Morphologies and mechanical properties of syndiotactic polypropylene (sPP) polyethylene (PE) blends

被引：23

作者：

Loos, J

Bonnet, M

Petermann, J ^{[1
]}

机构：

[1] Univ Dortmund, Dept Chem Engn, Inst Sci Mat, D-44221 Dortmund, Germany

[2] Eindhoven Univ Technol, Eindhoven Polymer Labs, NL-5600 MB Eindhoven, Netherlands

来源：

POLYMER | 2000年 / 41卷 / 01期

关键词：

syndiotactic polypropylene/polyethylene blends; mechanical behavior; morphology;

D O I：

10.1016/S0032-3861(99)00092-0

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 tensile properties of blends based on syndiotactic polypropylene (sPP) and high-density polyethylene (HDPE) have been studied. In order to understand the unexpected decrease in ductility, the crystallization behavior of these blends was characterized by transmission electron microscopy and in-situ Raman spectroscopy. For all investigated blends demixing occurs, and results for low HDPE concentrations in an island-like morphology of HDPE domains embedded in a continuous sPP matrix. For all investigated sPP/HDPE blends the start temperature of the sPP crystallization significantly increases with increasing HDPE content. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：351 / 356

页数：6

共 17 条

[1] THE MECHANISM OF RUO4-MEDIATED OXIDATIONS OF SATURATED-HYDROCARBONS - REACTIVITY, KINETIC ISOTOPE EFFECT AND ACTIVATION PARAMETERS [J].