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Crystallization behaviour and mechanical properties of polypropylene-based composites

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Abstract

The influence of glass fibres on the primary nucleation process, isothermal radial growth rate of spherulites and overall kinetic rate constant of isotactic polypropylene (iPP) has been examined. The polypropylene was also modified by means of acrylic acid (iPP*) in order to improve the adhesion between the matrix and the fibres, and the relative properties were compared with those concerning the composites having as matrix plain MR Moreover the mechanical properties of injection-moulded composites containing iPP and iPP* have been studied. These properties improved on increasing the fibre content. It was found that for the same glass-fibre content better values of the elongation at break and creep are observed in the case of reinforced polypropylenes having as matrix acrylic acid modified polypropylene.

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Authors and Affiliations

  1. Istituto di Ricerche su Tecnologia dei Polimeri e Reologia del CNR, Via Toiano 6, 80072, Arco Felice, Napoli, Italy

    Maurizio Avella, Ezio Martuscelli & Claudio Sellitti

  2. Himont Centro Ricerche “G. Natta”, Ferrara, Italy

    Enea Garagnani

Authors
  1. Maurizio Avella
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  2. Ezio Martuscelli
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  3. Claudio Sellitti
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  4. Enea Garagnani
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Avella, M., Martuscelli, E., Sellitti, C. et al. Crystallization behaviour and mechanical properties of polypropylene-based composites. J Mater Sci 22, 3185–3193 (1987). https://doi.org/10.1007/BF01161181

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  • DOI: https://doi.org/10.1007/BF01161181

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