Structure and property study of nylon-6/clay nanocomposite fiber

Authors

  • KwanHan Yoon,

    Corresponding author
    1. School of Material and System Engineering, Kumoh National Institute of Technology, 188, Shinpyung-dong, Kumi, Kyungbuk 730-701, Korea
    • School of Material and System Engineering, Kumoh National Institute of Technology, 188, Shinpyung-dong, Kumi, Kyungbuk 730-701, Korea
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  • Malcolm B Polk,

    1. School of Textile and Fiber Engineering, Georgia Institute of Technology, 801 Ferst Drive, Atlanta, GA 30332, USA
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  • Byung G Min,

    1. School of Material and System Engineering, Kumoh National Institute of Technology, 188, Shinpyung-dong, Kumi, Kyungbuk 730-701, Korea
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  • David A Schiraldi

    1. Department of Macromolecular Science and Engineering, Case Western Reserve University, 2100 Adelbert Road, Cleveland, OH 44106, USA
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Abstract

The crystal structures of nylon-6 and nylon-6/clay fibers were investigated on annealing and drawing. Annealing increased the γ-crystalline form of both fibers, as indicated by the DSC curves, and its effect was dominant in nylon-6/clay fiber. On drawing, the γ-crystalline form was easily converted into the α form in nylon-6, whereas it was still observed at a relatively high spin-draw ratio in nylon-6/clay fiber. However, although the α-crystal form was dominant in nylon-6, the γ-crystal form was dominant in nylon-6/clay with annealing and drawing, on the basis of the XRD data. The fast crystallization rate of nylon-6/clay compared with pure nylon-6 was confirmed, on the basis of the Avrami exponent. The initial modulus of nylon-6/clay fiber was 30 % higher than the neat nylon-6 fiber. The reinforcing effect of clay on the dynamic storage modulus was observed. Copyright © 2004 Society of Chemical Industry

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