含高碱值烷基水杨酸钙和硫化异丁烯的菜籽油摩擦学性能研究  

TRIBOLOGICAL PERFORMANCE OF OVERBASED CALCIUM ALKYL SALICYLATE AND SULFURIZED ISOBUTYLENE IN RAPESEED OIL

作　　者：刘静[1] 王延飞[1] 唐鹏飞 刘娜[1] 

机构地区：[1]南华大学化学化工学院,湖南衡阳421001 [2]衡阳金化科技集团

出　　处：《石油炼制与化工》2015年第11期78-81,共4页Petroleum Processing and Petrochemicals

摘　　要：使用四球摩擦试验机考察了硫化异丁烯(T321)与高碱值烷基水杨酸钙(T109)复配添加剂在菜籽油中的摩擦学性能。结果表明,T109的加入可保留含T321菜籽油的极压性能,显著提高其抗磨性能,延长其润滑寿命。采用X射线能谱仪分析了摩擦膜表面元素的组成,对钙盐与硫系添加剂的协同作用机理进行了初步探讨,发现与10s的极压测试相比,30min的长磨测试后钢球表面膜中除明显有碳、钙元素的沉积外,其它元素含量相差不大,因此认为复配体系的抗磨性能提升可能是由于摩擦表面生成了含钙、碳的无机盐,而极压性能未能提升则是由于极压测试时间较短,CaCO3来不及参与摩擦反应。Four-ball tests were performed for rapeseed oil （RSO） containing the sulfurized butylene （T321） and the overbased calcium alkyl sulfonate （T109） to investigate the tribological properties of T321, T109, and their synergistic effect. The results show that the addition of T109 can retain the extreme pressure properties of rapeseed oil containing T321, improve its anti-wear performance and prolong its working life. The element compositions on the worm surface of the tested steel balls were detected by EDS technique and the synergistic effect of T109 and T321 was analyzed. It is found that in comparison with 10s of extreme pressure test, except of obvious carbon, calcium deposition, no large difference was found for other elements in 30 min test. Thus the improved anti-wear ability of the lubricant with two additives seems to be caused by the formation of inorganic boundary film containg calcium and carbon on the friction surface. While the extreme pressure performance fails to ascend is due to the extreme pressure testing time is too short to make CaCO3 participate in the friction reaction.

关 键 词：硫化异丁烯 高碱值烷基水杨酸钙 协同作用 摩擦学性能 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]