Effects of Draw Ratio and Additive on Knot-Pull Breaking Phenomenon in a Polypropylene Monofilament
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- Kunimitsu Tatsuma
- Faculty of Textile Science and Technology, Shinshu University
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- Ikeda Chisa
- Faculty of Textile Science and Technology, Shinshu University
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- Oshima Shuntaro
- 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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- Takata Masayuki
- Mitsubishi Chemical Corporation
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- Yamashita Tomoyoshi
- Mitsubishi Chemical Corporation
抄録
<p>Knot-pull strength is as important as tensile strength, but the mechanism by which the fiber in a knot breaks has not been sufficiently elucidated. In the present study, the effects of the draw ratio and a melt-kneaded additive on the knot-pull strength of polypropylene monofilament, that is, a thick single fiber, were discussed by comparing the tensile and loop strengths of the fiber. The knot deformation behavior during a knot-pull test was also investigated. In contrast to the increase in tensile strength at a high draw ratio, the knot-pull strength was hardly affected by the additive, and the loop strength was reduced by the additive. During a knot-pull test on a high-draw-ratio fiber, the knot thickness continued to decrease to breakage, even after the knot length stopped decreasing. This behavior indicates that the highly drawn fiber breaks at the buckled part in the knot owing to the lateral compressional forces.</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 (12), 403-411, 2020-12-15
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詳細情報 詳細情報について
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- CRID
- 1391694356259845376
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- NII論文ID
- 130007970049
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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