菜籽油酸新戊二醇癸二酸复合酯的制备及性能  

Preparation and Performance of Neopentyl Glycol Sebacic Acid and Rapeseed Acid Complex Esters

作　　者：周石柔[1] 廖德仲[2] 许怡学[2] 

机构地区：[1]岳阳职业技术学院医学基础部,中国岳阳414000 [2]湖南理工学院化学化工系,中国岳阳414000

出　　处：《湖南师范大学自然科学学报》2011年第4期55-58,共4页Journal of Natural Science of Hunan Normal University

基　　金：湖南省自然科学基金资助项目(08JJ3019);湖南省科技计划资助项目(2007GK4016)

摘　　要：新戊二醇(NPG)和癸二酸(SA)反应得到聚合度(m)在1.61～5.44之间的"低聚物"中间体,收率95%以上.再将中间体与菜籽油酸进行酯化得到复合酯,收率90%.实验结果表明复合酯40℃的粘度在110～280mm2/s之间,粘度指数均大于210,凝点低于-41℃,生物降解率>95%,承载能力PB为882 N,磨斑直径0.42 mm,氧化稳定性随聚合度的增大而提高.复合酯是性能优良的绿色润滑剂.Oligomeric intermediates with the degree of oligomers（m） 1.61 -5.44 were synthesized from neopentyl glycol and sebacic acid with 95% yield. The complex esters were obtained by esterification of the oligomers with rapeseed acid, and the yield of the complex esters were 90%. Experimental results show that viscosity of the complex esters at 40 ℃ is in the range of 110 -280 mm^2/s, viscosity index is higher than 210, solidifying point is belower than -41℃, biodegradation rates were high and more than 95% , load carrying capacity PB is 882 N, and grinding spot diameter is 0. 42 mm, anti-oxidation stability increases with increasing polymerization degree. The complex esters are excellent green lubricants.

关 键 词：新戊二醇 癸二酸 菜籽油酸 复合酯 绿色润滑剂 

分 类 号：TQ225.24[化学工程—有机化工]