Cu nanoparticles decorated WS2 nanosheets as a lubricant additive for enhanced tribological performance

被引：21

作者：

Xu, Zhuang ^{[1
,2
]}

Lou, Wenjing ^{[1
]}

Zhao, Gaging ^{[1
]}

Zheng, Dongdong ^{[1
]}

Hao, Junying ^{[1
]}

Wang, Xiaobo ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

RSC ADVANCES | 2019年 / 9卷 / 14期

关键词：

MICROSTRUCTURE EVOLUTION; SOYBEAN OIL; MOS2; NANOCOMPOSITES; GRAPHENE; MECHANISM; FRICTION; NITRIDE; FACILE;

D O I：

10.1039/c9ra00337a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tungsten disulfide-polydopamine-copper (WS2-PDA-Cu) nanocomposites were first prepared by a green and effective biomimetic strategy and then used as a lubricant additive in polyalkylene glycol (PAG). The biomimetic strategy is inspired by the adhesive proteins in mussels. WS2 nanosheets were decorated by uniformly dispersed Cu nanoparticles (Cu NPs). The WS2-PDA-Cu nanocomposites with good dispersion stability, showed better friction reducing and anti-wear properties than WS2, Cu NPs and WS2-Cu dispersed in PAG base oil. The average friction coefficient and wear volume were reduced by 33.56% and 97.95%, respectively, at 150 degrees C under a load of 100 N for the optimal concentration of 0.9 wt%. The lubrication mechanism was discussed.

引用

页码：7786 / 7794

页数：9

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