应用化学 ›› 1996, Vol. 0 ›› Issue (2): 61-63.

• 研究简报 • 上一篇    下一篇

季戊四醇酯难燃绝缘油的研究

陈尔凡, 肖毅, 徐新   

  1. 沈阳化工学院高分子化工系 沈阳 110021
  • 收稿日期:1995-07-16 修回日期:1995-10-20 出版日期:1996-04-10 发布日期:1996-04-10

Synthesis of Pentaerythritol Esters and Its Properties as Dielectric Fluid with Low Flammability

Chen Erfan, Xiao Yi, Xu Xin   

  1. Department of Polymer Engineering, Shenyang Institute of Chemical Technolegy, Shenyang 110021
  • Received:1995-07-16 Revised:1995-10-20 Published:1996-04-10 Online:1996-04-10

摘要: 普通绝缘油(矿物油)耐热性差(闪点低),且使用寿命短.故国际上大力开展了难燃绝缘油的研制[1-5].如德国MIDEL7131油等,具有较高的闪点及介电常数.

关键词: 难燃绝缘油, 季戊四醇酯, C5-9混合酸, 酯化反应

Abstract: The present paper deals with the esterification of pentaerythritol with aliphatic acids and C5-9 mixed acid. The influencing facters of esterification and properties of the pentaerythritol esters were studied. The results showed that the esterification products of octanoic acid and C5-9 mixed aicd are suitable to use as dielectric fluid with low flammability, such as transformer oil, switch oil,capacitor fluid and other dielectric fluids.The flash point is >240℃, pour point<-40℃ and breakdown voltage >35 kV/cm.

Key words: dielectric fluid with low flammability, pentaerythritol ester, C5-9 mixed acid, esterification