高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (1): 160.

• 研究简报 • 上一篇    

一种新的绝缘膜──聚对苯二甲酸对氧代苯甲酸乙二酯

田正华1, 邓元2, 祝宝祥2   

  1. 1. 鞍山钢铁学院应用化学系, 鞍山, 114002;
    2. 仪征化纤股份有限公司研究院
  • 收稿日期:1996-04-14 出版日期:1997-01-24 发布日期:1997-01-24
  • 通讯作者: 田正华, 女, 56岁, 教授.
  • 作者简介:田正华, 女, 56岁, 教授.
  • 基金资助:

    辽宁省科学技术委员会和鞍山市科学技术委员会基金

A New Electric Insulating Film ──Poly(ethylene terephthalate p-Oxybenzoate)

TIAN Zheng-Hua1, DENG Yuan2, ZHU Bao-Xiang2   

  1. 1. Anshan Institute of Iron & Steel Technology, Yizheng Anshan, 114002;
    2. Research Institute of Chemical Fiber Co.Ltd.
  • Received:1996-04-14 Online:1997-01-24 Published:1997-01-24

PDF (PC)

被引次数

2

关键词: 聚对苯二甲酸对氧代末甲酸乙二酯, 4, 4'-二苯醚二甲酸, 绝缘膜

Abstract: Aseries of copolyesters poly(ethylene terephthalate p-oxybenzoate) (PETO) de-rived from terephthalic acid, ethylene glycol and 4, 4' -oxybis (benzoic acid) were easily pre-pared by using DMT method and thermally investigated.Introduction of 4, 4' -oxydipheny-lene group into the main chain resulted in a lowering of Tm.a decrease of crystallization rate and an increase of thermal-oxidative stability of the copolyesters.By static elongation of PETO, transparent films with qualified electrical properties and mechanical properties were easily obtained with film forming rate 100%.In comparison with poly (ethylene terephthalate) (PET) film, PETOfilm had obviously low Tm.and low crystallization temper-ature.Due to the presence of stable aromatic ether structure, decrease in Tm.could not lead to any reduction in thermal-oxidative stability, on the contrary, slight increase was ob-served.PETOfilm could be used in making heat resistant thick film for channel insulators of electric motor.

Key words: Poly (ethylene terephthalate p-oxybenzoate), 4,4' -Oxybis (benzoic acid), Electric insulating film

TrendMD: