椰油酰胺聚氧乙烯醚水溶液的摩擦学性能研究  

Tribological Properties of Cocamide Polyoxyethylene Aqueous Solutions

作　　者：谷国平[1] 张朝辉[1] 丁晓峰[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《摩擦学学报》2015年第3期266-273,共8页Tribology

摘　　要：本研究中选取椰油酰胺聚氧乙烯醚(Cocamide-POE)作为水基润滑液的基础添加剂进行摩擦学性能研究.首先利用NGY-6型纳米级膜厚测量仪对Cocamide-POE水溶液的成膜性能进行了测试,结果表明CocamidePOE的加入提高了纯水的成膜能力,其膜厚随着线速度的增大而逐渐增加,与浓度关系并不明显.然后利用四球试验机对Cocamide-POE水溶液的摩擦磨损性能、稳定性能和极压性能进行了研究,并利用三维形貌仪对钢球表面磨痕的三维形貌进行了分析,试验结果表明Cocamide-POE水溶液具有良好的减摩抗磨性能,且添加剂质量百分数为3%的Cocamide-POE水溶液最大无卡咬负荷(PB)值达到784~834 N.总的来说,Cocamide-POE具有非常好的工业应用前景.Polyether additives are an important branch of water- based lubricants. In this research,cocamide polyoxyethylene( Cocamide- POE) is selected as the additive of water- based lubricants to improve tribological properties of pure water. Firstly,film- forming property is analyzed by NGY- 6 nano scale film thickness measuring instrument.Results indicate that its film- forming ability has a substantial improvement over pure water and the film thickness increases with the line speed increasing,but has no significant relationship with the concentration. Then anti- friction,anti- wear,extreme pressure and stability performances are studied with the help of MRS- 10 A four- ball tester. The 3D surface topography of the ball wear scar is studied by micro XAM interferometric surface profile. The results show that Cocamide-POE aqueous solutions have a good anti- friction and anti- wear property,and the seizure( PB) value of the Cocamide-POE aqueous solutions( 3%) is between 784 N and 834 N,which is larger than conventional polyether additives. Overall,Cocamide- POE is a kind of environment- friendly additive of water- based lubricants with good prospects.

关 键 词：水基润滑液 椰油酰胺聚氧乙烯醚(Cocamide-POE) 成膜性能 摩擦磨损 

分 类 号：TH117.22[机械工程—机械设计及理论]