热塑性聚醚酰亚胺改性四官能度环氧树脂的相分离研究Ⅳ.聚醚酰亚胺用量的影响

摘要: 研究了不同用量新型苯端基聚醚酰亚胺（Ｐ－ＰＥＩ）对其改性４，４’－二氨基二苯甲烷四缩水甘油醚环氧树脂（ＴＧＤＤＭ）／４，４’－二氨基二苯砜（ＤＤＳ）体系的固化速率及相结构的影响。结果表明，随着ＰＥＩ用量的增加，固化反应速率增大，形成了不同的相结构。解释了ＰＥＩ用量对粘接剪切强度的影响。

Abstract: The effect of PEI content on the phase separation of polyetherimde modifed TGDDM epoxy system was studied. The blends have different morphologies from a PEI domain structure to phase inversion structure depending on the PEI's content. The results show tha