Rheological and mechanical behavior of LDPE/calcium carbonate nanocomposites and microcomposites

Authors

  • Francesco Paolo La Mantia,

    1. Università di Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali – Viale delle Scienze, 90128 Palermo, Italy
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  • Marco Morreale,

    Corresponding author
    1. Università degli Studi di Enna “Kore”, Facoltà di Ingegneria, Architettura e delle Scienze Motorie – Cittadella Universitaria, 94100 Enna, Italy
    • Facoltà di Ingegneria, Università degli Studi di Enna “Kore, ” Architettura e delle Scienze Motorie–Cittadella Universitaria, 94100 Enna, Italy
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  • Roberto Scaffaro,

    1. Università di Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali – Viale delle Scienze, 90128 Palermo, Italy
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  • Simona Tulone

    1. Università di Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali – Viale delle Scienze, 90128 Palermo, Italy
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Abstract

The increase of the interest in polymer nanocomposites has been leading to continuous growing search toward nanofillers alternative to the widely known clay-based ones. One of these possible alternatives is represented by calcium carbonate nanoparticles, which have not been widely investigated in such context. In this article, a study on the rheological and morphological behavior of different low density polyethylene-calcium carbonate nanocomposites, compared with a reference calcium carbonate microcomposite, is presented. Several different nanosized calcium carbonates at different amounts were used. The results from the rheological and mechanical tests outlined that only minor changes occur when the amount is up to 2 wt %. The use of higher filler concentrations or the increase in the processing time can significantly affect this behavior. SEM analysis allowed deeper understanding of these phenomena. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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