蓖麻油酸季戊四醇酯的合成及性能研究  

Study on castor oleic acid pentaerythritol ester synthesis and properties

作　　者：焦体[1] 胡文云[1] 唐志辉[1] 周诗磊[1] 邹晨[1] 

机构地区：[1]武汉工业学院化学与环境工程学院,湖北武汉430023

出　　处：《武汉工业学院学报》2012年第2期27-30,共4页Journal of Wuhan Polytechnic University

摘　　要：以蓖麻油和季戊四醇为原料,通过皂化,酯化合成蓖麻油酸季戊四醇酯,研究了原料配比,催化剂用量,反应温度,反应时间等对酯化反应的影响。最佳条件为:蓖麻油与季戊四醇的摩尔比为1.1∶1,催化剂用量为蓖麻油酸质量的0.5%,反应温度180—200℃,反应时间4h.生成的蓖麻油酸季戊四醇酯为黄色透明液体,产率为89.12%,用红外光谱进行了定性分析,证明了目标产物的存在,采用了热重/差热综合热分析仪研究了其热稳定性,采用了运动黏度测定仪研究了其黏温性能。结果表明:其润滑性能、热稳定性、黏温性能满足润滑油基础油的要求。With castor oil and pentaerythritol as raw material, castor oleic acid ester was synthesized by the saponifi- cation and esterification. The ratio of raw material, catalyst dosage, reaction temperature and reaction time on the esteriflcation of influence was studied. And the best conditions were as follows： castor oil and pentaerythritol mole ratio of 1.1 ： 1, catalyst dosage of the mass of oleic acid castor for 0.5 %, reaction temperature 180--200 ℃, re- action time 4 h. The Castor oleic acid pentaerythritol ester was a kind of yellow transparent liquid, production rate was 89.12%. It proved the existence of the target product with infrared spectra of qualitative analysis. It studied the thermal stability-good using a hot heavy/difference heat integrated thermal analyzer and the sticky temperature performance with the motion viscosity locator. It showed a good properties as lubricadn~ oil.

关 键 词：蓖麻油 季戊四醇 红外光谱分析 热重分析 

分 类 号：TQ645[化学工程—精细化工]