环氧化菜籽绝缘油的制备及性能研究  

Study on preparation and properties of epoxidized rapeseed insulating oil

作　　者：魏乐[1] 何超迷 余辉[1] 于萍[1] 罗运柏[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《可再生能源》2014年第8期1225-1230,共6页Renewable Energy Resources

摘　　要：菜籽油与双氧水在乙酸参与和硫酸铝的催化下通过环氧化反应制得环氧化菜籽绝缘油。试验结果表明,环氧化反应的最佳工艺条件为菜籽油∶30%双氧水∶乙酸∶硫酸铝=1∶1.11∶0.25∶0.09(质量比),反应温度为60℃,反应时间为8 h,此条件下环氧值为4.73%。精炼后环氧化菜籽绝缘油的主要理化和电气性能可以达到10#变压器油GB/T 2536-90标准。经过环氧化反应后,菜籽油的抗氧化安定性大大提高,环氧化程度越高,抗氧化安定性越好。The epoxidized rapeseed insulating oil was prepared by epoxidation reaction between rapeseed oil and hydrogen peroxide with aluminum sulfate as the catalyst and the participation of acetic acid. The results indicated that the optimum conditions for preparation was obtaind when the mass ratio of rapeseed oi1：30% hydrogen peroxide：acetic acid：aluminum sulfate = 1： 1.11：0.25： 0.09,reaction temperature was 60 -C, reaction time was 8 h, and the epoxy value could reach 4.73%. Main physical-chemical and electrical properties of epoxidized rapeseed insulating oil after refining could reach the standards of GB/T 2536 （10^# transformer oil）. The antioxidant stability of rapeseed oil greatly improved after the epoxidation. The higher degree of epoxidation was, the better antioxidant stability got.

关 键 词：菜籽绝缘油 环氧化 理化和电气性能 抗氧化安定性 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]