Ultralow Boundary Lubrication Friction by Three-Way Synergistic Interactions among Ionic Liquid, Friction Modifier, and Dispersant | |
Department | 固体润滑国家重点实验室(LSL) |
Li WM(李维民)1; Jun Qu2 | |
The second department | 高端装备润滑组 |
2020-03 | |
Source Publication | ACS APPLIED MATERIALS & INTERFACES |
Volume | 12Issue:14Pages:17077-17090 |
Abstract | Interactions among antiwear additives (AWs), friction modifiers (FMs), and dispersant in a lubricating oil are critical for tribological performance. This study investigates compatibilities of three oil-soluble ionic liquids (ILs, candidate AWs) with an FM, molybdenum dithiocarbamate (MoDTC), and a dispersant, polyisobutene succinimide (PIBSI) under boundary lubrication. Either synergistic or antagonistic effects were observed depending on the IL's chemistry. Adding an aprotic phosphonium-alkylphosphate or phosphonium-alkylphosphinate IL into the oil containing MoDTC and PIBSI had detrimental impact on the friction and wear behavior. PIBSI was found to preferably interact/react with the aprotic IL to lose its ability of suspending MoDTC and to partially consume or even deplete the IL. In contrast, a protic ammonium-alkylphosphate IL seemed to be able to coexist with PIBSI and work synergistically with MoDTC, yielding a sustainable, ultralow boundary friction. A three-stage tribochemical process is proposed to explain how this IL + MoDTC pair interacts with the contact surface to form a chemically reacted, wear-protective tribofilm supporting a physically adsorbed, friction-reducing film on top. This study provides fundamental insights of the compatibilities among three common lubricant components, antiwear, friction modifier, and dispersant, which can be used to guide future lubricant development. |
Keyword | ionic liquids MoDTC ZDDP friction modifier dispersant synergistic effect |
Subject Area | 材料科学其他学科 |
MOST Discipline Catalogue | 工学::机械工程 |
DOI | 10.1021/acsami.0c00980 |
Indexed By | SCI |
If | 8.758 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/26862 |
Collection | 固体润滑国家重点实验室(LSL) |
Affiliation | 1.中国科学院兰州化学物理研究所 2.Oak Ridge Natl Lab, Mat Sci & Technol Div |
Recommended Citation GB/T 7714 | Li WM,Jun Qu. Ultralow Boundary Lubrication Friction by Three-Way Synergistic Interactions among Ionic Liquid, Friction Modifier, and Dispersant[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(14):17077-17090. |
APA | Li WM,&Jun Qu.(2020).Ultralow Boundary Lubrication Friction by Three-Way Synergistic Interactions among Ionic Liquid, Friction Modifier, and Dispersant.ACS APPLIED MATERIALS & INTERFACES,12(14),17077-17090. |
MLA | Li WM,et al."Ultralow Boundary Lubrication Friction by Three-Way Synergistic Interactions among Ionic Liquid, Friction Modifier, and Dispersant".ACS APPLIED MATERIALS & INTERFACES 12.14(2020):17077-17090. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
acsami.0c00980.pdf(1822KB) | 期刊论文 | 作者接受稿 | 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