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Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-­‐Alder moieties

dc.contributor.authorAizpurua Lariz, June
dc.contributor.authorMartín Alberdi, María Dolores
dc.contributor.authorFernández San Martín, Mercedes
dc.contributor.authorGonzález Vives, Alba
dc.contributor.authorIrusta Maritxalar, María Lourdes
dc.date.accessioned2024-02-08T11:17:26Z
dc.date.available2024-02-08T11:17:26Z
dc.date.issued2020-02-01
dc.identifier.citationProgress in organic coatings 139 : (2020) // Article ID 105460es_ES
dc.identifier.issn0300-9440
dc.identifier.urihttp://hdl.handle.net/10810/65515
dc.description.abstractThe aim of the present work is to increase the sustainability of UV curable waterborne polyurethane dispersions using the Diels-Alder chemistry. In this way, the obtaining of crosslinked polyurethane coatings presenting healing and recycling properties is proposed. Thus, waterborne polyurethanes were obtained by the acetone process replacing the chain extender by a diol containing the Diels Alder adduct and using acrylic chain ends that allowed the UV cross-linking. Photo-DSC results showed that the Diels Alder adduct did not prevent the UV cross-linking of the coating. In addition, FTIR, DSC and rheological experiments confirmed the occurrence of the DA and retro DA reaction (at 60 °C and 120 °C respectively) in the cross-linked polymer. Thanks to this reaction, the materials obtained by this methodology could be healed and reprocessed when increasing the temperature as shown by the maintenance of the mechanical properties and carbon dioxide permeability after repairing. These results can be of great interest towards the development of more sustainable waterborne polyurethane coatingses_ES
dc.description.sponsorshipUniversity of the Basque Country UPV/EHU (UFI 11/56) and the Basque Government (IT1313-­‐19) and the Diputación Foral de Gipuzkoa (0198/2018)es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subjectwaterborne polyurethaneses_ES
dc.subjectUV crosslinking
dc.subjectDiels Alder chemistry
dc.subjecthealing
dc.subjectrecycling
dc.titleRecyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-­‐Alder moietieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0300944019310136
dc.identifier.doi10.1016/j.porgcoat.2019.105460
dc.departamentoesPolímeros y Materiales Avanzados: Física, Química y Tecnologíaes_ES
dc.departamentoeuPolimero eta Material Aurreratuak: Fisika, Kimika eta Teknologiaes_ES
dc.identifier.eissn1873-331X


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© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Except where otherwise noted, this item's license is described as © 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/