A novel compatibilizer for the toughening of unsaturated polyester resins

被引：15
|
作者：
Ragosta, G [1 ]
Bombace, M [1 ]
Martuscelli, E [1 ]
Musto, P [1 ]
Russo, P [1 ]
Scarinzi, G [1 ]
机构：
[1] Natl Res Council, Inst Res & Technol Plast Mat, I-80072 Arco, Na, Italy
来源：
JOURNAL OF MATERIALS SCIENCE | 1999年 / 34卷 / 05期
关键词：
Rubber; Fracture Surface; Infrared Spectroscopy; Reaction Process; Strong Reduction;
D O I：
10.1023/A:1004596028476
中图分类号：
T [工业技术];
学科分类号：
08 ;
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 site of the rubber particles, a better interface adhesion and an increase of localized shear yielding in the UP matrix around the rubber particles. (C) 1999 Kluwer Academic Publishers.
引用
收藏
页码：1037 / 1044
页数：8
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