玻璃钢/复合材料 ›› 2007, Vol. 197 ›› Issue (5): 7-10.

• 基础研究 • 上一篇    下一篇

聚砜纳米纤维增韧环氧树脂体系的固化动力学研究

  

  1. 北京化工大学碳纤维及复合材料研究所; 北京化工大学碳纤维及复合材料研究所; 北京玻璃钢研究设计院 北京100029; 北京100029; 北京102101
  • 出版日期:2007-05-25 发布日期:2007-05-25

CURE KINETICS OF A TGDDM EPOXY/DDS System MODIFIED WITH POLYSULFONE NANOFIBER 

  • Online:2007-05-25 Published:2007-05-25

摘要:

本文采用等温DSC研究不同用量纳米聚砜纤维对增韧4,4’-二氨基二苯甲烷四缩水甘油胺环氧树脂(TGDDM)/4,4’-二氨基二苯砜(DDS)体系固化动力学的影响。应用自催化模型表征固化动力学参数。试验结果表明,聚砜纳米纤维加入后的树脂固化动力学参数符合自催化反应模型理论。聚砜纳米纤维的加入,对纳米聚砜树脂混合物的反应速率,反应程度都有明显提高。

关键词: 环氧树脂, 聚砜, 纳米纤维, 固化动力学

Abstract:

The cure kinetics and mechanisms of 4,4'-diamiodiphenyl methane(TGDDM) epoxy/4,4'-diaminodiphenyl sulfone(DDS) modified with various composition of polysulfone nanofibers are studied using differential scanning calorimetry.The results show that the autocatalytic mechanism is observed by the PSF-nanofiber-modified epoxy;the curing rate and the extend of curing of the modified system are accelerated with the addition of PSF-nanofiber.

Key words: epoxy resin, polysulfone, nanofiber, cure kinetics