Novel materials from unsaturated polyester resin/styrene/tung oil blends with high impact strengths and enhanced mechanical properties

Authors

  • Kunal Das,

    1. Department of Polymer Science and Technology, University College of Science and Technology, University of Calcutta, 92 APC Road, Kolkata 700009, India
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  • Dipa Ray,

    Corresponding author
    1. Department of Polymer Science and Technology, University College of Science and Technology, University of Calcutta, 92 APC Road, Kolkata 700009, India
    • Department of Polymer Science and Technology, University College of Science and Technology, University of Calcutta, 92 APC Road, Kolkata 700009, India
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  • Chitrita Banerjee,

    1. Department of Polymer Science and Technology, University College of Science and Technology, University of Calcutta, 92 APC Road, Kolkata 700009, India
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  • N. R. Bandyopadhyay,

    1. School of Materials Science and Engineering, Bengal Engineering and Science University, Shibpur, Howrah 711103, India
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  • Amar K. Mohanty,

    1. Bioproducts Discovery and Development Centre, Department of Plant Agriculture, University of Guelph, Crop Science Building, Guelph N1G12W1, Ontario, Canada
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  • Manjusri Misra

    1. School of Engineering, Thornbrough Building, University of Guelph, Guelph N1G2W1, Ontario, Canada
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Abstract

A novel material was prepared through the blending of an unsaturated polyester resin/styrene mix with tung oil, which offered improved impact strength, creep resistance, modulus, and hardness. A nanoindentation technique was used to investigate the mechanical properties. With the incorporation of 1 wt % tung oil into the unsaturated polyester matrix, the impact strength, modulus, and hardness increased by 15, 20, and 41%, respectively. The impact-fractured surfaces were examined with scanning electron microscopy. The dynamic mechanical analysis was performed with a nanoindentation technique. The storage and loss modulus values were determined under cyclic loading as a function of indentation. The flexural properties also significantly increased with the incorporation of tung oil. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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