Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing

We 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 convent...

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Detalhes bibliográficos
Autores: Vallejos, Saúl, Trigo López, Miriam, Sardon, Haritz, González Martín, José Manuel, González Moreno, Sara, García, José María
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Consejo General de la Arquitectura Técnica de España (CGATE)
Repositorio:RIARTE
OAI Identifier:oai:www.riarte.es:20.500.12251/3373
Acesso em linha:http://hdl.handle.net/20.500.12251/3373
https://doi.org/10.1016/j.conbuildmat.2023.132643
Access Level:acceso abierto
Palavra-chave:Adhesivos
Colorimetría
Fachadas
Poliuretano
Areniscas siliciclásticas
Aislamiento térmico
Estabilidad térmica
Ensayos (propiedades o materiales)
Material de construcción
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3313.04 Material de Construcción
2211.02 Materiales Compuestos
2304.21 Poliuretanos
2211.29 Propiedades Térmicas de Los Sólidos
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spelling Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturingVallejos, SaúlTrigo López, MiriamSardon, HaritzGonzález Martín, José ManuelGonzález Moreno, SaraGarcía, José MaríaAdhesivosColorimetríaFachadasPoliuretanoAreniscas siliciclásticasAislamiento térmicoEstabilidad térmicaEnsayos (propiedades o materiales)Material de construcción3312.08 Propiedades de Los Materiales3312.12 Ensayo de Materiales3313.04 Material de Construcción2211.02 Materiales Compuestos2304.21 Poliuretanos2211.29 Propiedades Térmicas de Los SólidosWe 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. © 2023 The Author(s)Elsevier Ltd2023info:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12251/3373https://doi.org/10.1016/j.conbuildmat.2023.132643reponame:RIARTEinstname:Consejo General de la Arquitectura Técnica de España (CGATE)Ingléshttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:www.riarte.es:20.500.12251/33732026-06-02T12:44:41Z
dc.title.none.fl_str_mv Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
title Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
spellingShingle Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
Vallejos, Saúl
Adhesivos
Colorimetría
Fachadas
Poliuretano
Areniscas siliciclásticas
Aislamiento térmico
Estabilidad térmica
Ensayos (propiedades o materiales)
Material de construcción
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3313.04 Material de Construcción
2211.02 Materiales Compuestos
2304.21 Poliuretanos
2211.29 Propiedades Térmicas de Los Sólidos
title_short Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
title_full Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
title_fullStr Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
title_full_unstemmed Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
title_sort Metal-free organocatalysts for high hydrolytic stability single component polyurethane adhesives and their application in decorative insulation facades manufacturing
dc.creator.none.fl_str_mv Vallejos, Saúl
Trigo López, Miriam
Sardon, Haritz
González Martín, José Manuel
González Moreno, Sara
García, José María
author Vallejos, Saúl
author_facet Vallejos, Saúl
Trigo López, Miriam
Sardon, Haritz
González Martín, José Manuel
González Moreno, Sara
García, José María
author_role author
author2 Trigo López, Miriam
Sardon, Haritz
González Martín, José Manuel
González Moreno, Sara
García, José María
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Adhesivos
Colorimetría
Fachadas
Poliuretano
Areniscas siliciclásticas
Aislamiento térmico
Estabilidad térmica
Ensayos (propiedades o materiales)
Material de construcción
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3313.04 Material de Construcción
2211.02 Materiales Compuestos
2304.21 Poliuretanos
2211.29 Propiedades Térmicas de Los Sólidos
topic Adhesivos
Colorimetría
Fachadas
Poliuretano
Areniscas siliciclásticas
Aislamiento térmico
Estabilidad térmica
Ensayos (propiedades o materiales)
Material de construcción
3312.08 Propiedades de Los Materiales
3312.12 Ensayo de Materiales
3313.04 Material de Construcción
2211.02 Materiales Compuestos
2304.21 Poliuretanos
2211.29 Propiedades Térmicas de Los Sólidos
description We 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. © 2023 The Author(s)
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12251/3373
https://doi.org/10.1016/j.conbuildmat.2023.132643
url http://hdl.handle.net/20.500.12251/3373
https://doi.org/10.1016/j.conbuildmat.2023.132643
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Ltd
publisher.none.fl_str_mv Elsevier Ltd
dc.source.none.fl_str_mv reponame:RIARTE
instname:Consejo General de la Arquitectura Técnica de España (CGATE)
instname_str Consejo General de la Arquitectura Técnica de España (CGATE)
reponame_str RIARTE
collection RIARTE
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408208157671424
score 15,812429

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