Tensile Properties of Polypropylene Filaments

被引：0
|
作者：
Svetec, Diana Gregor [1 ]
机构：
[1] Univ Ljubljani, Oddelek Tekstilstvo, Naravoslovnotehniska Fak, Ljubljana, Slovenia
来源：
TEKSTILEC | 2008年 / 51卷 / 10-12期
关键词：
polypropylene; polymer blend; tenacity; elastic modulus;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号：
0805 ; 080502 ; 0821 ;
摘要：
In this work, the tensile properties of polypropylene filaments, made by a melt-spinning and drawing process optimized in order to increase the elastic modulus of the filaments, are presented. The influence of molecular weight and the molecular weight distribution of the polymer on the tensile properties of the filaments, spun from polymers of different molecular weights with various composition ranges, was investigated. It was found that polypropylene filaments spun from a fiber-grade CR-polymer have better mechanical properties, when compared with filaments spun from a plastic-grade polymer with a broader molecular weight distribution. The characteristics of the filaments produced from binary blends are mainly dependent on the prevailing polymer in the blend; however, the addition of the other polymer exerts some influence as well. In both cases, a small percentage of added polymer improves the tensile properties of the filaments.
引用
收藏
页码：283 / 299
页数：17
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