{"title":"Enhanced Lubricating Performance and Conductive Ability of Polyurea Grease by Metal Oxide Modified Tungsten Disulfide Composites","authors":"Wenhao Chen, Yanqiu Xia, Yi Zhang","doi":"10.1007/s11249-025-02006-y","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, Fe<sub>3</sub>O<sub>4</sub>/WS<sub>2</sub> and CuO/WS<sub>2</sub> composites were synthesized via a one-step hydrothermal method, and conductive lubricating greases were formulated using polyurea grease (PUG) as the base. The tribological performance and conductivity of the prepared greases were systematically investigated. The experimental results demonstrate that compared to WS<sub>2</sub> grease, Fe<sub>3</sub>O<sub>4</sub>/WS<sub>2</sub> and CuO/WS<sub>2</sub> greases exhibit superior tribological performance and enhanced conductivity. Fe<sub>3</sub>O<sub>4</sub>/WS<sub>2</sub> and CuO/WS<sub>2</sub> composites can form physically adsorbed films and tribochemical reaction films on frictional surfaces, reducing the COF and wear. Furthermore, they enhance the carrier concentration at the friction interface, thereby improving conductivity and significantly mitigating triboelectric effects. These properties underscore their promising potential for applications in conductive lubrication and electrostatic elimination.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology Letters","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11249-025-02006-y","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, Fe3O4/WS2 and CuO/WS2 composites were synthesized via a one-step hydrothermal method, and conductive lubricating greases were formulated using polyurea grease (PUG) as the base. The tribological performance and conductivity of the prepared greases were systematically investigated. The experimental results demonstrate that compared to WS2 grease, Fe3O4/WS2 and CuO/WS2 greases exhibit superior tribological performance and enhanced conductivity. Fe3O4/WS2 and CuO/WS2 composites can form physically adsorbed films and tribochemical reaction films on frictional surfaces, reducing the COF and wear. Furthermore, they enhance the carrier concentration at the friction interface, thereby improving conductivity and significantly mitigating triboelectric effects. These properties underscore their promising potential for applications in conductive lubrication and electrostatic elimination.
期刊介绍：
Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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