| 取向非晶态聚对苯二甲酸乙二酯(PET)膜的结晶 |
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| 引用本文： | 范庆荣,钱人元,STAMM,M..取向非晶态聚对苯二甲酸乙二酯(PET)膜的结晶[J].高分子学报,1991,0(5):567-571. |
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| 作者姓名： | 范庆荣 钱人元 STAMM M. |
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| 作者单位： | 中国科学院化学研究所，中国科学院化学研究所，联邦德国，美茵茨，马普高分子研究所 北京 100080，北京 100080 |
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| 基金项目： | 中国科学院重大研究项目，国家自然科学基金资助 |
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| 摘 要： | 采用小角和广角X-散射法比较了未拉和热拉PET膜在结晶性能方面的差别,热拉试样在分子链段的小尺度范围内基本上是无规取向,而在分子链的大尺度范围内却是高度取向的。研究结果表明:热拉PET膜的结晶诱导期较短,长周期发展得较快,结晶后小角X-线散射表现出明显的各向异性,在热处理过程中先出现显著的热收缩,随后又表现出结晶伸长现象,这些都和未拉试样有明显的差别。
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| 关 键 词： | 结晶 聚对苯二甲酸乙二酯 单轴拉伸膜 |
| 收稿时间： | 1990-05-03 |
CRYSTALLIZATION OF POLY(ETHYLENE TEREPHTHALATE) FROM ORIENTED AMORPHOUS FILM |
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| FAN Qing-rong,QIAN Ren-yuan,STAMM,M.CRYSTALLIZATION OF POLY(ETHYLENE TEREPHTHALATE) FROM ORIENTED AMORPHOUS FILM[J].Acta Polymerica Sinica,1991,0(5):567-571. |
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| Authors: | FAN Qing-rong QIAN Ren-yuan STAMM M |
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| Institution: | Institute of Chemistry; Academia Sinica; Beijing; Post code: 100080; MPI F. Polymerforschung; Mainz; FRG |
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| Abstract: | Crystallization behavior of undrawn and hot drawm PET film with random orientation in chain segments and high orientation in the global sense has been compared using SAXS and WAXD. As compared with undrawn PET film, the hot drawn PET film showed shorter crystallization induction period, faster development of long period, anisotropic in SAXS and WAXD patterns, with considerable thermal contraction along the direction of drawing and small lengthening in the direction of drawing during crystallization. |
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| Keywords: | Crystallization Polyethyleneterephthalate Uni-axially Drawn Film |
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