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  1. 080 繊維学部
  2. 0801 学術論文

Initial structure development in the CO2 laser-heated drawing of poly(trimethylene terephthalate) fiber

http://hdl.handle.net/10091/1400
3ddd0d9f-941c-460a-b30e-1aa57eac70f0
名前 / ファイル ライセンス アクション
PTT-Initial.pdf PTT-Initial.pdf (2.9 MB)
Item type 学術雑誌論文 / Journal Article(1)
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
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

WEKO 41283

Kim, K

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Kang, Y

× Kang, Y

WEKO 41284

Kang, Y

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Murata, T

× Murata, T

WEKO 41285

Murata, T

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Ikehata, S

× Ikehata, S

WEKO 41286

Ikehata, S

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Ohkoshi, Y

× Ohkoshi, Y

WEKO 41287

Ohkoshi, Y

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Gotoh, Y

× Gotoh, Y

WEKO 41288

Gotoh, Y

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Nagura, M

× Nagura, M

WEKO 41289

Nagura, M

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Koide, M

× Koide, M

WEKO 41290

Koide, M

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Urakawa, H

× Urakawa, H

WEKO 41291

Urakawa, H

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Kotera, M

× Kotera, M

WEKO 41292

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
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
関連識別子
識別子タイプ URI
関連識別子 http://www.elsevier.com/locate/polymer
関連名称
関連名称 http://www.elsevier.com/locate/polymer
DOI
関連識別子
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
関連名称 10.1016/j.polymer.2008.10.022
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
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