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.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
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)
关键词
新戊二醇
癸二酸
菜籽油酸
复合酯
绿色润滑剂
neopentyl glycol
sebacic acid
rapeseed acid
complex ester
green lubricant
