Mechanism of toughening for polypropylene blended with ethylene-propylene-diene rubber following selective crosslinking

被引：0

作者：

Ishikawa, M ^{[1
]}

Sugimoto, M ^{[1
]}

Inoune, T ^{[1
]}

机构：

[1] NIPPON PETROCHEM CO LTD,PLAST LAB,KAWASAKI KU,KAWASAKI,KANAGAWA 210,JAPAN

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1996年 / 62卷 / 10期

关键词：

UNSATURATED ELASTOMER BLENDS; INJECTION-MOLDED SAMPLES; DEFORMATION MECHANISMS; MOLECULAR-STRUCTURE; POLYOLEFIN BLENDS; IMPACT PROPERTIES; POLYMER BLENDS; MELT RHEOLOGY; CROSS-LINKING; MORPHOLOGY;

D O I：

10.1002/(SICI)1097-4628(19961205)62:10<1495::AID-APP1>3.3.CO;2-9

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Toughening mechanism of polypropylene (PP) blended with ethylene-propylene-diene rubber (EPDM) following selective crosslinking was examined in comparison with that of blends of PP before crosslinking. The yield stress, strength of craze, and density of void which are dominant factors for enhancing toughness in PP blends were evaluated and the deformation and fracture mechanism was discussed. It was concluded that toughness of PP blended with EPDM is improved by selective crosslinking, since the improvement of the craze strength is greater than the drop in the release of the constraint of strain. (C) 1996 John Wiley & Sons, Inc.

引用

页码：1495 / 1502

页数：8

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