Compatibility between Various Ionic Liquids and an Organic Friction Modifier as Lubricant Additives | |
Department | 固体润滑国家重点实验室 |
Li WM(李维民)1; Kumara, Chanaka2; Meyer, Harry M.2; Luo, Huimin3; Qu, Jun2 | |
2018-09-11 | |
Source Publication | Langmuir |
Issue | 34Pages:10711-10720 |
Abstract | Tribological performance of a boundary lubrication contact is largely dominated by the friction modifier (FM) and antiwear (AW) additives in the lubricant. While oil-soluble ionic liquids (ILs) have recently demonstrated promising AW functionality, their compatibility with FMs is little known and even less understood for nonferrous alloys. Here, we report the latest results for several selected ILs when used together with an organic FM (OFM) in lubricating a steel–bronze contact. Depending on the IL chemistry, either synergistic or antagonistic effects were observed. The three aprotic ILs ([P8888][DEHP], [P66614][BTMPP], and [P66614][C17H35COO]) seemed to degrade the OFM’s lubricating performance. In contrast, the protic IL [N888H][DEHP] exhibited a strong synergistic effect with the OFM, yielding an ultralow steady-state friction coefficient (0.02) and a low wear rate (<10–8 mm3/(N m)), which significantly outperformed the IL or the OFM alone. Surface characterization found no chemically reacted tribofilm on the bronze worn surface. On the other hand, a unique physically adsorbed surface film as a result of interconnection between the IL and OFM molecules by hydrogen bonds is proposed on the basis of chemical analysis. Such an adsorption surface film is expected to be difficult to compress vertically but easy to shear horizontally, leading to low friction and wear. |
DOI | 10.1021/acs.langmuir.8b02482 |
If | 3.789 |
Language | 英语 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/24287 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Qu, Jun |
Affiliation | 1.中国科学院兰州化学物理研究所 2.Materials Science & Technology Division 3.Oak Ridge National Laboratory |
Recommended Citation GB/T 7714 | Li WM,Kumara, Chanaka,Meyer, Harry M.,et al. Compatibility between Various Ionic Liquids and an Organic Friction Modifier as Lubricant Additives[J]. Langmuir,2018(34):10711-10720. |
APA | Li WM,Kumara, Chanaka,Meyer, Harry M.,Luo, Huimin,&Qu, Jun.(2018).Compatibility between Various Ionic Liquids and an Organic Friction Modifier as Lubricant Additives.Langmuir(34),10711-10720. |
MLA | Li WM,et al."Compatibility between Various Ionic Liquids and an Organic Friction Modifier as Lubricant Additives".Langmuir .34(2018):10711-10720. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
Li-2018-Compatibilit(736KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment