Ionic Liquid-Cured Epoxy/PCL Blends with Improved Toughness and Adhesive Properties
dc.contributor.author | Orduña Velasco, Lidia | |
dc.contributor.author | Razquin Martín, Iker | |
dc.contributor.author | Otaegi Tena, Itziar | |
dc.contributor.author | Aramburu Ocáriz, Nora | |
dc.contributor.author | Guerrica Echevarría Estanga, Gonzalo María | |
dc.date.accessioned | 2022-08-08T08:56:24Z | |
dc.date.available | 2022-08-08T08:56:24Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Polymers 14(13) : (2022) // Article ID 2679 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/57245 | |
dc.description.abstract | In this work, ionic liquid (IL)-cured epoxy resins were modified by adding poly(ε-caprolactone) (PCL). Three different ILs were used in order to study how (a) the chemical structure of the ILs and (b) the PCL content affect the phase behaviour, microstructure, mechanical and adhesive properties. Regardless of the IL used or the PCL content, the obtained materials showed a single phase. The addition of PCL to the epoxy resin resulted in plasticizing of the network blends, lower glass transition temperatures (Tg), and crosslinking densities (νe). Low PCL contents did not have a significant impact on the mechanical properties. However, the adhesive properties improved significantly at low PCL contents. Higher PCL contents led to a significant increase in toughness, especially in the case of the imidazolium-based IL. The balance achieved between the mechanical and adhesive properties of these IL-cured epoxy/PCL blends constitutes an important step towards sustainability. This is because a biodegradable polymer (PCL) was used to substitute part of the epoxy resin, and the ILs—which are non-volatile and cure effectively at much lower contents—were used instead of conventional curing agents. Given the wide use of this kind of materials in the adhesive industry, the practical significance of these results must be emphasised. | es_ES |
dc.description.sponsorship | This research was funded by Ministerio de Economía y Competitividad (MINECO, Spain) (MAT2017-84116-R), Eusko Jaurlaritza Project (IT1309-19) and the University of the Basque Country (pre-doctoral grant awarded to L.O.). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2017-84116-R | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | epoxy | es_ES |
dc.subject | ionic liquids | es_ES |
dc.subject | poly(ε-caprolactone) | es_ES |
dc.subject | blends | es_ES |
dc.subject | adhesives | es_ES |
dc.subject | lap-shear | es_ES |
dc.subject | mechanical properties | es_ES |
dc.subject | toughness | es_ES |
dc.title | Ionic Liquid-Cured Epoxy/PCL Blends with Improved Toughness and Adhesive Properties | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2022-07-08T11:55:57Z | |
dc.rights.holder | © 2022 by the authors.Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/14/13/2679 | es_ES |
dc.identifier.doi | 10.3390/polym14132679 | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia |
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Except where otherwise noted, this item's license is described as © 2022 by the authors.Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).