Nylon 6 crystal-phase transition in nylon 6/clay/poly(vinyl alcohol) nanocomposites

Authors

  • Li Cui,

    Corresponding author
    1. Key Laboratory of Green Processing and Function Textiles of New Textile Materials (Ministry of Education), Wuhan University of Science and Engineering, Wuhan, China
    • Key Laboratory of Green Processing and Function Textiles of New Textile Materials (Ministry of Education), Wuhan University of Science and Engineering, Wuhan, China
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  • Jen-Taut Yeh

    1. Key Laboratory of Green Processing and Function Textiles of New Textile Materials (Ministry of Education), Wuhan University of Science and Engineering, Wuhan, China
    2. Faculty of Material Science and Engineering, Hubei University, Wuhan, China
    3. Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
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Abstract

A study of the dependence of the poly(vinyl alcohol) (PVA) content on the nylon 6 crystal-phase transition properties and PVA morphologies of nylon 6/clay nanocomposite (NYC)/PVA specimens was conducted. The degree of compatibility between NYC and PVA was examined by dynamic mechanical analysis measurement. The strong hydrogen bonding between the nylon 6 and PVA molecules led to nearly complete inhibition of PVA crystallization when the PVA contents were less than 16.7 wt %. Moreover, scanning electron microscopy analysis indicated that the clays originally present in the nylon 6 matrices migrated gradually into the PVA phases with increasing PVA content in the NYC/PVA series specimens. This interesting migration of clay from nylon 6 to PVA led to a nylon 6 crystal-phase transition from the γ to the α form. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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