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Application of Romero García method to the degradation process of DGEBA/ETDA filled with ultra fine metallic copper

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Summary

The thermal properties of an epoxy resin (diglycidyl ether Bisphenol A, DGEBA) cured with a primary amine (ethylenediamine, ETDA) and filled with 10, 20 and 30 wt. % of ultra fine copper particles were analyzed. The thermal results were evaluated by means of the Romero-Garcia method, which allowed to obtain the resin degradation kinetic parameters, as well as the possible decomposition mechanism. From the obtained results is possible to infer that higger copper content strongly affects the degradation process of the epoxy resin, which causes a drop off on the composites thermal stability. This behavior could be attributed to water presence, being this effect less pronounced for the resin with 10 wt. % copper and unfilled resin. Regarding to decomposition mechanism, three way transport showed the best correlation for all samples.

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Authors and Affiliations

  1. Centro de Química, Laboratorio de Polímeros, Instituto Venezolano de Investigaciones Científicas (IVIC), Apdo 21827, Caracas, 1020 A, Venezuela

    C. Albano, N. Domínguez & Y. Sánchez

  2. Instituto Universitario de Tecnología de Valencia, Valencia, Venezuela

    Z. Brito

  3. Facultad de Ingeniería, Escuela de Ingeniería Química, Universidad Central de Venezuela, Los Chaguaramos, Caracas, 1041 A, Venezuela

    C. Albano & H. Paredes

Authors
  1. C. Albano
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  2. Z. Brito
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  3. H. Paredes
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  4. N. Domínguez
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  5. Y. Sánchez
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Correspondence to C. Albano.

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Albano, C., Brito, Z., Paredes, H. et al. Application of Romero García method to the degradation process of DGEBA/ETDA filled with ultra fine metallic copper. Polym. Bull. 54, 399–407 (2005). https://doi.org/10.1007/s00289-005-0394-1

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  • DOI: https://doi.org/10.1007/s00289-005-0394-1

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