BRIDGING TOUGHENING OF EPOXY RESINS BY DISPERSED THERMOPLASTICS

被引：12

作者：

Yang Wei

Fu Zengli

Sun Yishi Tsinghua University

机构：

来源：

Acta Mechanica Sinica | 1989年 / 04期

基金：

中国国家自然科学基金;

关键词：

bridging model; toughening; crack pinning;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The particulate toughening behaviour of epoxy resins modified by ductile thermoplasticsis elucidated here by various bridging models. The experimental data for three different epoxy/PSF sys-tems are presented to illustrate the trend of the toughening characteristics. The conventional continuousbridging model is shown to have underestimated the effect of the particulate toughening. A joint appli-cation of the discrete bridging model and the multiple bridging model, however, shows promising resultfor modified epoxy systems such as AG80/DDS/PSF and E51/DDS/PSF. These models also providequantitative descriptions for the crack pinning phenomenon previously observed by Fu and Sun inAG80/DDS/PSF.

引用

页码：332 / 342

页数：11