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Synergistic effect of nucleation and compatibilization on the polylactide and poly(butylene adipate-co-terephthalate) blend films

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Abstract

Polylactide (PLA) films blended with 10 wt% poly(butylene adipate-co-terephthalate) (PBAT) were prepared by using a twin screw extruder in the presence of the nucleating agent of titanium dioxide (TiO2) and the compatibilizers of toluene diisocyanate (TDI) and PLA-grafted-maleic anhydride (PLA-g-MA). The synergistic effect of the nucleation and compatibilization on the properties and crystallization behavior of the PLA/PBAT (PLB) films was explored. The results showed that the addition of TiO2 significantly enhanced the tensile strength and the impact tensile resistance of the PLB films while slightly decreased its thermal stability. In addition, the compatibilizers of TDI and PLA-g-MA in the system not only affected the crystallinity and cold crystallization process of the PLB films, but also increased the mechanical properties of them due to the improvement of the interfacial interaction between PLA and PBAT revealed by the morphological measurement. The synergistic effects of the nucleating agent and the compatibilizer afforded the blend films with increased tensile strength and impact tensile toughness, improved cold crystallization property and χ c.

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Authors and Affiliations

  1. Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla, 90112, Thailand

    Worasak Phetwarotai & Varaporn Tanrattanakul

  2. Bioplastic Research Unit, Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla, 90112, Thailand

    Worasak Phetwarotai & Varaporn Tanrattanakul

  3. Department of Chemistry, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla, 90112, Thailand

    Neeranuch Phusunti

Authors
  1. Worasak Phetwarotai
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  2. Varaporn Tanrattanakul
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  3. Neeranuch Phusunti
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Corresponding author

Correspondence to Worasak Phetwarotai.

Additional information

This work was financially supported by the Prince of Songkla University (No. SCI570376S) and the Development and Promotion of Science and Technology Talents project (DPST).

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Phetwarotai, W., Tanrattanakul, V. & Phusunti, N. Synergistic effect of nucleation and compatibilization on the polylactide and poly(butylene adipate-co-terephthalate) blend films. Chin J Polym Sci 34, 1129–1140 (2016). https://doi.org/10.1007/s10118-016-1834-0

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  • DOI: https://doi.org/10.1007/s10118-016-1834-0

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