English

应用科学学报 ›› 1992, Vol. 10 ›› Issue (4): 364-370.

• 论文 • 上一篇    

聚甲醛的热降解研究

陈炜, 邹文樵, 冯仰婕   

  1. 华东化工学院
  • 收稿日期:1990-08-18 修回日期:1991-03-16 出版日期:1992-12-31 发布日期:1992-12-31

THE STUDY OF THERMAL DEGRADATION OF POLYOXYMETHYLENE

CHEN WBI, ZHOU WBNQIAO, FENG YANGJIE   

  1. East China University of Ckemieal Technology
  • Received:1990-08-18 Revised:1991-03-16 Online:1992-12-31 Published:1992-12-31

PDF

134

被引次数

9

摘要： 文中研究了聚甲醛的无氧热降解机制和动力学规律.利用热分析技术进行了不同升温速率和不同样品质量下系列聚甲醛的热降解实验,确定出了聚甲醛热降解的机制为遵循一级反应规律的无规断链降解过程,并计算出了未挥发的残存最小高分子的聚合度,降解动力学参数等数据,为我国聚甲醛产品质量的提高提供了参考数据.

关键词: 热降解, 非等温动力学, 聚甲醛

Abstract: Using the thermal analysis technique (TG/DTA/DTG), we have made the research of POM thermal degradation without oxygen in different experimental conditions, determined the mechanism of POM thermal degradation without oxygen ag the first order random degradation and obtained the kinetic parameters of degradation, E, In A and L the least number of repeating units of polymers not volatilized).

Key words: polyoxymethylene(POM), thermal degradation, non-isothermal kinetics