Influence of concentration and anion alkyl chain length on tribological properties of imidazolium sulfate ionic liquids as additives to glycerol in steel-steel contact lubrication

被引：70

作者：

Pejakovic, V. ^{[1
,2
]}

Tomastik, C. ^{[1
]}

Doerr, N. ^{[1
]}

Kalin, M. ^{[2
]}

机构：

[1] AC2T Res GmbH, Viktor Kaplan Str 2C, A-2700 Wiener Neustadt, Austria

[2] Univ Ljubljana, Lab Tribol & Interface Nanotechnol, Ljubljana 61000, Slovenia

来源：

TRIBOLOGY INTERNATIONAL | 2016年 / 97卷

关键词：

Ionic liquids; AFM; XPS; Turbidity; POLYETHYLENE-GLYCOL; ALUMINUM CONTACTS; PERFORMANCE; POLYFLUOROALKYL; BEHAVIOR;

D O I：

10.1016/j.triboint.2016.01.034

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Commercially available ionic liquids were used as additives in the model lubricant fluid glycerol. The stability of the mixtures was controlled by measuring of turbidity. Tribological experiments have been performed on a reciprocating sliding tribometer in the boundary lubrication regime with three ionic liquid concentrations, as well as with neat glycerol and the neat ionic liquids at 100 degrees C. Wear and friction were measured, and the worn surfaces were examined with optical microscopy, atomic force microscopy and X-ray photoelectron spectroscopy. The results show the influence of the ionic liquid concentration and the anion alkyl chain length on the tribological behavior. Significant improvement in friction and wear reduction at low ionic liquid concentrations was detected and attributed to sulfur species in tribofilm. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：234 / 243

页数：10

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