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Rheological techniques for the determination of the crystallization kinetics of a polypropylene–EPR copolymer

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Abstract

In this article, we show that the crystallization behaviour of a rubber-filled polypropylene, under isothermal conditions, can be monitored by means of parallel plate rheometry and differential scanning calorimetry. Data collected with different instruments can be compared only after performance of accurate temperature calibration. The complex modulus as obtained from dynamic mechanical measurements can be related to the crystalline content by use of appropriate mathematical relationships. An empirical power law model is used to correlate the crystalline content to the rheological function. Excellent agreement between rheological and calorimetric data is found. Furthermore, it is shown that rheology can be used to achieve additional information on the structural evolution of the crystallizing system.

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Authors and Affiliations

  1. Dipartimento di Ingegneria, Università degli Studi del Sannio, Piazza Roma 21, 82100, Benevento, Italy

    Stefano Acierno

  2. Dipartimento di Ingegneria Chimica, Università degli Studi di Napoli Federico II, Piazzale Tecchio 80, 80125, Naples, Italy

    Rossana Pasquino & Nino Grizzuti

Authors
  1. Stefano Acierno
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  2. Rossana Pasquino
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  3. Nino Grizzuti
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Correspondence to Stefano Acierno.

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Acierno, S., Pasquino, R. & Grizzuti, N. Rheological techniques for the determination of the crystallization kinetics of a polypropylene–EPR copolymer. J Therm Anal Calorim 98, 639–644 (2009). https://doi.org/10.1007/s10973-009-0508-3

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  • DOI: https://doi.org/10.1007/s10973-009-0508-3

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