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Microstructure and shape memory effect of acidic carbon nanotubes reinforced polyvinyl alcohol nanocomposites

Authors

  • Fei-Peng Du,

    1. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China
    2. State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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  • En-Zhou Ye,

    1. School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China
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  • Chak-Yin Tang,

    1. Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
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  • Sun-Pui Ng,

    1. Hong Kong Community College, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, China
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  • Xing-Ping Zhou,

    Corresponding author
    1. State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
    • State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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  • Xiao-Lin Xie

    1. State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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Abstract

Specimens of acidic multi-walled carbon nanotubes (AMWNTs) reinforced polyvinyl alcohol (PVA) nanocomposites (AMWNTs-PVA) were prepared using different amounts of AMWNTs by the traditional solution casting, involving ultrasonic wave agitation. The microstructures and tensile properties of AMWNTs-PVA were investigated by scanning electron microscopy, dynamic mechanical analysis, and quasi-static tensile testing. AMWNTs had good compatibility with PVA and dispersed evenly in the PVA matrix. The incorporation of AMWNTs improved the tensile modulus and strength of the PVA. The shape recovery testing revealed the shape recovery capacity of AMWNTs-PVA. It was observed that the recovery ratio increased, and the shape recovery rate slightly decrease with the increase of AMWNTs content. The results showed that the AMWNTs had strong interaction with the segments of the PVA and hence affected the shape recovery behavior of PVA. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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