Dynamic Viscoelasticity and Fine Structure of Nylon 6 Fibers

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Bibliographic Information

Other Title
  • ナイロン6繊維の動的粘弾性と微細構造

Description

The dynamic viscoelasticity on nylon 6 fibers was measured, and the changes of tan 6 peak (a dispersion) by the drawing or heat-treatment in the range of 80. v120oC were investigated. By drawing, the temperature of tan 6 peak shifted to higher temperature, and its intensity showed the maximum at the draw ratio of two times and decreased thereafter with drawing. On the other hand, by hea treatment, the te perature of t n peak sifted to lower and its intensity increased.<BR>The changes of tan 6 peak were also discussed in comparison with the fine structures, sqch as crystallinity, size of crystallites, and orientation factor of amorpheus chains and crystallites. It has become clear that, the behavior of a dispersion was decided by the density of network structure formed by crystallites and amorphous chains, and the degree of tension of amorphous chains.<BR>In this case, it was suggested that the crystallites would act like crosslinking peints in crosslinked polymers and inhibit the motion of segments in amorphous regions. On this assumption, Shibayama's equation for relationship between T, and crosslink-density was applied to that between a dispersion temperature and network-density formed by crystallites and amorphous chains. The results were found to be satisfactory over the range of measured tem perature.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1973 (5), 1010-1015, 1973-05-10

    The Chemical Society of Japan

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