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Initial structure development in the CO2 laser-heated drawing of poly(trimethylene terephthalate) fiber
http://hdl.handle.net/10091/1400
http://hdl.handle.net/10091/14003ddd0d9f-941c-460a-b30e-1aa57eac70f0
名前 / ファイル | ライセンス | アクション |
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PTT-Initial.pdf (2.9 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-12-02 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Initial structure development in the CO2 laser-heated drawing of poly(trimethylene terephthalate) fiber | |||||
言語 | ||||||
言語 | eng | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.polymer.2008.10.022 | |||||
関連名称 | 10.1016/j.polymer.2008.10.022 | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Kim, K
× Kim, K× Kang, Y× Murata, T× Ikehata, S× Ohkoshi, Y× Gotoh, Y× Nagura, M× Koide, M× Urakawa, H× Kotera, M |
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信州大学研究者総覧へのリンク | ||||||
氏名 | Ohkoshi, Y | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.jUkejekV.html | |||||
信州大学研究者総覧へのリンク | ||||||
氏名 | Gotoh, Y | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.uVDmjekV.html | |||||
出版者 | ||||||
出版者 | Elsevier Ltd. | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Polymer. 49(26):5705-5713 (2008) | |||||
書誌情報 |
Polymer 巻 49, 号 26, p. 5705-5713, 発行日 2008-12-08 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Because rapid and uniform laser heating can fix the neck-drawing point in continuous drawing of PTT fiber, we have successfully analyzed the fiber structure development in the continuous drawing process by in-situ measurement with a time resolution of less than 1 ms. In this study, we investigated fiber structure development for PTT around the neck point controlled with a CO2 laser-heated apparatus during continuous drawing, through on-line measurements of WAXD, SAXS, and fiber temperature. Fiber temperature attained by laser radiation initiated a rise around −3 mm in relation to the neck point at 0 mm, and increased to about 90 °C, which is past the 45 °C Tg for PTT. The instantaneous increase in fiber temperature continued with a vertical ascent, with plastic deformation around the neck point. The crystalline diffraction pattern was revealed initially at the elapsed time of 0.415 ms immediately after necking, and remained fairly constant with elapsed time. The ultimate crystalline diffraction pattern for a completely drawn fiber showed little difference from that at the initial stage. In PET a two-dimensionally ordered structure in the form of a mesophase was detected immediately after the necking, whereas in PTT the phenomenon was not observed. With elapsed time, the d spacing of (002) plane decreased gradually due to transformation of the initial all-trans conformation into trans-gauche-gauche-trans conformation, and ultimately the PTT molecular chain could favorably adopt the trans-gauche-gauche-trans conformation. SAXS pattern immediately after the necking revealed an X-shape; the scattering intensity concentrated on meridian directions due to individual crystal development, and at 2 ms two-pointed scattering started to appear. Past 8 ms, the typical two-pointed scattering pattern was prominent and its intensity increased with elapsed time. Long period decreased with increasing elapsed time, but the crystallite size of meridian (002) plane hardly changed. The decrease in long period might be caused by chain relaxation in the amorphous region. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0032-3861 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00776983 | |||||
他の資源との関係:URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.elsevier.com/locate/polymer | |||||
関連名称 | http://www.elsevier.com/locate/polymer | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |