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Enhanced thermo-mechanical performance and strain-induced band gap reduction of TiO2@PVC nanocomposite films

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Abstract

The present paper reports the fabrication of TiO2@PVC nanocomposites by incorporating TiO2 in polyvinyl chloride (PVC) followed by solution casting to prepare TiO2@PVC nanocomposite thin films. The as-prepared TiO2@PVC nanocomposite films were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, high-resolution transmission electron microscopy, thermogravimetric analysis, optical spectroscopy and mechanical strength analyses. The TiO2@PVC nanocomposites were found to be thermally and mechanically more stable compared with pure PVC. The anatase TiO2 in the TiO2@PVC nanocomposite showed a lower indirect band gap compared with pure TiO2, which can be attributed to the strain within the nanocomposite, thereby affecting the band-structure of the nanocomposite. Significant enhancement in the mechanical properties of TiO2@PVC compared with pure PVC was observed with a 10 wt% TiO2 loading, such as a 50% increase in Young’s modulus and almost 100% improvement in the tensile strength.

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Acknowledgement

This work was supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2014R1A6A1031189).

Electronic Supplementary Material

Supplementary material pertaining to this article is available on the Bulletin of Materials Science website (www.ias.ac.in/matersci).

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Authors and Affiliations

  1. School of Chemical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea

    MUDASSIR HASAN & MOONYONG LEE

  2. School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea

    ARGHYA NARAYAN BANERJEE

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  1. MUDASSIR HASAN
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  2. ARGHYA NARAYAN BANERJEE
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  3. MOONYONG LEE
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Correspondence to MOONYONG LEE.

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HASAN, M., BANERJEE, A.N. & LEE, M. Enhanced thermo-mechanical performance and strain-induced band gap reduction of TiO2@PVC nanocomposite films. Bull Mater Sci 38, 283–290 (2015). https://doi.org/10.1007/s12034-014-0831-6

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  • DOI: https://doi.org/10.1007/s12034-014-0831-6

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