Network chain orientation in the toughening process of the elastomer modified mesogenic epoxy resin

被引：28

作者：

Ochi, M ^{[1
]}

Morishita, T ^{[1
]}

Kokufu, S ^{[1
]}

Harada, M ^{[1
]}

机构：

[1] Kansai Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5648680, Japan

来源：

POLYMER | 2001年 / 42卷 / 24期

关键词：

elastomer modification; mesogenic epoxy resin; toughening;

D O I：

10.1016/S0032-3861(01)00474-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A biphenol-type epoxy resin, which has a mesogenic group in the backbone moiety, was modified with a reactive elastomer (CTBN). Toughness of the epoxy resin was significantly increased with the addition of the CTBN elastomer compared with that of the bisphenol-A type epoxy resin. It was clearly observed by SEM that a large plastic deformation occurred near the crack-tip in the biphenol-type epoxy resin modified with CTBN. The arrangement of the network chains in the plastic deformation region was quantitatively studied by polarized microscopic FT-IR technique, which was related to the toughening mechanism of the elastomer modified epoxy resin. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：9687 / 9695

页数：9

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