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以ＤＳＣ、ＴＲＬＳ和ＳＥＭ等方法研究了固化剂ＤＤＳ用量对苯端基聚醚酰亚胺（Ｐ－ＰＥＩ）改性４，４′－二氨基二苯甲烷四缩水甘油环氧树脂（ＴＧＤＤＭ）体系的固化速率及相结构的影响．结果表明，２０ｐｈｒＰ－ＰＥＩ改性环氧体系在１５０℃固化时，随ＤＤＳ量增加，固化反应速率增大，相分离时间提前，形成了不同的相结构，解释了ＤＤＳ量对粘接剪切强度的影响．
The amount of curing agent DDS was studied by means of DSC, TRLS and SEM. The effects of the amount of curing agent on the content of benzene-terminated polyetherimide (P-PEI) modified 4,4’-diaminodiphenylmethane tetraglycidyl epoxy resin (TGDDM) The curing rate and phase structure of the impact. The results showed that the curing reaction rate of 20phrP-PEI modified epoxy system increased with the increase of the amount of DDS at 150 ℃, and the phase separation time advanced. Different phase structures were formed. The influence of DDS content on the bond shear strength Impact.