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Phenomenological model for the reaction order n in the kinetics of curing an elastomer EPDM

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Abstract

The precise control of curing reaction parameters allows a better crosslinking polymer. Modelling and optimization of this process require a correct kinetic of curing model. The kinetics of the crosslinking reaction is studied for the ethylene propylene diene monomer (EPDM) synthetic elastomer by mobile die rheometer (MDR). The kinetic parameters of reaction were calculated from Kamal-Ryan, Sestak-Berggren, and the Isayev-Deng methods at different temperatures. An Arrhenius-type function for the order of reaction n is introduced to improve the adjusting. Finally, a graphical and analytical description of the cure kinetics was developed. The order of reaction is predicted to better establishment of processing time. It was noted that for EPDM at higher temperatures, the increase of the rate of reaction occurs in short period of time, which could cause premature curing if the supply system is inadequate.

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Authors and Affiliations

  1. Universidad Autónoma de Zacatecas, Unidad Académica de Ingeniería, Av. López Velarde 801, Zacatecas, Zac, México

    S. Gómez-Jimenez, A. M. Becerra-Ferreiro & E. Jareño-Betancourt

  2. Elastomer Solutions México S de R. L. de C. V., Circuito Fresnillo Poniente 21 s/n, Parque industrial Fresnillo, México, Zacatecas, México

    J. Vázquez-Penagos

Authors
  1. S. Gómez-Jimenez
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  2. A. M. Becerra-Ferreiro
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  3. E. Jareño-Betancourt
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  4. J. Vázquez-Penagos
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Gómez-Jimenez, S., Becerra-Ferreiro, A.M., Jareño-Betancourt, E. et al. Phenomenological model for the reaction order n in the kinetics of curing an elastomer EPDM. MRS Advances 4, 3299–3310 (2019). https://doi.org/10.1557/adv.2019.428

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