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Biodegradable starch/poly (vinyl alcohol) film reinforced with titanium dioxide nanoparticles

International Journal of Minerals, Metallurgy, and Materials volume 20, pages 1001–1011 (2013)Cite this article

Abstract

Biodegradable starch/poly (vinyl alcohol)/nano-titanium dioxide (ST/PVA/nano-TiO2) nanocomposite films were prepared via a solution casting method. Their biodegradability, mechanical properties, and thermal properties were also studied in this paper. A general full factorial experimental approach was used to determine effective parameters on the mechanical properties of the prepared films. ST/PVA/TiO2 nanocomposites were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results of mechanical analysis show that ST/PVA films with higher contents of PVA have much better mechanical properties. In thermal analysis, it is found that the addition of TiO2 nanoparticles improves the thermal stability of the films. SEM micrographs, taken from the fracture surface of samples, illustrate that the addition of PVA makes the film softer and more flexible. The results of soil burial biodegradation indicate that the biodegradability of ST/PVA/TiO2 films strongly depends on the starch proportion in the film matrix. The degradation rate is increased by the addition of starch in the films.

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Authors and Affiliations

  1. Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, 14778-93855, Iran

    Zahra Hejri & Ali Akbar Seifkordi

  2. Department of Chemical Engineering, Ferdowsi University of Mashhad, Mashhad, 91779-48974, Iran

    Ali Ahmadpour

  3. Department of Materials Science and Engineering, Engineering Faculty, Shiraz University, Shiraz, 71946-84471, Iran

    Seyed Mojtaba Zebarjad

  4. Research Institute of Food Science and Technology, Mashhad, 91851-76933, Iran

    Abdolmajid Maskooki

Authors
  1. Zahra Hejri
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  2. Ali Akbar Seifkordi
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  3. Ali Ahmadpour
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  4. Seyed Mojtaba Zebarjad
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  5. Abdolmajid Maskooki
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Correspondence to Zahra Hejri.

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Hejri, Z., Seifkordi, A.A., Ahmadpour, A. et al. Biodegradable starch/poly (vinyl alcohol) film reinforced with titanium dioxide nanoparticles. Int J Miner Metall Mater 20, 1001–1011 (2013). https://doi.org/10.1007/s12613-013-0827-z

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  • DOI: https://doi.org/10.1007/s12613-013-0827-z

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