Toughening Modification of Unsaturated Polyester Resin Using HDI Trimer

被引：0
|
作者：
段华军 [1 ]
机构：
[1] School of Materials Science and Engineering,Wuhan University of Technology
来源：
Journal of Wuhan University of Technology(Materials Science) | 2009年 / 04期
关键词：
HDI trimer; unsaturated polyester; toughness; mechanical properties; morphology;
D O I：
暂无
中图分类号：
TQ323.4 [聚酯树脂及塑料];
学科分类号：
0805 ; 080502 ;
摘要：
HDI trimer was firstly used to improve the mechanical properties of hydroxylterminated unsaturated polyester (UP). Mechanical properties measurements performed on the cured materials demonstrate a distinct improvement in intensity and toughness in the presence of HDI trimer and shows the change trends of increase and then decrease. The morphological analysis of the fracture surfaces shows that the micro-phase separated structures appear in modified UPR systems and changed from dendritric, dimple and to cystiform structures with the increase of HDI trimer content. The presence of the cystiform structures made the modified UPR systems present the best properties.
引用
收藏
页码：627 / 630
页数：4
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