利用PDSC考察环境友好润滑油基础油氧化安定性的研究  

Study on the Oxidative Stability of Base Oil for Biodegradable Lubricants Using Pressure Differential Scanning Calorimetry Method

作　　者：张梅[1] 李久盛[1] 李建群[1] 

机构地区：[1]中国石油兰州润滑油研究开发中心,甘肃兰州730060

出　　处：《润滑与密封》2006年第12期152-154,共3页Lubrication Engineering

摘　　要：结合环境友好润滑油产品的开发工作,用加压差热扫描示量法(PDSC)研究了菜籽油、双酯、多元醇酯等几种基础油的氧化稳定性,并与旋转氧弹的结果进行了比较;对菜籽油在不同温度下的氧化反应特性进行了考察,并采用阿仑尼乌斯公式计算了菜籽油氧化反应的活化能,初步研究了其氧化反应机制。试验结果表明,PDSC可用于评价基础油的氧化安定性,合成酯的氧化安定性明显优于菜籽油,且多元醇酯的氧化安定性最好。The oxidative stability of several base oils of biodegradable lubricants, such as rapeseed oil and three kinds of synthetic esters was evaluated using pressure differential scanning calorimetry（PDSC） and the results was compared with that of rotory bomb oxidation. The oxidative reaction characteristic of rapeseed oil in different temperature was studied,its active energies of oxidative reaction was calculated by using Arrhenius equation, and the mechanism of the oxidation was discussed. The results show that PDSC can be used to evaluate the oxidative stability of base oils;synthetic esters have much better oxidative stabilities than rapeseed oil and polyester is the best.

关 键 词：加压差热扫描示量法 氧化稳定性 环境友好润滑油 植物油 

分 类 号：TE626.3[石油与天然气工程—油气加工工程]