| 超高分子量聚乙烯(UHMWPE)凝胶丝在超拉伸过程中结构变化的表征 |
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| 引用本文： | 刘兆峰,陈自力,胡祖明.超高分子量聚乙烯(UHMWPE)凝胶丝在超拉伸过程中结构变化的表征[J].东华大学学报(自然科学版),1992(1). |
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| 作者姓名： | 刘兆峰 陈自力 胡祖明 |
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| 作者单位： | 中国纺织大学化学纤维研究所，中国纺织大学化学纤维研究所，中国纺织大学化学纤维研究所 |
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| 摘 要： | 超高分子量聚乙烯(UHMWPE)的初生凝胶电丝在超倍拉伸(简称为超拉伸)过程中其结构和性能要发生一系列变化。描述和表征这一过程可采用多种途径和多项指标。本文在用传统表征方法相比较的基础上提出了可用小角 X 射线散射(SAXS)强度来衡量纤维中的缺陷度,而缺陷度能很好地表征纤维在整个拉伸过程中力学性能的变化规律。本文的结论同时亦适用于其它高性能纤维品种,如 PVA 凝胶纤维等。
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| 关 键 词： | 聚乙烯纤维 拉伸 凝胶 小角散射 缺陷 凝胶纺丝 小角 X 射线散射 超拉伸 超高分子量聚乙烯 缺陷度 |
CHARACTERIZATION OF STRUCTURE CHANGES OF GEL-SPUN UHMWPE FIBERS IN ULTRA-DRAWING PROCESS |
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| Liu Zhaofeng Chen Zili Hu Zuming.CHARACTERIZATION OF STRUCTURE CHANGES OF GEL-SPUN UHMWPE FIBERS IN ULTRA-DRAWING PROCESS[J].Journal of Donghua University,1992(1). |
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| Authors: | Liu Zhaofeng Chen Zili Hu Zuming |
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| Institution: | Man-made Fiber Research Institute |
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| Abstract: | Structures and properties of as-spun ultra-high molecular weight polyethylene
(UHMWPE)gel fibers change in ultra-drawing process.Classical ways and parameters,such
as draw ratios,crystallinity and orientation functions cannot well explain the changes and
high performances of drawn,especially ultra-drawn fibers,which are investigated by SAXS
in this paper.To indicate the degree of flaws and defects,the SAXS intensity can be used as a
structure parameter of drawn fibers,it is more effective than the classical ways. |
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| Keywords: | polyethylene fiber drawing gel small angle scattering flaws gel-spinning small angle X-ray scattering ultra-drawing ultra-high molecular weight polyethylene degree of flaws and defects |
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