等离子体聚合废植物油及其润滑性能

Synthesis and Lubricating Properties of Plasma Polymerized Waste Vegetable Oil

通过氮气和氩气等离子体聚合废植物油(WO)分别得到高黏度聚合油(WPAR和WPN2)。经凝胶渗透色谱(GPC)和1 H-NMR分析可知,WPAR和WPN2主要由单体的二聚体及分子量更高的齐聚物组成,是在等离子体作用下通过双自由基中间体的链增长聚合和Diels-Alder加成反应得到。四球机测试结果表明:WPAR和WPN2的最大无卡咬负荷(PB)分别达到803.6N和1 254.0N,超过了同黏度级别矿物油150BS的承载能力。在测试载荷中WPN2的磨斑直径(WSD)均小于WPAR,显示出优良的抗磨性能。与150BS相比,WPN2展现出较好的减摩性能。

Polymerized oils（WPAR and WPN2）with high viscosity were obtained by argon and nitrogen plasma polymerization of waste vegetable oil（WO）.As shown by GPC and 1 H-NMR analysis,the plasma polymers WPAR and WPN2,which consisted of dimers and higher molecular weight oligomers of WO,were obtained by the chain-growth polymerization of the diradical intermediate and Diels-Alder addition.The results from the four-ball tester demonstrated that the PB values of WPAR and WPN2 reached 803.6Nand 1 254.0N,respectively,both surpassed the load-carrying capacity of mineral oil 150BS with the same viscosity grade.With the same tested loads the wear scar diameters（WSD）of WPN2 were all smaller than those of WPAR,which showed excellent anti-wear ability.Compared to mineral oil 150BS,WPN2showed better friction-reducing performance.