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dc.contributor.authorVallejos Calzada, Saúl 
dc.contributor.authorTrigo López, Miriam 
dc.contributor.authorSardon, Haritz
dc.contributor.authorGonzález Martín, José Manuel 
dc.contributor.authorGonzález Moreno, Sara 
dc.contributor.authorGarcía Pérez, José Miguel 
dc.date.accessioned2023-10-10T11:42:06Z
dc.date.available2023-10-10T11:42:06Z
dc.date.issued2023-10
dc.identifier.issn0950-0618
dc.identifier.urihttp://hdl.handle.net/10259/7857
dc.description.abstractWe focused on developing polyurethane (PU) adhesives with superior ambient thermal and hydrolytic stability, a crucial factor for industrial productivity. Our approach involved creating PU prepolymers that can withstand varying temperatures in ambient conditions. These prepolymers consist of conventional isocyanate-terminated polyurethane and metal-free acid:base organic catalysts, with the stability of the adhesive relying on the organocatalyst employed. We tested a series of 11 latent organocatalysts derived from the reaction between 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and various acids. Among these, the catalyst based on 1-naphthoic acid exhibited exceptional stability, lasting at least 3 h at 60 ◦C and an average relative humidity of 65% under vigorous stirring. We assessed this stability using a fan-based stirrer and analyzed the curing conditions kinetically through DSC. Furthermore, our adhesive formulation is environmentally friendly as it is free of metals, specifically tin (typically present in catalysts such as dibutyltin dilaurate). This quality enhances its sustainability. To validate the practical applicability of the adhesives, we conducted tests using decorative facade models composed of siliciclastic sandstone extracted from a quarry in Vilviestre del Pinar (Burgos, Spain. Latitude: 41.951024◦N, longitude: 3.078283◦W) and extruded polystyrene (XPS). The results demonstrated the excellent hydrolytic and thermal stability of the adhesives, highlighting their significant potential for panel manufacturing in this context.en
dc.description.sponsorshipThis work was supported by the Regional Government of Castilla y León (Junta de Castilla y León) and by the Ministry of Science and Innovation MICIN and the European Union NextGeneration EU PRTR. Author José Miguel García received grant PID2020-113264RB-I00 funded by MCIN/AEI/ 10.13039/501100011033 and by “ERDF A way of making Europe”. Author Miriam Trigo-López received grant PID2019-108583RJ-I00 funded by MCIN/AEI/10.13039/501100011033. Author Saul Vallejos received grant BG22/00086 funded by Spanish Ministerio de Universidades.en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofConstruction and Building Materials. 2023, V. 400, 132643en
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectSiliciclastic sandstoneen
dc.subjectSingle-component polyurethane adhesiveen
dc.subjectMetal-free catalysten
dc.subjectColorimetryen
dc.subjectRGB parametersen
dc.subjectHomemade stability measurement systemen
dc.subjectDBUen
dc.subjectNaphthoic aciden
dc.subjectFanen
dc.subjectFacadesen
dc.subject.otherMateriales de construcciónes
dc.subject.otherBuilding materialsen
dc.titleMetal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturingen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.conbuildmat.2023.132643es
dc.identifier.doi10.1016/j.conbuildmat.2023.132643
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113264RB-I00/ES/DISEÑO, SINTESIS Y CARACTERIZACION DE POLIMEROS INTELIGENTES. APLICACION DE SENSORES QUIMICOS POLIMERICOS EN CONTROL Y SEGURIDAD ALIMENTARIA Y EN EL AMBITO SANITARIO/es
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108583RJ-I00/ES/POLIAMIDAS AROMATICAS MICRO Y NANOCELULARES REFORZADAS COMO MATERIALES DE ALTAS PRESTACIONES EN APLICACIONES DE SEGURIDAD, PROTECCION Y TRANSPORTE/es
dc.relation.projectIDinfo:eu-repo/grantAgreement/MIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/BG22%2F00086/ES/es
dc.journal.titleConstruction and Building Materialses
dc.volume.number400es
dc.page.initial132643es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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