Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites

[EN] Finding eco-friendly alternatives to the synthetic materials used for acoustic application in building industry is necessary to address environmental sustainability. Biocomposites of natural fibers combined with a biopolymer matrix emerge as a promising approach. In this study, soy protein bioc...

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Autores: Alba, Jesus|||0000-0002-4188-854X, del Rey, Romina|||0000-0001-5907-0677, Urdanpilleta, Marta, Leceta, Itsaso, Guerrero, Pedro, de la Caba, Koro
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/230152
Acceso en línea:https://riunet.upv.es/handle/10251/230152
Access Level:acceso abierto
Palabra clave:Biocomposites
Sheep wool
Sound insulation
Airflow resistivity
Sound absorption
12.- Garantizar las pautas de consumo y de producción sostenibles
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spelling Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein BiocompositesAlba, Jesus|||0000-0002-4188-854Xdel Rey, Romina|||0000-0001-5907-0677Urdanpilleta, MartaLeceta, ItsasoGuerrero, Pedrode la Caba, KoroBiocompositesSheep woolSound insulationAirflow resistivitySound absorption12.- Garantizar las pautas de consumo y de producción sostenibles[EN] Finding eco-friendly alternatives to the synthetic materials used for acoustic application in building industry is necessary to address environmental sustainability. Biocomposites of natural fibers combined with a biopolymer matrix emerge as a promising approach. In this study, soy protein biocomposites were prepared with 10, 15, and 20 wt% sheep wool and were added spent coffee grounds by freeze-drying to create fibro-porous biocomposites for acoustic applications. Transmission loss (TL) measurements underlined good behavior as sound insulators, with maximum values around 22 dB at 2500 Hz and even better performance than those of commercial synthetic solutions. The obtained sound absorption coefficients were competitive, as they almost reached unity at medium and high frequencies. Airflow resistivity was determined, and values were higher for the biocomposites with coffee grounds, specifically 14-18 kPa<middle dot>s<middle dot>m-2 vs. 5.62-11.6 kPa<middle dot>s<middle dot>m-2. Using the input of the measured airflow resistivity, an empirical model using a genetic algorithm was developed as a prediction tool for the sound absorption performance of the samples. All in all, results showcase the feasibility of employing the studied biocomposites as competitive sound insulators and absorbers in building construction industry.This work was supported by the Basque Government (IT1658-22), the Conselleria de Innovacion, Universidades, Ciencia y Sociedad-Generalitat Valenciana, through the ACIF-2020 program [Grant No. ACIF/2020/401], and the European Social Fund.MDPI AGDepartamento de Física AplicadaEscuela Politécnica Superior de AlcoyEscuela Politécnica Superior de GandiaCentro de Tecnologías Físicas: Acústica, Materiales y AstrofísicaEusko JaurlaritzaEuropean Social FundGeneralitat ValencianaRepositorio Institucional de la Universitat Politècnica de València Riunet20252025-10-02journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/230152reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengGeneralitat Valenciana https://doi.org/10.13039/501100003359 ACIF%2F2020%2F401 DISEÑO DE NUEVAS TECNICAS ELECTROACUSTICAS PARA LA CARACTERIZACION DE MATERIALESEusko Jaurlaritza Eusko Jaurlaritza IT1658-22open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2301522026-06-13T07:49:27Z
dc.title.none.fl_str_mv Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
title Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
spellingShingle Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
Alba, Jesus|||0000-0002-4188-854X
Biocomposites
Sheep wool
Sound insulation
Airflow resistivity
Sound absorption
12.- Garantizar las pautas de consumo y de producción sostenibles
title_short Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
title_full Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
title_fullStr Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
title_full_unstemmed Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
title_sort Development of an Empirical Model as a Prediction Tool for the Sound Absorption Performance of Wool/Soy Protein Biocomposites
dc.creator.none.fl_str_mv Alba, Jesus|||0000-0002-4188-854X
del Rey, Romina|||0000-0001-5907-0677
Urdanpilleta, Marta
Leceta, Itsaso
Guerrero, Pedro
de la Caba, Koro
author Alba, Jesus|||0000-0002-4188-854X
author_facet Alba, Jesus|||0000-0002-4188-854X
del Rey, Romina|||0000-0001-5907-0677
Urdanpilleta, Marta
Leceta, Itsaso
Guerrero, Pedro
de la Caba, Koro
author_role author
author2 del Rey, Romina|||0000-0001-5907-0677
Urdanpilleta, Marta
Leceta, Itsaso
Guerrero, Pedro
de la Caba, Koro
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Aplicada
Escuela Politécnica Superior de Alcoy
Escuela Politécnica Superior de Gandia
Centro de Tecnologías Físicas: Acústica, Materiales y Astrofísica
Eusko Jaurlaritza
European Social Fund
Generalitat Valenciana
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Biocomposites
Sheep wool
Sound insulation
Airflow resistivity
Sound absorption
12.- Garantizar las pautas de consumo y de producción sostenibles
topic Biocomposites
Sheep wool
Sound insulation
Airflow resistivity
Sound absorption
12.- Garantizar las pautas de consumo y de producción sostenibles
description [EN] Finding eco-friendly alternatives to the synthetic materials used for acoustic application in building industry is necessary to address environmental sustainability. Biocomposites of natural fibers combined with a biopolymer matrix emerge as a promising approach. In this study, soy protein biocomposites were prepared with 10, 15, and 20 wt% sheep wool and were added spent coffee grounds by freeze-drying to create fibro-porous biocomposites for acoustic applications. Transmission loss (TL) measurements underlined good behavior as sound insulators, with maximum values around 22 dB at 2500 Hz and even better performance than those of commercial synthetic solutions. The obtained sound absorption coefficients were competitive, as they almost reached unity at medium and high frequencies. Airflow resistivity was determined, and values were higher for the biocomposites with coffee grounds, specifically 14-18 kPa<middle dot>s<middle dot>m-2 vs. 5.62-11.6 kPa<middle dot>s<middle dot>m-2. Using the input of the measured airflow resistivity, an empirical model using a genetic algorithm was developed as a prediction tool for the sound absorption performance of the samples. All in all, results showcase the feasibility of employing the studied biocomposites as competitive sound insulators and absorbers in building construction industry.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-10-02
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/230152
url https://riunet.upv.es/handle/10251/230152
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Generalitat Valenciana https://doi.org/10.13039/501100003359 ACIF%2F2020%2F401 DISEÑO DE NUEVAS TECNICAS ELECTROACUSTICAS PARA LA CARACTERIZACION DE MATERIALES
Eusko Jaurlaritza Eusko Jaurlaritza IT1658-22
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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