期刊论文

中文

中南林业科技大学学报

1673-923X

2012

32

5

186-190

10.14067/j.cnki.1673-923x.2012.05.003

江苏省建设科技项目

本校为第一机构

以不同用量的同种固化剂和环氧树脂合成的胶黏剂固化体系为研究对象,对其进行了动态力学性能测定与对比分析。结果表明,固化剂用量不同的两组试样室温完全固化后模量较高,内耗较小。温度扫描测试表明,随固化剂用量增加,环氧树脂胶黏剂的玻璃化转变温度和交联度提高,活化能也相应提高。由两组试样的频率扫描测试结果得到:50℃下tanδ变化图形形状大致相同,可通过上下平移得到不同温度的tanδ图。

The epoxy resin adhesive curing behaviours with different dosage of amine curing agent were compared and analyzed. The experimental results show that there were two groups of sample which completely cured at room temperature, and they had higher modulus and small internal friction than others. The temperature scanning test shows that the vitrification transition temperatures crosslinking degree and of epoxy resin adhesive raised as the curing agent dosage increased, and the activation energy for the curing process also increased. The testing re...