Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2014-08-06 |
タイトル |
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タイトル |
Effect of drawing stress on mesophase structure formation of poly(ethylene 2,6-naphthalene dicarboxylate) fiber just after the neck-drawing point |
言語 |
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言語 |
eng |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.polymer.2012.07.043 |
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関連名称 |
10.1016/j.polymer.2012.07.043 |
キーワード |
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主題 |
Poly(ethylene 2,6-naphthalene dicarboxylate), Mesophase structure, CO2 laser-heated drawing |
資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
著者 |
Kim, Kyoung-Hou
Aida, Ryo
Kang, Young-Ah
Ikaga, Toshifumi
Ohkoshi, Yutaka
Wataoka, Isao
Urakawa, Hiroshi
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信州大学研究者総覧へのリンク |
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氏名 |
Kim, Kyoung-Hou |
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URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.OpLajFkV.html |
信州大学研究者総覧へのリンク |
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氏名 |
Ohkoshi, Yutaka |
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URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.jUkejekV.html |
出版者 |
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出版者 |
ELSEVIER SCI LTD |
引用 |
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内容記述 |
POLYMER. 53(19):4272-4279 (2012) |
書誌情報 |
POLYMER
巻 53,
号 19,
p. 4272-4279,
発行日 2012-08-31
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抄録 |
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内容記述 |
The structural development of poly(ethylene 2,6-naphthalene dicarboxylate) (PEN) fibers was analyzed by in situ X-ray diffraction and fiber temperature measurements. The PEN fiber was drawn continuously under three drawing stresses, where the neck-drawing point was fixed accurately by CO2 laser irradiation heating. The developed crystal structures of the drawn fibers depended on the drawing stresses, that is, only the alpha-crystal was obtained under a drawing stress of 148 MPa, an alpha-rich mixed crystal was obtained for 54 MPa, and a beta-rich mixed crystal was obtained under 23 MPa stress. Fiber containing over 70% beta-crystal was obtained in the third case. Orientation-induced crystallization rates (K) and crystallization induction times (t(0)) were estimated for the three drawing stresses: K = 2210 s(-1) and t(0) = 0.5 ms for 148 MPa, K = 940 s(-1) and t(0) = 1.0 ms for 54 MPa, and K= 655 s(-1) and t(0) = 4.0 ms for 23 MPa. In addition, the drawing stress acted as a definitive influence not only on the resulting crystal form but also on the chain conformation of the mesophase structure. The d-spacing of the (001') diffraction increased with drawing stress, and the longer (001') spacing generated the alpha-crystal while the comparatively shorter (001') spacing yielded the beta-crystal. The d-spacings of 1.27 and 1.23 nm for the drawing stresses of 148 and 23 MPa, respectively, were somewhat shorter than the c-axis lengths of the alpha- and beta-crystals of 1.32 and 1.27 nm, respectively. |
資源タイプ(コンテンツの種類) |
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内容記述 |
Article |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0032-3861 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00776983 |
権利 |
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権利情報 |
Copyright© 2012 Elsevier Ltd. |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
WoS |
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URL |
http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000308576300030 |