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Creep measurements on “in situ” compatibilized polypropylene/polyamide-6 blends

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Summary

Rheological properties of Polypropylene/Polyamide-6 blends at different degrees of compatibilization were studied at 240°C. The compatibilizing agent was synthesized in situ during the mixing procedure. Creep measurements at constant stress levels were performed on a Rheometrics Stress Rheometer.

The morphology of the blends was determined by scanning and transmission electron microscopy before and after the shear experiments. No changes of the morphology occurred during the experiments.

In the creep experiments the flow zone was reached. Data of that region such as zero shear viscosity, creep compliance and terminal retardation time were determined.

The values of these quantities increased with increasing amount of the compatibilizing agent.

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Authors and Affiliations

  1. Institut für Makromolekulare Chemie, Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs-Universität Freiburg i. Br., Stefan-Meier-Strasse 31, W-7800, Freiburg i. Br., Germany

    S. Schlag, J. Rösch & Chr. Friedrich

Authors
  1. S. Schlag
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  2. J. Rösch
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  3. Chr. Friedrich
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Schlag, S., Rösch, J. & Friedrich, C. Creep measurements on “in situ” compatibilized polypropylene/polyamide-6 blends. Polymer Bulletin 30, 603–608 (1993). https://doi.org/10.1007/BF00296481

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  • DOI: https://doi.org/10.1007/BF00296481

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