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Interval Analysis: A New Tool for the Characterization of an Epoxy-Amine/Aluminum System

Pomes-Hadda, Mickaël and Aufray, Maëlenn and Diaham, Sombel Interval Analysis: A New Tool for the Characterization of an Epoxy-Amine/Aluminum System. (2015) Polymers, 7 (4). 644-654. ISSN 2073-4360

(Document in English)

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Official URL: http://dx.doi.org/10.3390/polym7040644


Epoxy-amine/aluminum chemical systems or sandwich structures with and without interphase formation are prepared using two different curing cycles and are characterized with dielectric spectroscopy. The sample without interphase formation is obtained when the reaction between epoxy and amine groups is favored, which occurs at high temperature. The interphase formation results from the reaction between the amine group and aluminum surface at room temperature. Dielectric spectra are fitted using the Set Inversion Via Interval Analysis (SIVIA) algorithm applied to DiElectric spectroscopy algorithm (SADE) developed using the method of intervals analysis. A new approach is implemented using a sum of Debye relaxations to optimize and guarantee the fitting. The results achieved show a distribution of relaxation times, which always take place at the same time as demonstrated. In this study, five Debye relaxations were found which fit the β-relaxation with our model. Finally, we showed that the more intensive of our five β-relaxations follows the Arrhenius law.

Item Type:Article
Additional Information:Thanks to MDPI editor. The definitive version is available at http://www.mdpi.com/ The original PDF of the article can be found at Polymers website : http://www.mdpi.com/2073-4360/7/4/644
HAL Id:hal-01360663
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
French Natinal Research Agency
Deposited On:24 Aug 2016 10:25

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