ULTRA-HIGH-STRENGTH POLYETHYLENE FILAMENTS BY SOLUTION SPINNING-DRAWING
ULTRA-HIGH-STRENGTH POLYETHYLENE FILAMENTS BY SOLUTION SPINNING-DRAWING
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DOI：
10.1007/bf02396802
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发表时间：
1980-01-01
影响因子：
4.5
通讯作者：
LEMSTRA, PJ
中科院分区：
文献类型：
--
作者：
SMITH, P;LEMSTRA, PJ
本文研究了通过溶液纺丝和随后在 120°C 下热拉伸生产的超高强度线性聚乙烯单丝。研究了拉伸比对纤维机械和热性能的影响。拉伸比为 31.7 的聚乙烯长丝的一些显着特征是：断裂拉伸强度=3.0 GPa，杨氏模量=90 GPa，扫描速度为 10°C min−1 时的 DSC 熔点=145.5°C。发现模量与拉伸比线性相关。相比之下，拉伸强度在高拉伸比下趋向于接近上限。其他形态学和 X 射线研究表明，高度拉伸的聚乙烯单丝的纤维方向上的大分子具有极好的取向。
This paper deals with ultra-high-strength monofilaments of linear polyethylene that are produced by solution spinning and subsequent hot drawing at 120° C. The influence of the draw ratio on the mechanical and thermal properties of the fibres was investigated. Some salient features of a polyethylene filament with a draw ratio of 31.7 are: tensile strength at break=3.0 GPa, Young's modulus=90 GPa and DSC-melting point at a scan speed of 10° C min−1=145.5° C. The modulus was found to depend linearly on the draw ratio. The tensile strength tended, by contrast, to approach an upper limit at high draw ratios. Additional morphological and X-ray studies revealed an extremely good orientation of the macromolecules in the fibre direction of the highly drawn polyethylene monofilaments.