High-temperature embrittlement of semicrystalline polymers

被引：0
|
作者：
Akopyan, EL [1 ]
Nechai, TV [1 ]
Bazhenov, SL [1 ]
机构：
[1] Russian Acad Sci, Enikolopov Inst Synthet Polymer Mat, Moscow 117393, Russia
来源：
POLYMER SCIENCE SERIES B | 2003年 / 45卷 / 3-4期
关键词：
D O I：
暂无
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 effect of temperature on the fracture elongation of low-density polyethylene, high-density polyethylene, and ethylene-vinyl acetate copolymer is studied. Semicrystalline polymers with a relatively low molecular mass display a decrease in their fracture elongation as the testing temperature approaches their melting point. Based on the results obtained and published data, a correlat on was found between the molecular mass of various polymers and their fracture elongation near the melting point. The fracture strain decreases with a decrease in the molecular mass of the polymer irrespective of its chemical structure. The effect of high-temperature embrittlement is characteristic of polymers with a molecular mass not exceeding 30000.
引用
收藏
页码：53 / 58
页数：6
相关论文
共 50 条
12345