液相色谱法测定混合绝缘油中抗氧化剂含量研究

The antioxidant content of the mixed insulating oil was determined by chromatography

为突破植物油使用范围的局限性,考虑将植物油与矿物油混合,既能最大比例的使用植物油,又能满足混合油的倾点较低,适合低温环境使用。测试2,6-二叔丁基对甲酚(BHT)(T501)、没食子酸丙酯(PG)、叔丁基对苯二酚(TBHQ)、丁基羟基茴香醚(BHA)等4种常用抗氧化剂色谱流动相的适宜条件,研究植物油与混合油自身、经分子筛浸泡后的空白绝缘油及空白混合油、添加定量抗氧化剂后油中含有4种抗氧化剂的种类及含量。

In order to break through the limitation of the application range of vegetable oil,it is considered to mix vegetable oil with mineral oil,which can not only use vegetable oil in the largest proportion,but also meet the low freezing point of the mixed oil,which is suitable for low-temperature environment.The suitable conditions of chromatographic mobile phases of 4 common antioxidants such as 2,6-di-tert-butyl-p-cresol(T501),propyl gallate(PG),tert-butyl hydroquinone(TBHQ)and butyl hydroxyanisole(BHA)were tested,and the vegetable oil and mixed oil itself,blank insulating oil and blank mixed oil soaked in molecular sieve were studied.After adding quantitative antioxidants,the oil contains the types and contents of four antioxidants.