超声和微波球磨法改性二硫化钼的分散和摩擦学性能  

Dispersion and Tribological Properties of Molybdenum Disulfide Modified by Ultrasonic and Microwave Ball Milling

作　　者：王思远 陈鼎[1,2] 陈耀彤[1] 朱开吉 WANG Si-yuan;CHEN Ding;CHEN Yao-tong;ZHU Kai-ji(College of Materials Science and Engineering,Hunan University,Changsha 410082,China;State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,College of Mechanical and Transportation Engineering,Hunan University,Changsha 410082,China)

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082 [2]湖南大学机械与运载工程学院汽车车身先进设计制造国家重点实验室,湖南长沙410082

出　　处：《稀有金属与硬质合金》2020年第6期46-51,共6页Rare Metals and Cemented Carbides

摘　　要：采用实验室自制的超声球磨和微波球磨设备,以油酸和硬脂酸为表面改性剂,对二硫化钼(MoS2)表面进行修饰,得到了改性MoS2(MMD)。将MMD加入基础油中进行分散和摩擦学性能测试,并对摩擦表面进行了元素分析。结果显示,与目前普遍使用的简单超声法相比,超声和微波球磨法改性得到的MoS2在基础油中具有更稳定的分散性,在摩擦过程中更容易沉积在摩擦表面,与摩擦表面发生摩擦化学反应,形成更完整的摩擦润滑膜,从而实现更优异的减摩抗磨性能。Using laboratory-made ultrasonic and microwave ball milling equipment,molybdenum disulfide(MoS2)was modified by the surface modifiers of oleic acid and stearic acid,and the modified molybdenum disulfide(MMD)was obtained.MMD was introduced into the base oil to test its dispersibility and tribological properties,and then the elements of the friction surface was analyzed.The results show that compared with the simple ultrasound method commonly used at present,the molybdenum disulfide modified by ultrasonic and microwave ball milling has more stable dispersion in the base oil.Besides,in the friction process,MMD is more likely to deposit on the friction surface,and tribochemically react with the friction surface to form a more complete lubrication film,thus achieving more excellent anti-friction and anti-wear performance.

关 键 词：二硫化钼(MoS2) 改性 超声球磨 微波球磨 分散稳定性 摩擦学性能 

分 类 号：TQ136.12[化学工程—无机化工]