表面修饰纳米CeO_2的摩擦学研究  

Tribology Study of Surface-modified Nano-CeO_2

作　　者：何忠义[1,2] 王俊肖[1] 熊丽萍[1] 吴冯[1] 

机构地区：[1]华东交通大学基础科学学院,江西南昌330013 [2]兰州润滑油研究开发中心,甘肃兰州730060

出　　处：《稀土》2013年第1期7-10,共4页Chinese Rare Earths

基　　金：国家自然科学基金项目(21163006);江西省自然科学基金项目(20122BAB203011)

摘　　要：研究了表面修饰的纳米CeO2的摩擦学性能。以溶胶-凝胶法制得纳米CeO2,并使用本实验室制得的苯并三氮唑乙酸对其进行表面修饰。采用多种测试技术对表面修饰的CeO2颗粒进行表征,并在MRS-10A四球极压抗磨损试验机上测试了其抗磨性能。结果表明,表面修饰的纳米CeO2颗粒可很好地分散于菜籽油中,作为添加剂,具有较好的抗磨效果,在392 N载荷下磨斑直径减小了11.1%,较高载荷摩擦环境更适合其抗磨性能的发挥,具有重要的推广应用前景。The tribological properties of the modified nano - CeO2 were studied in this paper. The benzotriazole acetic acid was synthesized and used as the surface modifier to modify the nano - CeO2 particles synthesized by sol - gel method. Some analytical tools were used to characterize the structure and properties of surface - modified nano - CeO2 particles . The abrasion resistance was tested by MRS - 10A four - ball taster. The results showed that the surface-modified nano - CeO2 par- ticles had good decentralization in rapeseed oil, could enhance abrasion resistance of lubricating oil and had better wear re. suits. WSD was decreased 11.1% in the load of 392 N,which indicated that the modified none-CeO2 was much more suitable for playing the anti -wear performance in the higher load , so it has a bright application prospect.

关 键 词：纳米CEO2 表面修饰 润滑油添加剂 抗磨性能 

分 类 号：TH117.2[机械工程—机械设计及理论]