TENSILE-STRENGTH OF SOLUTION-SPUN, ULTRA-DRAWN ULTRA-HIGH-MOLECULAR-WEIGHT POLYETHYLENE FIBERS .2. INFLUENCE OF PROPYLENE COMONOMER CONTENT

被引：5
|
作者：
BASTIAANSEN, CWM
GROOTERS, GP
机构：
[1] DSM Research, 6160 MD Geleen
来源：
POLYMER | 1992年 / 33卷 / 08期
关键词：
TENSILE STRENGTH; FIBER; PROPYLENE;
D O I：
10.1016/0032-3861(92)91062-7
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 copolymerization with propylene on the fracture behaviour of solution-spun ultra-drawn, ultra-high molecular weight polyethylene (UHMW-PE, M(w) > 10(3) kg mol-1) fibres was investigated. UHMW-PE grades with virtually identical molecular weight and varying comonomer content (0.5-13.5 CH3/1000 C atoms) were used. It is shown that the tensile strength of drawn UHMW-PE fibres, at a constant Young's modulus, is independent of the comonomer content of the polymer. Apparently, the methyl side-groups hardly influence the fracture behaviour of the fibres. In combination with the experimental observation that methyl side-groups decrease intermolecular chain slippage (creep), this indicates that the failure process of solution-spun, drawn UHMW-PE fibres is mainly controlled by chain scission.
引用
收藏
页码：1653 / 1655
页数：3
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