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Structure and mechanical behaviors of thermoplastic polyurethane thin film coated polyamide 6 fibers part II. A solution coating method

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Abstract

Thermoplastic polyurethane thin film (TPU) coated PA6 fibers were prepared by dipping fibers into a TPU solution. The thickness of the thin film coating was 20 μ m. A series of polymer glycols which include polycarbonate, polyether and polyester were used for the preparation of the TPU. Both tensile strength and elongation at break of the TPU coated fibers increased although both magnitudes of the TPUs are much lower than for the original PA6 fibers. Also there was a significant improvement in the abrasion resistance TPU coated PA6 fibers. The PA6 fibers are prone to micro-cracks when under mechanical stress but the TPU thin film coating delayed the formation of the micro-cracks, thereby improving the mechanical properties of PA6 fibers. The theoretical investigation on the effect of interface interaction region using the viscous flow model described could clearly explain the effect of the same on the mechanical performance of TPU coated PA6 fibers.

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Acknowledgements

The author BJ thanks Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan in the form of scholarship for the completion of this work. Thanks to Dr. Ken Kojio and Dr. Suguru Motokucho, Nagasaki University for the fruitful discussions during the study.

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  1. Baiju John

    Present address: Advanced Polymeric Nanostructured Materials Engineering Laboratory, TOYOTA Technological Institute, Nagoya, 468-8511, Japan

Authors and Affiliations

  1. Division of Materials Science, Graduate School of Science and Technology, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki, 852-8521, Japan

    Baiju John & Mutsuhisa Furukawa

  2. Nagasaki Institute of Polyurethane Science and Technology, Nagasaki University, 3-5-1-903, Baikoen, Chuo-ku, Fukuoka, 810-0035, Japan

    Mutsuhisa Furukawa

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  1. Baiju John
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  2. Mutsuhisa Furukawa
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Correspondence to Baiju John.

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John, B., Furukawa, M. Structure and mechanical behaviors of thermoplastic polyurethane thin film coated polyamide 6 fibers part II. A solution coating method. J Polym Res 19, 9764 (2012). https://doi.org/10.1007/s10965-011-9764-6

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  • DOI: https://doi.org/10.1007/s10965-011-9764-6

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