双咪唑阳离子结构离子液体的高温摩擦学性能研究  

Tribological Performances of Dicationic Ionic Liquids at Elevated Temperature

作　　者：于波[1] 崔逸飞 伍根生 刘志鲁[2] 刘旭庆 陈刚 YU Bo;CUI Yifei;WU Gensheng;LIU Zhilu;LIU Xuqing;CHEN Gang(College of Mechanical and Electric Engineering,Nanjing Forestry University,Jiangsu Nanjing 210037,China;State Key Laboratory of Solid LubricationLanzhou Institute of Chemical and Physics,Chinese Academy of Sciences,Gansu Lanzhou 730000,China;School of Materials,University of Manchester,Manchester M13 9PL,UK;Department of Chemistry,University of Central Florida,Orlando FL 32816,USA)

机构地区：[1]南京林业大学机械电子工程学院,江苏南京210037 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000 [3]曼彻斯特大学材料学院 [4]中佛罗里达大学化学系,美国佛罗里达奥兰多fl32816

出　　处：《摩擦学学报》2018年第5期595-600,共6页Tribology

基　　金：国家自然科学基金项目(51775282);江苏省自然科学基金项目(BK20151519;BK20160935);固体润滑国家重点实验室开放课题项目(LSL-1406);南京林业大学校基金(GXL2014043;CX2016027;201610298044Z)资助~~

摘　　要：合成了含有双咪唑阳离子结构的离子液体1,6-二(3-己基咪唑)亚己基六氟磷酸盐,测定了其黏度和密度;采用钢/锡青铜摩擦副,在SRV摩擦磨损试验机上评价了该离子液体的摩擦磨损性能,并添加苯并三氮唑抑制摩擦过程中的腐蚀作用;采用扫描电子显微镜(SEM)和X射线光电子能谱(XPS)分析锡青铜表面磨斑处的表面形貌和化学状态.结果表明:苯并三氮唑能够抑制双咪唑阳离子六氟磷酸盐的黏着磨损和摩擦腐蚀,摩擦副表面与离子液体在摩擦化学反应中形成含有Cu_2O和CuO的边界润滑膜.Ionic liquid 1,6-bis（3-hexylimidazolium-1 yl） hexylene hexafluorophosphate was synthesized. The kinetic viscosity and mass density of the ionic liquid were determined. The tribological performance of the ionic liquid for steel/Cu-Sn alloy was evaluated on an Optimol SRV oscillating friction and wear tester under ambient conditions.Benzotriazole was used as lubricant additive in ionic liquid to inhibit tribo-corrosion from Ionic liquid 1,6-bis（3-hexylimidazolium-1 yl） hexylene hexafluorophosphate. The worn surfaces on Cu-Sn alloy disc were analyzed by scanning electron microscope（SEM） and X-ray photoelectron spectroscopy（XPS）. SEM results show slight abrasion and tribo-corrosion on the worn surfaces when BTA was used. XPS results indicate boundary lubrication film was composed of Cu2O and CuO by the tribochemical reactions of ionic liquid with Cu-Sn alloy during the sliding process.

关 键 词：离子液体 润滑剂 添加剂 摩擦学性能 

分 类 号：TH117.1[机械工程—机械设计及理论]