Preparation of WS2 nanocomposites via mussel-inspired chemistry and their enhanced dispersion stability and tribological performance in polyalkylene glycol | |
Department | 固体润滑国家重点实验室 |
Xu Z(徐状)1,2; Lou WJ(娄文静)1; Zhao GQ(赵改青)1; Zhao Q(赵勤)1; Xu N(徐楠)1; Hao JY(郝俊英)1; Wang XB(王晓波)1 | |
The second department | 高端装备润滑组 |
2019 | |
Source Publication | Journal of Dispersion Science and Technology |
Volume | 40Issue:5Pages:737-744 |
Abstract | A novel biomimetic surface modification method utilizing mussel-inspired chemistry was used to prepare tungsten disulfide (WS2) nanocomposites, which enhanced the dispersion stability and tribological performance of WS2 in polyalkylene glycol (PAG). Herein, WS2- polydopaminemethoxypolyethylene glycol amine (WS2-PDA-MPGA) was first synthesized via mussel-inspired chemistry and used as a lubricant additive in PAG. After modification, the dispersion stability of WS2 nanosheets in PAG was obviously improved. Moreover, the tribological performance of WS2-PDA-MPGA in PAG at high temperature was evaluated by the oscillating reciprocating tribometer. Compared to pure PAG, the lubricant composition containing WS2-PDA-MPGA exhibited excellent performance in friction reduction and anti-wear properties at high temperature. The optimal tribological performance could be obtained when the percentage of additives was 0.9 wt%. The tribological results indicate that WS2-PDA-MPGA, with its good dispersion stability, has better friction reduction and anti-wear properties than does WS2 in PAG base oil. The chemical composition analysis of the wear surface indicated that a stable protective film had been formed by physical adsorption and tribo-chemical reactions. Therefore, the surface modification strategy is an effective way to improve the dispersion stability of WS2 in PAG, which can be expanded application of WS2 in the tribological field. |
Keyword | WS2 nanocomposites Mussel inspired chemistry Dispersion Tribological performance |
MOST Discipline Catalogue | 工学::材料科学与工程(可授工学、理学学位) |
If | 1.479 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/25507 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang XB(王晓波) |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2.University of Chinese Academy of Sciences, Beijing 100049, PR China |
Recommended Citation GB/T 7714 | Xu Z,Lou WJ,Zhao GQ,et al. Preparation of WS2 nanocomposites via mussel-inspired chemistry and their enhanced dispersion stability and tribological performance in polyalkylene glycol[J]. Journal of Dispersion Science and Technology,2019,40(5):737-744. |
APA | Xu Z.,Lou WJ.,Zhao GQ.,Zhao Q.,Xu N.,...&Wang XB.(2019).Preparation of WS2 nanocomposites via mussel-inspired chemistry and their enhanced dispersion stability and tribological performance in polyalkylene glycol.Journal of Dispersion Science and Technology,40(5),737-744. |
MLA | Xu Z,et al."Preparation of WS2 nanocomposites via mussel-inspired chemistry and their enhanced dispersion stability and tribological performance in polyalkylene glycol".Journal of Dispersion Science and Technology 40.5(2019):737-744. |
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