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Crystallization behavior of polycaprolactone/babassu compounds

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Abstract

Polycaprolactone/babassu compounds were prepared in a laboratory internal mixer, their melt crystallization behavior was investigated using a differential scanning calorimeter, and their kinetics was correlated using the Pseudo-Avrami model, with cooling rates ranging from 2.5 to 15 °C min−1. Babassu filler did not affect significantly crystallization parameters, with maximum differences of 1.2 K in temperature and 3% in crystallinity, within experimental uncertainty. Regarding Pseudo-Avrami parameters, data were correlated for the interval 5–95% conversion, which seems to be appropriate for processing applications; the uncertainty associated with Pseudo-Avrami individual parameters is less than 1%, whereas the “rate parameter” K was found to be well represented by a quadratic function.

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Acknowledgements

The authors are indebted to CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—CAPES PROBRAL Program) and DAAD (Deutscher Akademischer Austauschdienst), for the financial support and scholarships; and to MAPA for the donation of polymer and filler.

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Authors and Affiliations

  1. Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, 28359, Bremen, Germany

    Hannes Schäfer, Renate M. R. Wellen & Katharina Koschek

  2. Faculty 2 Biology/Chemistry, University of Bremen, 28359, Bremen, Germany

    Hannes Schäfer

  3. Department of Materials Engineering, Federal University of Campina Grande, Campina Grande, 58249-140, Brazil

    Lizzia T. A. Reul, Fernanda M. Souza, Renate M. R. Wellen, Laura H. Carvalho & Eduardo L. Canedo

  4. Department of Materials Engineering, Federal University of Paraíba, João Pessoa, 58051-085, Brazil

    Renate M. R. Wellen

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  1. Hannes Schäfer
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  2. Lizzia T. A. Reul
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  3. Fernanda M. Souza
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  4. Renate M. R. Wellen
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  5. Laura H. Carvalho
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  6. Katharina Koschek
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  7. Eduardo L. Canedo
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Correspondence to Renate M. R. Wellen.

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Schäfer, H., Reul, L.T.A., Souza, F.M. et al. Crystallization behavior of polycaprolactone/babassu compounds. J Therm Anal Calorim 143, 2963–2972 (2021). https://doi.org/10.1007/s10973-020-09433-0

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  • DOI: https://doi.org/10.1007/s10973-020-09433-0

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