高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (9): 1011.

• 研究论文 • 上一篇    下一篇

氯化乙丙共聚物的热行为与稳定性研究

廖凯荣, 卢泽俭, 林尚安   

  1. 中山大学高分子研究所
  • 收稿日期:1989-03-11 出版日期:1990-09-24 发布日期:1990-09-24
  • 通讯作者: 廖凯荣, 510275

Studies on the Thermal Behavior and Stability of Chlorinated Ethylene-Propylene Copolymers

Liao Kairong, Lu Zejian, Lin Shangan   

  1. Institute of Polymer Science, Zhongshan University, Guangzhou
  • Received:1989-03-11 Online:1990-09-24 Published:1990-09-24

PDF (PC)

被引次数

4

摘要： 用TMA、DSC和丁G/DTG研究了氯化乙丙共聚物CEP的热行为和稳定性。结果表明:在相同氯含量时,丙烯组份含量高的CEP的软化温度和分解活化能均较高;乙、丙组份比相同的CEP的软化温度随氯含量增加而升高。在氯含量大于50%时,CEP脱HCl活化能显著增加。在CEP中加入热稳定剂,可有效地改善它的稳定性。在所试验的6种稳定剂中,以二盐基亚磷酸铅的效果最好。

关键词: 氯化乙丙共聚物, 热行为, 稳定性

Abstract: The thermal behavior and stability of the, title materials (CEP) were studied by means of TMA, DSC, and TG/DTG. The results show that the softening temperature of them is increased with the increase of chlorine content. In the case of the same chlorine content, the CEP with higher content of propylene component has a higher softening temperature and a higher activation energy of dehy-drochlbrination. Their thermal stability can be effectively improved by. adding stablizers in them.

Key words: Chlorinated ethylene-propylene copolymer, Thermal behavior, Thermal stability

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