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Study of polyamide 12 crystallization behavior within rotational molding process

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Abstract

Our study is focused on the investigation of polyamide 12 (PA 12) grade behavior in rotational molding process. Hence, some rotational molding tests of polyamide 12 were conducted on a STP LAB 40 machine. To simulate the cooling stage within the rotational molding, the crystallization behavior of polyamide 12 was studied using differential scanning calorimetry technique and the obtained results for non-isothermal crystallization were fitted with Ozawa model. Furthermore, morphology survey has been carried out by a hot stage method using a microscope to investigate the spherulites evolution which depends on the temperature. The micro-tensile properties have been studied using micro-tensile bench (MVTV2) to explain the mechanical behavior of polyamide 12 during crystallization. As a result, the rotational molding of PA 12 was successfully carried out. The simulation of the melting and crystallization stages, by application of Ozawa model coupled with enthalpy method gave a good representation of experimental data on one hand. On the other hand, all characterization revealed useful information to understand the different phenomena that govern the rotational molding process.

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Acknowledgments

The experimental assistances of Macromolecules Laboratory team of EMP [Bordj El Bahri (Algeria)] and PIMM (Paris, France) are gratefully acknowledged. The authors would like to thank these colleagues for valuable contributions and fruitful discussions.

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Authors and Affiliations

  1. Laboratoire de Génie Des Procédés, Ecole Militaire Polytechnique, BP 17, 16111, Bordj El Bahri, Algeria

    S. L. Hafsaoui & R. Mahmoud

  2. PIMM (UMR-CNRS 8006), Arts Et Métiers Paris Tech, 75013, Paris, France

    S. L. Hafsaoui, S. Farzaneh & A. Tcharkhtchi

Authors
  1. S. L. Hafsaoui
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  2. R. Mahmoud
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  3. S. Farzaneh
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  4. A. Tcharkhtchi
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Correspondence to A. Tcharkhtchi.

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Hafsaoui, S.L., Mahmoud, R., Farzaneh, S. et al. Study of polyamide 12 crystallization behavior within rotational molding process. Iran Polym J 22, 187–197 (2013). https://doi.org/10.1007/s13726-012-0118-y

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  • DOI: https://doi.org/10.1007/s13726-012-0118-y

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