A novel compatibilizer for the toughening of unsaturated polyester resins

被引：0
|
作者：
G. Ragosta
M. Bombace
E. Martuscelli
P. Musto
P. Russo
G. Scarinzi
机构：
[1] Institute of Research and Technology of Plastic Materials,National Research Council of Italy,
[2] ,undefined
来源：
Journal of Materials Science | 1999年 / 34卷
关键词：
Rubber; Fracture Surface; Infrared Spectroscopy; Reaction Process; Strong Reduction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A block-copolymer of the type A–B–A was synthesized from a commercial polybutadiene rubber (PBD) and an unsaturated polyester (UP) prepolymer. The reaction process was monitored via Fourier transform–infrared spectroscopy. The obtained copolymer was used as compatibilizing agent for UP/PBD blends. Fracture measurements performed on the cured materials demonstrated a substantial enhancement of tougheness in the presence of the copolymer. The morphological analysis of the fracture surfaces showed that the presence of the compatibilizing agent produced a strong reduction of the size of the rubber particles, a better interface adhesion and an increase of localized shear yielding in the UP matrix around the rubber particles.
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页码：1037 / 1044
页数：7
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