Mechanical properties of binary blends of polypropylene with ethylene-alpha-olefin copolymer

被引：39

作者：

Nitta, K ^{[1
]}

Okamoto, K ^{[1
]}

Yamaguchi, M ^{[1
]}

机构：

[1] TOSOH CORP,YOKKAICHI LAB,YOKKAICHI,MIE 510,JAPAN

来源：

POLYMER | 1998年 / 39卷 / 01期

关键词：

mechanical properties; isotactic polypropylene; rheo-optical properties;

D O I：

10.1016/S0032-3861(97)00239-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The compatibility of isotactic polypropylene and ethylene-1-butene copolymers changes with the content of 1-butene in the copolymer so that the morphology of their blends changes drastically. The relationship between morphology and mechanical properties for blends of isotactic polypropylene and ethylene-1-butene copolymer are investigated using a rheo-optical technique; the infrared absorbance spectroscopy and the stress are measured simultaneously under a constant rate of elongation. It is found that the compatible blends affinely deformed accompanied by little plastic deformation such as microvoids and craze, whereas the incompatible blends occurring a phase separation cause a segregation at interface between the two phases in the low strain region. (C) 1997 Elsevier Science Ltd.

引用

页码：53 / 58

页数：6

共 32 条

[1] THERMAL-EXPANSION AND GRUNEISEN FUNCTIONS OF POLYMER CRYSTAL MODELS .1. CENTRAL FORCES [J].