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Cold-Curing Structural Epoxy Resins: Analysis of the Curing Reaction as a Function of Curing Time and Thickness

Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
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Materials 2014, 7(9), 6832-6842; https://doi.org/10.3390/ma7096832
Received: 23 July 2014 / Revised: 22 August 2014 / Accepted: 5 September 2014 / Published: 22 September 2014
(This article belongs to the Section Advanced Composites)
The curing reaction of a commercial cold-curing structural epoxy resin, specifically formulated for civil engineering applications, was analyzed by thermal analysis as a function of the curing time and the sample thickness. Original and remarkable results regarding the effects of curing time on the glass transition temperature and on the residual heat of reaction of the cold-cured epoxy were obtained. The influence of the sample thickness on the curing reaction of the cold-cured resin was also deeply investigated. A highly exothermal reaction, based on a self-activated frontal polymerization reaction, was supposed and verified trough a suitable temperature signal acquisition system, specifically realized for this measurement. This is one of the first studies carried out on the curing behavior of these peculiar cold-cured epoxy resins as a function of curing time and thickness. View Full-Text
Keywords: cold-cured epoxy resin; curing; frontal polymerization cold-cured epoxy resin; curing; frontal polymerization
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Corcione, C.E.; Freuli, F.; Frigione, M. Cold-Curing Structural Epoxy Resins: Analysis of the Curing Reaction as a Function of Curing Time and Thickness. Materials 2014, 7, 6832-6842.

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