The effect of carbon nanotube hydrophobicity on the mechanical properties of carbon nanotube-reinforced thermoplastic polyurethane nanocomposites

Authors

  • Simon Smart,

    1. School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
    2. ARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
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  • David Fania,

    1. School of Natural Sciences, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
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  • Adriyan Milev,

    1. School of Natural Sciences, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
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  • G. S. Kamali Kannangara,

    1. School of Natural Sciences, University of Western Sydney, Locked Bag 1797, Penrith South DC 1797, Australia
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  • Max Lu,

    1. ARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
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  • Darren Martin

    Corresponding author
    1. ARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
    • ARC Centre for Functional Nanomaterials, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD 4072, Australia
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Abstract

Double walled carbon nanotubes (DWNT) were functionalized by reacting methanol, dodecylamine, or octadecylamine with a toluene 2,4-diisocyanate linker through a two-stage reaction procedure. TGA coupled with FTIR analysis of both the decomposition products and the DWNT samples demonstrated that the functionalization procedure was successful and proceeded as expected for all samples. A preliminary investigation of the reinforcing capabilities of the functionalized DWNT in a thermoplastic polyurethane host polymer was then conducted. Tensile testing of the resultant nanocomposites demonstrated that the octadecylamine functionality provided the greatest enhancement in tensile strength and toughness. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

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