离子液体对WS_(2)纳米润滑油摩擦学性能的影响  

The Influence of Ionic Liquid on Tribological Properties of WS_(2) Nano Lubricating Oil

作　　者：侯献军[1,2] 钱宇聪 江华[1,2] 喻齐凡 HOU Xianjun;QIAN Yucong;JIANG Hua;YU Qifan(Hubei Key Laboratory of Advanced Technology for Automotive Components,Wuhan University of Technology,Wuhan Hubei 430070,China;Hubei Research Center for New Energy&Intelligent Connected Vehicle,Wuhan University of Technology,Wuhan Hubei 430070,China)

机构地区：[1]武汉理工大学,现代汽车零部件技术湖北省重点实验室,湖北武汉430070 [2]武汉理工大学,湖北省新能源与智能网联车工程技术研究中心,湖北武汉430070

出　　处：《润滑与密封》2024年第7期1-8,共8页Lubrication Engineering

基　　金：国家自然科学基金项目(51875423)。

摘　　要：纳米二硫化钨的润滑性能优异,但由于其在润滑油中易团聚沉降,影响了其在润滑油中抗磨减摩性能的发挥。为改善纳米WS_(2)的抗磨减摩性能,将一种磷酸盐离子液体添加到WS_(2)纳米润滑油中,通过四球摩擦试验机对其摩擦学性能进行测试,采用XPS、EDS和电子显微镜等表征方法对钢球磨损表面进行表征。结果表明:虽然添加离子液体后纳米润滑油的摩擦因数略微上升,但相对基础油,离子液体仍可使其摩擦因数最大降低28%,同时能显著地减小磨斑直径,最大降幅达到了44%。离子液体在摩擦过程中与WS_(2)反应生成PW,该物质作为催化剂加速了摩擦过程中的氧化反应,生成的化合物作为化学摩擦膜减少磨损,提升润滑油抗磨减摩性能。Nano tungsten disulfide has excellent lubrication performance,but its easy agglomeration in lubricating oil affects its anti-wear and friction reduction performance.To improve the anti-wear and friction reduction performance of nano WS_(2),a phosphate ionic liquid was added to WS_(2) nano lubricating oil,and its frictional properties were tested using four-ball friction tester.XPS,EDS,and electron microscopy were used to characterize the worn surface of the steel balls.The results show that although the friction coefficient of nano lubricating oil is slightly increased after adding ionic liquid,compared to the base oil,ionic liquids can still reduce the friction coefficient by a maximum of 28%,and can significantly reduce the wear scar diameter,with a maximum reduction of 44%.In the friction process,the ionic liquid reacts with WS_(2) to generate PW,which acts as a catalyst to accelerate the oxidation reaction in the friction process,and the generated compound acts as a chemical friction film to reduce wear and improve the anti-wear and friction reduction performance of lubricating oil.

关 键 词：纳米二硫化钨 离子液体 摩擦学性能 润滑机制 PAO4 

分 类 号：TH117[机械工程—机械设计及理论]