黄原酸乙酰苯胺衍生物的合成及其摩擦学性能  

SYNTHESIS AND TRIBOLOGICAL PROPERTIES OF XANTHOGENATE ACETANILIDE DERIVATIVES

作　　者：刘艳丽[1] 赵鸿斌[2] 刘仁德[3] 

机构地区：[1]湖南工程学院,湘潭411104 [2]东莞理工学院化学生物工程系 [3]上海宝钢工业检测公司

出　　处：《石油炼制与化工》2009年第12期52-56,共5页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金(5005018);湖南省科技攻关(03GKY30301);东莞市科研发展专项基金(2006D041)资助项目

摘　　要：采用乙基黄原酸钠与氯代乙酰苯胺衍生物进行反应,合成3种乙基黄原酸乙酰苯胺衍生物新型无灰无磷润滑油添加剂,这3种添加剂均能溶于大部分有机溶剂而难溶于水,在液体石蜡中溶解性能良好。采用~1H NMR,^(13)C NMR,IR,UV,MS和元素分析法确证其结构。采用热重分析评价其热稳定性,结果表明,3种添加剂初始分解温度均高于260℃,能满足一般工况条件的要求。利用四球摩擦磨损试验机考察其在液体石蜡中的极压性能和抗磨性能,结果表明,这3种添加剂添加到液体石蜡中均表现出较高的承载能力和良好的抗磨性能,其中添加乙基黄原酸-N-对氯乙酰苯胺时极压性能最好,而抗磨性能较差;添加乙基黄原酸-N-对甲氧基乙酰苯胺时极压和抗磨性能均较好。Three xanthogenate derivatives（2a,2b,2c）were synthesized by reacting xanthogenate with acetanilide derivatives and they were supposed to be used as ashless non-phosphorus lube additives. Their structures and properties were determined by ^1H NMR,^13C NMR, FT-IR, UV, MS and elemental analysis. It was found that these derivatives were oil-soluble and non-water-soluble, thus they could be well soluble in liquid paraffin. The thermal stability of these derivatives was investigated with a thermogravimetric apparatus and their initial thermal decomposed temperatures were more than 260 ℃, which indicated that they could meet the requirement of lubricating operation. Their tribological properties as lube additives in liquid paraffin were evaluated using a four-ball testing machine. Results showed that the derivatives exhibited excellent load-carrying capacity at an adding dosage of 1%, the Pb value of 2a reached 910 N,even higher than that of ZDDP. All of them possessed good anti-wear performance,and 2b was the best. The worn surfaces of the tested steel ball were analyzed by SEM and the tribological mechanism was discussed briefly.

关 键 词：润滑油添加剂 黄原酸衍生物 摩擦学性能 

分 类 号：TH117.22[机械工程—机械设计及理论]