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Rheology/morphology interactions in polypropylene/polyamide-6 nanocomposites

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Abstract

Polypropylene/polyamide-6 (PP/PA-6) blends and their nanocomposites with unmodified and organically treated layered silicates (montmorillonite) were prepared in a melt compounding process to explore their mechanical performance. The rheology and morphology of these materials was studied. It could be shown that in all cases the inorganic filler enriched in the PA phase, resulting in a phase coarsening of the PP/PA nanocomposite as compared to the non-filled PP/PA blend. The mechanical properties of these nanoblends are consequently only slightly better than the pure polymers with respect to the modulus, while the impact level is below the pure polymers, reflecting the heterogeneity of the nanoblend.

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Acknowledgments

This work was co-financed by the Austrian Forschungsförderungsfonds für die Gewerbliche Wirtschaft (FFF) under project number 805.210 and by the European Commission under the FP5 program “MeltNanocomp” (G5RD-CT-200-00348). The authors want to thank Bernhard Knogler (Borealis) for carrying out the rheological investigations.

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Authors and Affiliations

  1. Borealis GmbH, St. Peter Str. 25, 4021, Linz, Austria

    Markus Gahleitner & Klaus Bernreitner

  2. Leibniz Institute for Polymer Research Dresden (IPF), Hohe Str. 6, 01069, Dresden, Germany

    Bernd Kretzschmar & Doris Pospiech

  3. DSM Research B.V., P.O. Box 18, 6160 MD, Geleen, The Netherlands

    Gerhard Van Vliet

  4. POLY Université Catholique Louvain-la-Neuve, Croix du Sud 1, 1348, Louvain-la-Neuve, Belgium

    Jacques Devaux

  5. Centre for Electron Microscopy Graz (ZFE), Steyrergasse 17, 8010, Graz, Austria

    Elisabeth Ingolic

Authors
  1. Markus Gahleitner
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  2. Bernd Kretzschmar
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  3. Gerhard Van Vliet
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  4. Jacques Devaux
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  5. Doris Pospiech
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  6. Klaus Bernreitner
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  7. Elisabeth Ingolic
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Correspondence to Markus Gahleitner.

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Gahleitner, M., Kretzschmar, B., Vliet, G.V. et al. Rheology/morphology interactions in polypropylene/polyamide-6 nanocomposites. Rheol Acta 45, 322–330 (2006). https://doi.org/10.1007/s00397-005-0029-3

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  • DOI: https://doi.org/10.1007/s00397-005-0029-3

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