Effects of Melt-Spinning Speed on Structure Development of Polypropylene Fiber After Necking
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- Koike Naoki
- Faculty of Textile Science and Technology, Shinshu University
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- Tomisawa Ren
- Faculty of Textile Science and Technology, Shinshu University
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- Ikaga Toshifumi
- Faculty of Textile Science and Technology, Shinshu University
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- Kim KyoungHou
- Faculty of Textile Science and Technology, Shinshu University
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- Ohkoshi Yutaka
- Faculty of Textile Science and Technology, Shinshu University Institute for Fiber Engineering, Shinshu University
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- Okada Kazuyuki
- Toray Research Center, Inc
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- Masunaga Hiroyasu
- Japan Synchrotron Radiation Research Institute
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- Kanaya Toshiji
- High Energy Accelerator Research Organization
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- Katsuta Hiroo
- Toray Industries, Inc
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- Funatsu Yoshitsugu
- Toray Industries, Inc
抄録
<p>The effects of melt-spinning speed (400–1200 m/min) on fiber structure development after necking were analyzed by wide-angle X-ray diffraction (WAXD) / small-angle X-ray scattering (SAXS) images taken with the time resolution of 0.19–0.34 ms during continuous drawing under the same drawing stress. Whereas an a*-axis oriented crystal and a low-oriented long-period structure was formed at lower speeds, a c-axis oriented crystal and highly oriented long-period structure were formed at higher speed. The long-period structure and low-oriented crystal survived for several hundred microseconds after necking, and after the breakdown of that structure, a highly c-axis oriented long-period structure and mesophase were reconstructed. A longer time was required for the structural change in the fibers spun at lower speed, likely because of stress bearing of the surviving a*-axis oriented crystals.</p>
収録刊行物
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- Journal of Fiber Science and Technology
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Journal of Fiber Science and Technology 76 (5), 161-169, 2020-05-30
一般社団法人 繊維学会
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詳細情報 詳細情報について
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- CRID
- 1390285300160619904
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- NII論文ID
- 130007848943
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- ISSN
- 21897654
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可