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.
出处
《润滑与密封》
EI
CAS
CSCD
北大核心
2006年第12期152-154,共3页
Lubrication Engineering
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
pressure differential scanning calorimetry
oxidative stability
biodegradable lubricant
vegetable oil
