丙二醇无规聚醚与油酸三乙醇胺水溶液的摩擦学性能

摘要

选取丙二醇无规聚醚(PPE)和油酸三乙醇胺(TO)作为水基润滑改性剂,研究PPE和PPE与TO(PPE-TO)混合水溶液的摩擦学性能.利用NGY-6型纳米级膜厚测量仪对2种水溶液成膜性能进行分析,结果表明2种水溶液均具有较好的成膜能力.利用四球试验机对水溶液进行摩擦磨损性能、极压性能和稳定性能分析,使用三维形貌仪对钢球表面磨斑进行分析.结果表明:PPE和PPE-TO 2种水溶液均具有良好的减摩抗磨性能,TO的加入使得PPE水溶液减摩抗磨性能进一步提高,最大无卡咬负荷有所增大,极压性能提高.总体而言,PPE和TO协同效果较好,应用前景良好.%Propanediolpoly ethers (PPE) and triethanolamineoleate (TO) were selected as the additives of water-based lubricant so as to improve the tribological properties.The film-forming property of PPE aqueous solution and the mixed aqueous solution of PPE and TO was analyzed by nano scale film thickness measuring instrument of NGY-6.Results indicate that both aqueous solutions exhibit good film-forming abilities.The anti-wear and friction reducing,extreme pressure,and stability performances were studied with the help of four-ball tribometry,the wear scar diameter of the steel balls was measured,and the steel ball surfaces were analyzed by 3D surface topography instrument.Results show that both of the two kinds of aqueous solutions have good performances in anti-wear and friction reducing.The tribological behaviors of PPE aqueous solution are further improved by the inclusion of TO,the non-seizure load is raised and the extreme pressure performance are also inproved.Overall,PPE and TO additives have a good synergistic effect in lubrication,which have good prospect in engineering application.