一种噻二唑衍生物在加氢油中的摩擦学性能研究  

Study on Tribological Performance of Thiadiazole Derivative in Hydrogenated Oil

作　　者：刘坚[1] 熊丽萍[1] 卢慧[1] 刘红[1] 何忠义[1] 

机构地区：[1]华东交通大学理学院,江西南昌330013

出　　处：《华东交通大学学报》2016年第2期134-138,共5页Journal of East China Jiaotong University

基　　金：国家自然科学基金项目(21363008);江西省自然科学基金项目(20142BAB203015)

摘　　要：利用四球摩擦磨损试验机评价了合成的5-甲基硫基-2-(2’-羟基-3’-正辛基黄原酸基)-丙基硫基-1,3,4-噻二唑(OMP)作为润滑添加剂在加氢油5 Cst中的摩擦学性能,测试结果显示所合成的噻二唑衍生物能够有效提高5 Cst基础油的摩擦学性能,并且在其添加浓度为2.0 wt%时,能提高基础油极压值的2.7倍,降低基础油磨斑直径30%和减少摩擦系数20%,减摩性能均随着添加剂OMP浓度的增加而增加。通过扫描电镜(SEM)分析了摩擦后钢球表面形貌及元素分布,发现添加剂中所含的活性N,S元素在摩擦过程中形成的含硫、氮和氧的边界膜是添加剂具有良好的摩擦学性能的主要原因。The tribological performance of synthesized 5-methylthio-2-（2’- hydroxyl-3’-octyl xanthate-yl-propyl-thio-1,3,4-thiadiazole （OMP） was investigated by the four-ball tester in hydrogenated oil 5 Cst. Test re-sults show that the synthesized thiadiazole derivative can effectively improve the tribological properties of 5 Cst, and it can increase the PB value by 2.7 times, and decrease 30% WSD and 20% friction coefficient of base oil when the OMP concentration is 2.0 wt%. Along with the OMP concentration increasing, the extreme pressure, antiwear and friction-reducing performance increases when the OMP concentration is below 2.0 wt%. The sur-face morphology and element distribution of worn steel ball surface were analyzed by using scanning electron mi-croscopy （SEM）, and it found out that the S and N elements in thiadiazole formed the boundary film containing S, O, N elements during the tribological process, and it is the main reason for OMP to possess the good tribological performance.

关 键 词：噻二唑衍生物 加氢油 摩擦学性能 

分 类 号：TH117.3[机械工程—机械设计及理论]