Optimization of Biodegradable Nanocomposites Based on aPLA/PCL Blends for Food Packaging Applications

Authors

  • Lluís Cabedo,

    1. Department of Industrial Systems Engineering and Design, Area of Materials Science, ESTCE, University Jaume I, 12071 Castelló, Spain. Fax: (+34) 964 72 81 70
    2. Packaging Group, IATA, CSIC, Aptdo. Correos 73, 46100 Burjassot, Spain
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  • José Luis Feijoo,

    1. Departament of Materials Science. University Simón Bolívar, 89000 Caracas, Venezuela
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  • María Pilar Villanueva,

    1. Department of Industrial Systems Engineering and Design, Area of Materials Science, ESTCE, University Jaume I, 12071 Castelló, Spain. Fax: (+34) 964 72 81 70
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  • José María Lagarón,

    1. Packaging Group, IATA, CSIC, Aptdo. Correos 73, 46100 Burjassot, Spain
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  • Enrique Giménez

    Corresponding author
    1. Department of Industrial Systems Engineering and Design, Area of Materials Science, ESTCE, University Jaume I, 12071 Castelló, Spain. Fax: (+34) 964 72 81 70
    • Department of Industrial Systems Engineering and Design, Area of Materials Science, ESTCE, University Jaume I, 12071 Castelló, Spain. Fax: (+34) 964 72 81 70
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Abstract

Biodegradable blends of amorphous poly(lactic acid) (aPLA) and polycaprolactone (PCL) and nanocomposites of these blends were developed by melt blending. A morphological study of the bioblends was carried out by means of WAXS and SEM showing immiscible behavior. The nanocomposites were also characterized morphologically by WAXS, TEM and SEM, revealing high degree of interaction of the nanoclays with the aPLA. Mechanical, thermal and gas barrier properties of the different blends and nanocomposites were studied and the effect of blending and clay addition on the above-mentioned properties was evaluated.

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