| 超高分子量聚乙烯(UHMWPE)凝胶纤维串晶结构形成机理的研究 |
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| 引用本文： | 陈自力,刘兆峰,胡祖明. 超高分子量聚乙烯(UHMWPE)凝胶纤维串晶结构形成机理的研究[J]. 东华大学学报(自然科学版), 1992, 0(1) |
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| 作者姓名： | 陈自力 刘兆峰 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)在凝胶纺丝工艺条件下超分子结构的形成及其机理是目前正在研究的热门课题。本文借助扫描电子显微镜(SEM)、广角 X 射线衍射(WAXD)、小角 X 射线(SAXS)和透射电子显微镜(TEM)等手段初步研究和探讨了 UHMWPE 凝胶丝在超拉伸过程中超分子结构的形成过程及机理,发现拉伸后纤维具有明显的串晶结构并有部分向连续结晶体结构转化,而且认为这一超分子特征结构是纤维取得高性能的内在结构原因。
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| 关 键 词： | 凝胶 聚乙烯 透射电子显微术 结构参数 超拉伸 串晶结构 凝胶纺丝 超高分子量聚乙烯凝胶纤维 |
STUDY ON THE FORMATION MECHANISM OF SUPERMOLECULAR STRUCTURE OF SHISH KEBABS OF GEL-SPUN UHMWPE FIBERS |
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| Chen Zili Liu Zhaofeng Hu Zuming. STUDY ON THE FORMATION MECHANISM OF SUPERMOLECULAR STRUCTURE OF SHISH KEBABS OF GEL-SPUN UHMWPE FIBERS[J]. Journal of Donghua University, 1992, 0(1) |
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| Authors: | Chen Zili Liu Zhaofeng Hu Zuming |
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| Affiliation: | Man-made Fiber Research Institute |
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| Abstract: | In this paper the formation mechanism of supermolecular structure of gel-spunultra-high molecular weight polyethylene(UHMWPE)fibers is discussed on bases of datafrom scanning electron microscopy(SEM),wide angle X-ray diffraction(WAXD),smallangle X-ray scattering(SAXS)and transmission electron microscopy(TEM).It shows thathigh drawn PE gel-fibers have the structure of shish-kcbabs gradually formed during draw-ing process.This characteristic structure can be transformed to extented-chain crystal struc-ture at very high drawing degree.And it is just the internal structure that contributes to thehigh-performance of UHMWPE fibers |
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| Keywords: | gel polyethylene transmission electron microscopy(TEM) structure parameter ultra-drawing shish-kebabs gel-spinning ultra-high molecular weight polyethylene(UHMWPE)gel-fibers |
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