聚合物串晶结构制备研究进展 |
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引用本文: | 徐运祺,王万卷容腾,刘志健何国山潘永红. 聚合物串晶结构制备研究进展[J]. 中国塑料, 2014, 28(5): 16-20. DOI: 10.19491/j.issn.1001-9278.2014.05.003 |
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作者姓名: | 徐运祺 王万卷容腾 刘志健何国山潘永红 |
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作者单位: | 1. 广州质量监督检测研究院2. 广州市质量监督检测研究院 |
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摘 要: | 综述了聚合物串晶结构的制备方法,其中主要有熔融挤出流延法、熔融纺丝法和溶液结晶法等。讨论了聚合物串晶结构形成和生长机理的研究进展。研究表明,各向同性熔体的分子链会发生折叠而形成球晶,而取向熔体的分子链会被拉伸伸直而形成串晶。串晶结构(shish-kebab)形成过程中,由伸直链晶体组成的部分(shish)和由折叠链晶体组成的部分(kebab)是同时形成的。最后对串晶结构的应用前景提出了展望。
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关 键 词: | 串晶 制备 机理 研究进展 |
收稿时间: | 2014-01-15 |
Advance on Preparation of Polymer Shish-kebab Structure |
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Abstract: | Preparation methods of polymer shish-kebab structure have been reviewed. Melt extruding casting, melt spinning, and solution crystallization method have been introduced. Research progress in formation mechanism and crystallization model for shish-kebab has been discussed. It was observed that spherulites and shish-kebabs will be formed from the isotropic and oriented melt via fold and bundle nucleus, respectively. In the process of shish-kebab formation, shish crystals and kebab crystals will form simultaneously. Shish crystals consists of extended chain, and kebab crystals consist of folded chain. Finally, prospect for application of shish-kebab structure has been indicated. |
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Keywords: | shish-kebab preparation mechanism research progress |
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