添加季铵盐离子液体润滑脂的摩擦学性能  

Tribological Properties of Lubricating Grease Adding Quaternary Ammonium Ionic Liquids

作　　者：常君 王泽云[1] CHANG Jun;WANG Zeyun(College of Chemistry and Chemical Engineering, State Key Laboratory of High-Efficiency Utilization ofCoal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China)

机构地区：[1]宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室化学化工学院

出　　处：《石油学报（石油加工）》2019年第3期575-580,共6页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(51465049);宁夏回族自治区国内一流学科建设项目(NXYLXU2017A04)资助

摘　　要：以布洛芬为阴离子、季铵盐为阳离子制备了2种环境友好的季铵盐离子液体——三辛基十四烷基铵布洛芬(N 88814 -Ibu)和三辛基丁基铵布洛芬(N 8884 -Ibu),然后将其添加到PAO10复合锂基润滑脂(G)中,用四球摩擦试验机考察其摩擦学性能。结果表明,上述季铵盐离子液体添加到PAO10复合锂基润滑脂中表现出优异的减摩抗磨性能。N 88814 -Ibu-G的减摩抗磨性能优于N 8884 -Ibu-G,加入的质量分数为3%时,N 8884 -Ibu-G和N 88814 -Ibu-G的减摩抗磨性能最佳。EDS谱分析表明,季铵盐离子液体能够显著地降低摩擦磨损是因为在摩擦副表面形成了含N元素的化学反应膜。Two kinds of environmental-friendly quaternary ammonium ionic liquids,trioctylbutylammonium ibuprofen and trioctyltetradecylammonium ibuprofen,were prepared by using ibuprofen as anions and quaternary ammonium as cations. Then the ionic liquids were added into PAO10 complex lithium grease(G) and the tribological properties were investigated on a four-ball friction tester. The results show that the above quaternary ammonium ionic liquids showed excellent friction reducing and anti-wear properties in PAO10 complex lithium grease. The N 88814 -Ibu-G shows better friction-reducing and anti-wear properties than the N 8884 -Ibu-G. When the mass fraction is 3%, the two kinds of ionic liquids (N 8884 -Ibu-G and N 88814 -Ibu-G) exhibit best performance. EDS spectrum analysis shows that quaternary ammonium ionic liquids can significantly reduce friction and wear because of the formation of chemical reaction film containing N element on the friction surface.

关 键 词：环境友好 季铵盐离子液体 布洛芬 复合锂基润滑脂 

分 类 号：TH117.2[机械工程—机械设计及理论]