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Evaluation of mechanical, optical and thermal properties of PVA nanocomposites embedded with Fe2O3 nanofillers and the investigation of their thermal decomposition characteristics under non-isothermal heating condition

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Abstract

Magnetic Fe2O3 nanopowder was synthesized and characterized by various analytical techniques. The PVA/Fe2O3 nanocomposites were prepared by solution casting method to investigate the effect of nanofillers on their physicochemical properties. The analytical tools such as FTIR, UV–visible spectra and XRD were used to analyze the structure of Fe2O3 nanopowder and PVA/Fe2O3 nanocomposites. The uniform distribution of the Fe2O3 nanofillers on the PVA matrix was inspected using SEM. The particle size of the crystalline Fe2O3 nanofillers was observed to be less than 30 nm from the TEM micrographs. The optical characteristics of the prepared samples were investigated by analyzing their UV–visible spectra. The bandgap of PVA nanocomposites was lower than for pure PVA due to the dispersed Fe2O3 nanofillers in the PVA matrix. The thermal properties of pristine PVA and PVA/Fe2O3 nanocomposites were investigated by TGA. The PVA/Fe2O3 nanocomposite systems exhibited the improved thermal stability. The thermal degradation mechanism of PVA/Fe2O3 nanocomposite system was inspected in depth at five different heating rates under non-isothermal conditions. The electrical and mechanical properties of PVA were enhanced remarkably while increasing the % weight loading of nanopowder.

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Authors and Affiliations

  1. Department of Physics, Hindustan Institute of Technology and Science, Padur, Chennai, Tamil Nadu, 603103, India

    V. Parthasarathy & J. Selvi

  2. Department of Chemical Engineering, SSN College of Engineering, Kalavakkam, Chennai, Tamil Nadu, 603110, India

    P. Senthil Kumar

  3. Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan

    R. Anbarasan

  4. Department of Physics, Anand Institute of Higher Technology, Kazhipattur, Chennai, Tamil Nadu, 603103, India

    S. Mahalakshmi

Authors
  1. V. Parthasarathy
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  2. J. Selvi
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  3. P. Senthil Kumar
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  4. R. Anbarasan
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  5. S. Mahalakshmi
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Correspondence to V. Parthasarathy.

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Parthasarathy, V., Selvi, J., Senthil Kumar, P. et al. Evaluation of mechanical, optical and thermal properties of PVA nanocomposites embedded with Fe2O3 nanofillers and the investigation of their thermal decomposition characteristics under non-isothermal heating condition. Polym. Bull. 78, 2191–2210 (2021). https://doi.org/10.1007/s00289-020-03206-3

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  • DOI: https://doi.org/10.1007/s00289-020-03206-3

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