| Tribological Behavior of Protic Ionic Liquids with Dodecylamine Salts of Dialkyldithiocarbamate as Additives in Lithium Complex Grease | |
| Department | 固体润滑国家重点实验室 |
Zhao Q(赵勤)1,2 ; Zhao GQ(赵改青)1; Zhang M(张明)1; Wang XB(王晓波)1; Liu WM(刘维民)1; Wang XB(王晓波)
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| 2012 | |
| Source Publication | Tribology letters
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| ISSN | 1023-8883 |
| Volume | 48Issue:2Pages:133-144 |
| Abstract | Three kinds of protic ionic liquids with ammonium salts, dodecylamine salt of S-(1-carboxyl)-propyl-N, N-diethyldithiocarbamate (coded as DDED), dodecylamine salt of S-(1-carboxyl)-propyl-N, N-dibutyldithiocarbamate (coded as DDBD), dodecylamine salt of S-(1-carboxyl)-propyl-N, N-dioctyldithiocarbamate (coded as DDOD) were synthesized, characterized, and their tribological behaviors as additives in lithium complex grease were studied for steel/steel contact. The tribological properties were evaluated on an Optimol SRV-I oscillating reciprocating friction and wear tester and a MRS-10A lever-type fourball tester in details. The results of tests demonstrated that the novel additives were able to remarkably improve the extreme pressure, friction-reducing, and anti-wear properties of the base lithium complex grease when added at a low adding concentration (< 3 %). Based on the performance comparison of three novel additives with different chain lengths in DTCs groups and a commercial additive with similar DTCs groups but no PILs groups, methylene bis dibutyldithiocarbamate (T323), a number of primary conclusions were drawn. The carboxylic acid ammonium salts, the typical function groups of the PILs existing in the molecule structures of three additives, could not only greatly enhance the physical and/or chemical adsorption on the metal surface to reduce friction of the base grease, and also have better synergism with DTCs groups in improving anti-wear performance of base grease. Based on the characterization and analysis of the worn surface by a PHI-5702 multifunctional X-ray photoelectron spectrometer (XPS) and a JSM-5600LV scanning electron microscope (SEM), a protective film consisting of FeS, organic compound was formed on the surface. The ordered adsorbed film and chemical reactive film on the sliding steels contributed to the main factor in improving the tribological properties of base lithium complex grease. |
| Keyword | Protic Ionic Liquids With Ammonium Salts Lithium Complex Grease Additives Tribological Behavior |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1007/s11249-012-0011-z |
| Funding Organization | the National 973 Program of China (Grant No. 2011CB706603) |
| Indexed By | SCI |
| If | 1.743 |
| Language | 英语 |
| Funding Project | 工业润滑研究组;空间润滑材料组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3500 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Wang XB(王晓波) |
| Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao Q,Zhao GQ,Zhang M,et al. Tribological Behavior of Protic Ionic Liquids with Dodecylamine Salts of Dialkyldithiocarbamate as Additives in Lithium Complex Grease[J]. Tribology letters,2012,48(2):133-144. |
| APA | Zhao Q,Zhao GQ,Zhang M,Wang XB,Liu WM,&王晓波.(2012).Tribological Behavior of Protic Ionic Liquids with Dodecylamine Salts of Dialkyldithiocarbamate as Additives in Lithium Complex Grease.Tribology letters,48(2),133-144. |
| MLA | Zhao Q,et al."Tribological Behavior of Protic Ionic Liquids with Dodecylamine Salts of Dialkyldithiocarbamate as Additives in Lithium Complex Grease".Tribology letters 48.2(2012):133-144. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 133-144.PDF（738KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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