Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties
The 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 wer...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/65515 |
| Acceso en línea: | http://hdl.handle.net/10810/65515 |
| Access Level: | acceso abierto |
| Palabra clave: | waterborne polyurethanes UV crosslinking Diels Alder chemistry healing recycling |
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Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moietiesAizpurua Lariz, JuneMartín Alberdi, María DoloresFernández San Martín, MercedesGonzález Vives, AlbaIrusta Maritxalar, María Lourdeswaterborne polyurethanesUV crosslinkingDiels Alder chemistryhealingrecyclingThe 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 coatingsUniversity of the Basque Country UPV/EHU (UFI 11/56) and the Basque Government (IT1313-‐19) and the Diputación Foral de Gipuzkoa (0198/2018)Elsevier202420242020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/65515reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://www.sciencedirect.com/science/article/pii/S0300944019310136info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 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/oai:addi.ehu.eus:10810/655152026-06-18T09:23:17Z |
| dc.title.none.fl_str_mv |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| title |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| spellingShingle |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties Aizpurua Lariz, June waterborne polyurethanes UV crosslinking Diels Alder chemistry healing recycling |
| title_short |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| title_full |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| title_fullStr |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| title_full_unstemmed |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| title_sort |
Recyclable, remendable and healing polyurethane/acrylic coatings from UV curable waterborne dispersions containing Diels-‐Alder moieties |
| dc.creator.none.fl_str_mv |
Aizpurua Lariz, June Martín Alberdi, María Dolores Fernández San Martín, Mercedes González Vives, Alba Irusta Maritxalar, María Lourdes |
| author |
Aizpurua Lariz, June |
| author_facet |
Aizpurua Lariz, June Martín Alberdi, María Dolores Fernández San Martín, Mercedes González Vives, Alba Irusta Maritxalar, María Lourdes |
| author_role |
author |
| author2 |
Martín Alberdi, María Dolores Fernández San Martín, Mercedes González Vives, Alba Irusta Maritxalar, María Lourdes |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
waterborne polyurethanes UV crosslinking Diels Alder chemistry healing recycling |
| topic |
waterborne polyurethanes UV crosslinking Diels Alder chemistry healing recycling |
| description |
The 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 coatings |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020 2024 2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10810/65515 |
| url |
http://hdl.handle.net/10810/65515 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://www.sciencedirect.com/science/article/pii/S0300944019310136 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| dc.source.none.fl_str_mv |
reponame:Addi. Archivo Digital para la Docencia y la Investigación instname:Universidad del País Vasco |
| instname_str |
Universidad del País Vasco |
| reponame_str |
Addi. Archivo Digital para la Docencia y la Investigación |
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Addi. Archivo Digital para la Docencia y la Investigación |
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1869410693843779584 |
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15,300724 |