Study of morphology, mechanical properties, and thermal degradation of polycarbonate-titania nanocomposites as function of titania crystalline phase and content

Authors

  • T.E. Motaung,

    1. Department of Chemistry, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthaditjhaba 9866, South Africa
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  • A.S. Luyt,

    Corresponding author
    1. Department of Chemistry, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthaditjhaba 9866, South Africa
    • Department of Chemistry, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthaditjhaba 9866, South Africa

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  • M.L. Saladino,

    1. Department of Chemistry “S.Cannizzaro,” University of Palermo, Parco d'Orleans II-Viale delle Scienze pad.17, Palermo I-90128, Italy
    2. Centro Grandi Apparecchiature-UniNetLab, University of Palermo, Via F. Marini 14, Palermo I-90128, Italy
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  • E. Caponetti

    1. Department of Chemistry “S.Cannizzaro,” University of Palermo, Parco d'Orleans II-Viale delle Scienze pad.17, Palermo I-90128, Italy
    2. Centro Grandi Apparecchiature-UniNetLab, University of Palermo, Via F. Marini 14, Palermo I-90128, Italy
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Abstract

Titania nanoparticles were prepared using a sol–gel method and calcination at 200°C and 600°C to obtain anatase and rutile phases, respectively. The obtained powders were used to prepare polycarbonate (PC)-titania nanocomposites by melt compounding. The effect of different crystalline phases and amounts of titania, in the range 1–5 wt%, on the morphology, mechanical properties, and thermal degradation kinetics of PC was investigated. The results show that the filler modified the plasticity or rigidity of the polymer and influenced the degradation kinetics, in different ways depending on the type and amount of titania. POLYM. COMPOS., 2012. © 2013 Society of Plastics Engineers

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