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Thermally remendable, weldable, and recyclable epoxy network crosslinked with reversible Diels-alder bonds

dc.contributor.authorLorero, Isaac
dc.contributor.authorRodríguez, A.
dc.contributor.authorCampo, Mónica
dc.contributor.authorGonzález Prolongo, Silvia
dc.date.accessioned2023-09-22T07:21:30Z
dc.date.available2023-09-22T07:21:30Z
dc.date.issued2022
dc.identifier.citationI. Lorero, A. Rodríguez, M. Campo, S.G. Prolongo, Thermally remendable, weldable, and recyclable epoxy network crosslinked with reversible Diels-alder bonds, Polymer, Volume 259, 2022, 125334, ISSN 0032-3861, https://doi.org/10.1016/j.polymer.2022.125334es
dc.identifier.issn1873-2291
dc.identifier.urihttps://hdl.handle.net/10115/24473
dc.descriptionThe authors acknowledge the assistance of Gilberto Del Rosario from the Technological Center Support of University Rey Juan Carlos.es
dc.description.abstractThe development of epoxy resins through Diels-Alder crosslinking is challenging: the synthesis is complex, and the mechanical properties are hindered by the brittleness of these bonds. In this work, an epoxy/amine resin with different Diels-Alder crosslinking ratios is manufactured, achieving a simplified route that enhances both sustainability and industrial transferability. The curing temperatures are carefully studied, defining a two-step method (100 ◦C, 6 h + 60 ◦C, 12 h) that generates the thermo-reversible resins dispending the use of solvents or intermediate oligomers synthesis. Besides NMR, FTIR, and DSC characterization, the influence of Diels-Alder bonds on mechanical properties is analyzed. The addition of Diels-Alder crosslinking up to a 0.6 ratio of the stoichiometry provides an epoxy with an optimal compromise between recyclability and mechanical properties. Using this ratio, the effect of Diels-Alder crosslinking and disengagement is analyzed through DMTA and microhardness, demonstrating the network reversibility and the feasibility of this techniques to monitor its evolution.es
dc.language.isoenges
dc.publisherElsevieres
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectDiels-Alder resines
dc.subjectSelf-healing epoxyes
dc.subjectReprocessable thermosetses
dc.subjectRecyclable resines
dc.subjectThermo-reversible crosslinkinges
dc.titleThermally remendable, weldable, and recyclable epoxy network crosslinked with reversible Diels-alder bondses
dc.typeinfo:eu-repo/semantics/articlees
dc.identifier.doi10.1016/j.polymer.2022.125334es
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses


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