Vacuum tribological performance of phosphonium-based ionic liquids as lubricants and lubricant additives of multialkylated cyclopentanes

被引：59
作者：
Zhang, Songwei [1 ,2 ]
Hu, Litian [1 ]
Qiao, Dan [1 ,2 ]
Feng, Dapeng [1 ]
Wang, Haizhong [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2013年 / 66卷
基金：
中国国家自然科学基金;
关键词：
Vacuum; Phosphonium-based ionic liquids; Seizure-like high friction; Additive solubility; POLY(ETHYLENE GLYCOL); ANTIWEAR; CONTACTS; FLUIDS; SPACE; OIL;
D O I：
10.1016/j.triboint.2013.06.012
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The tribological effects of tetraalkylphosphonium phosphate ionic liquids (PP-ILs) as lubricants and lubricant additives of multialkylated cyclopentanes (MACs) was evaluated in vacuum (10(-4) Pa) by a vacuum four-ball tribometer. Results showed that the transient seizure-like high friction appearing for MACs could be effectively eliminated by neat PP-ILs or by adding the PP-ILs with long alkyl chain into MACs. Confirmed by the surface analysis, the improved tribological performances could be ascribed to the high load-carrying capacity of ionic liquids and the protective films formed on the contact surfaces through the tribochemical reaction between the PP-ILs and fresh steel surfaces under the boundary lubrication. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：289 / 295
页数：7
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