文献类型：期刊文献

中文题名：网络间的化学键效应对聚氨酯/乙烯基酯树脂IPN形态与力学性能的影响

英文题名：CHEMICAL BONDS EFFECT ON THE MORPHOLOGY AND MECHANICAL PROPERTIES OF POLYURETHANE AND VINYL ESTER RESIN IPNs

作者：王贵友[1];胡春圃[1];张志平[1];应圣康[1]

机构：[1]华东理工大学材料科学研究所

年份：1997

卷号：7

期号：2

起止页码：1

中文期刊名：弹性体

外文期刊名：China Elastomerics

收录：CSTPCD

基金：国家自然科学基金

语种：中文

中文关键词：互穿聚合物网络;聚氨酯;乙烯基酯树脂;化学键

外文关键词：Interpenetrating Polymer Network;Polyurethane;Vinyl Ester Resin;Effect of Chemical Bonds;Morphology;Mechanical Property

摘要：本文通过环氧树脂（Ｅ—５１）与甲基丙烯酸合成了大分子链中含有羟基或羟基被封闭的乙烯基酯树脂（分别称为ＶＥＲＨ与ＶＥＲＡ），并用它们与聚氨酯（ＰＵ）合成了不同组成的ＰＵ／ＶＥＲ互穿网络（ＩＰＮ），用扫描电子显微镜考察了这些ＩＰＮ材料的形态，发现网络间的化学键对ＩＰＮ的形态有很大影响，它们抑制了两个网络间的分相以及ＰＵ硬段局部有序结构的形成。对这些材料的力学性能进行了测定，结果表明网络间的化学键能较大幅度地提高材料的力学性能。
In this paper,two kinds of vinyl ester resins(VER) having OH-groups(VERH)or without having OH-groups(VERA)have been synthesized with E-51 epoxy resin and methacryl acid.A series of polyurethane(PU)/VER IPNs with different compositions were prepared.The morpho- logy for these IPNs was examined by using SEM.Based upon the SEM photos,the chemical bonds between the two networks had great influence on the IPNs' morphology,and they restricted phase separation between the two networks and the formation of orientation structrue of hard segments in PU.The chemical bonds existing in IPN between the two networks can increase the mechanical properties of IPNs appreciably.