椰油酰胺聚氧乙烯醚水溶液的摩擦学性能研究

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.

Tribological Properties of Cocamide Polyoxyethylene Aqueous Solutions

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-10A 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 (P_B) 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.