Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship

Producción Científica

Detalles Bibliográficos
Autores: García González, Carlos A., Rodríguez Pérez, Miguel Ángel, Merillas Valero, Beatriz, Gómez Álvarez-Arenas, Tomás Enrique
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Universidad de Valladolid
Repositorio:UVaDOC. Repositorio Documental de la Universidad de Valladolid
OAI Identifier:oai:uvadoc.uva.es:10324/76056
Acceso en línea:https://doi.org/10.1002/sstr.202400120
https://uvadoc.uva.es/handle/10324/76056
Access Level:acceso abierto
Palabra clave:Polyurethane Aerogel
Densification
Ciencia de los materiales
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spelling Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationshipGarcía González, Carlos A.Rodríguez Pérez, Miguel ÁngelMerillas Valero, BeatrizGómez Álvarez-Arenas, Tomás EnriquePolyurethane AerogelDensificationCiencia de los materialesProducción CientíficaThe aerogel performance for industrial uses can be tailored using several chemical and physical strategies. The effects of a controlled densification on polyurethane aerogels are herein studied by analyzing their textural, mechanical, sound, optical, and thermal insulating properties. The produced aerogels are uniaxially compressed to different strains (30%–80%) analyzing the consequent changes in the structures and, therefore, final properties. As expected, their mechanical stiffness can be significantly increased by compression (until 55-fold higher elastic modulus for 80%-strain), while the light transmittance does not noticeably worsen until it is compressed more than 60%. Additionally, the modifications produced in the heat transfer contributions are analyzed, obtaining the optimum balance between density increase and pore size reduction. The minimum thermal conductivity (14.5%-reduction) is obtained by compressing the aerogel to 50%-strain, where the increment in the solid conduction is surpassed by the reduction of the radiative and gas contributions. This strategy avoids tedious chemical modifications in the synthesis procedure to control the final structure of the aerogels, leading to the possibility of carefully adapting their structure and properties through a simple method such as densification. Thus, it allows to obtain aerogels for current and on-demand applications, which is one of the main challenges in the field.Este trabajo forma parte del proyecto de investigación: ECO-AERoGELS COST Innovation Grant supported by the European Commission; Ministerio de Ciencia, Innovación y Universidades (MCIU) ; Ministry of Science and Innovation MICIN and the European Union NextGenerationEU / PRTR. (C17. I1); Regional Government of Castilla y León and the EU-FEDER programWiley2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://doi.org/10.1002/sstr.202400120https://uvadoc.uva.es/handle/10324/76056reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolidinstname:Universidad de ValladolidIngléshttps://onlinelibrary.wiley.com/doi/10.1002/sstr.202400120info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:uvadoc.uva.es:10324/760562026-06-13T12:44:47Z
dc.title.none.fl_str_mv Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
title Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
spellingShingle Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
García González, Carlos A.
Polyurethane Aerogel
Densification
Ciencia de los materiales
title_short Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
title_full Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
title_fullStr Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
title_full_unstemmed Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
title_sort Towards the optimization of polyurethane aerogel properties by densification: exploring the structure–properties relationship
dc.creator.none.fl_str_mv García González, Carlos A.
Rodríguez Pérez, Miguel Ángel
Merillas Valero, Beatriz
Gómez Álvarez-Arenas, Tomás Enrique
author García González, Carlos A.
author_facet García González, Carlos A.
Rodríguez Pérez, Miguel Ángel
Merillas Valero, Beatriz
Gómez Álvarez-Arenas, Tomás Enrique
author_role author
author2 Rodríguez Pérez, Miguel Ángel
Merillas Valero, Beatriz
Gómez Álvarez-Arenas, Tomás Enrique
author2_role author
author
author
dc.subject.none.fl_str_mv Polyurethane Aerogel
Densification
Ciencia de los materiales
topic Polyurethane Aerogel
Densification
Ciencia de los materiales
description Producción Científica
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1002/sstr.202400120
https://uvadoc.uva.es/handle/10324/76056
url https://doi.org/10.1002/sstr.202400120
https://uvadoc.uva.es/handle/10324/76056
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://onlinelibrary.wiley.com/doi/10.1002/sstr.202400120
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname:Universidad de Valladolid
instname_str Universidad de Valladolid
reponame_str UVaDOC. Repositorio Documental de la Universidad de Valladolid
collection UVaDOC. Repositorio Documental de la Universidad de Valladolid
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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