Capillary electroosmosis properties of water lubricants with different electroosmotic additives under a steel-on-steel sliding interface
Capillary electroosmosis properties of water lubricants with different electroosmotic additives under a steel-on-steel sliding interface
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不同电渗添加剂水润滑剂在钢-钢滑动界面下的毛细管电渗性能
DOI：
10.1007/s40544-021-0507-3
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发表时间：
2021-08-12
期刊：
影响因子：
6.8
通讯作者：
Xu, Xuefeng
中科院分区：
文献类型：
--
作者：
Feng, Bohua;Luan, Zhiqiang;Xu, Xuefeng
润滑剂渗透到摩擦界面的过程尚未完全建立，因此损害了其摩擦学性能。在这项研究中，使用钢对钢摩擦副研究了含有电渗抑制剂（十六烷基三甲基溴化铵（CTAB））和电渗促进剂（月桂亚氨基二丙酸钠（SLI））的去离子水（DI水）的渗透特性。结果表明，含有电渗促进剂的润滑剂降低了摩擦系数和磨痕直径，而含有电渗抑制剂的润滑剂与去离子水相比表现出相反的行为。 SLI的添加促进了去离子水溶液的渗透，从而导致在滑动表面形成厚厚的氧化铁润滑膜。这有效地减少了磨损损伤，从而降低了摩擦系数和磨损量。
The process of lubricant penetration into frictional interfaces has not been fully established, hence compromising their tribological performance. In this study, the penetration characteristics of deionized water (DI water) containing an electroosmotic suppressant (cetyltrimethylammonium bromide (CTAB)) and an electroosmotic promoter (sodium lauriminodipropionate (SLI)), were investigated using steel-on-steel friction pairs. The results indicated that the lubricant with electroosmotic promoter reduced the coefficient of friction and wear scar diameter, whereas that with an electroosmotic suppressant exhibited an opposite behavior compared with DI water. The addition of SLI promoted the penetration of the DI water solution, thus resulting in the formation of a thick lubricating film of iron oxide at the sliding surface. This effectively reduced the abrasion damage, leading to a lower coefficient of friction and wear loss.