Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone

Autores
Marzocca, A. J.; Mansilla, M. A.; Beccar Varela, M. P.; Mariani, M. C.
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The motivation of this research was to analyze the dynamic properties, mainly the loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadiene rubber (SBR) in the glass transition zone, where the SBR phase is in a glassy state and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K and studied around the glass transition using a dynamic mechanical analyzer. The dependence of the loss modulus on temperature was described by considering the phase separation, and the frequency dependence was also included to provide a deeper insight into the dynamic properties. This was achieved by integrating the mechanical model proposed by Zener, which considers a single relaxation time related to temperature using both the Arrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the data was obtained using the Arrhenius relationship. The activation energy of the NR phase increases with the NR content in the blend, while in the SBR phase, it varies slightly. The trends obtained are related to curative migration from the SBR to the NR phase, increasing the crosslink density at NR domain boundaries. These insights are valuable for optimizing the performance of these elastomeric blends in practical applications.
Fil: Marzocca, A. J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos (UBA-Exactas); Argentina
Fil: Mansilla, M. A. Instituto Nacional de Tecnología Industrial. Gerencia Operativa de Desarrollo Tecnológico e Innovación. Subgerencia Operativa de Áreas de Conocimiento. Dirección Técnica de Materiales Avanzados (INTI-GODTeI-SOAC); Argentina
Fil: Beccar Varela, M. P. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados Unidos
Fil: Mariani, M. C. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados Unidos
Fuente
Polymers 2025, 17(10), 1312
Materia
Caucho
Vulcanización
Industria del caucho
Caucho natural
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/4.0/
Repositorio
Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)
Institución
Instituto Nacional de Tecnología Industrial
OAI Identificador
nuevadc:2025MansillaM_pdf
Acceder
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network_acronym_str RIINTI
repository_id_str
network_name_str Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)
spelling Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition ZoneMarzocca, A. J.Mansilla, M. A.Beccar Varela, M. P.Mariani, M. C.CauchoVulcanizaciónIndustria del cauchoCaucho naturalThe motivation of this research was to analyze the dynamic properties, mainly the loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadiene rubber (SBR) in the glass transition zone, where the SBR phase is in a glassy state and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K and studied around the glass transition using a dynamic mechanical analyzer. The dependence of the loss modulus on temperature was described by considering the phase separation, and the frequency dependence was also included to provide a deeper insight into the dynamic properties. This was achieved by integrating the mechanical model proposed by Zener, which considers a single relaxation time related to temperature using both the Arrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the data was obtained using the Arrhenius relationship. The activation energy of the NR phase increases with the NR content in the blend, while in the SBR phase, it varies slightly. The trends obtained are related to curative migration from the SBR to the NR phase, increasing the crosslink density at NR domain boundaries. These insights are valuable for optimizing the performance of these elastomeric blends in practical applications.Fil: Marzocca, A. J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos (UBA-Exactas); ArgentinaFil: Mansilla, M. A. Instituto Nacional de Tecnología Industrial. Gerencia Operativa de Desarrollo Tecnológico e Innovación. Subgerencia Operativa de Áreas de Conocimiento. Dirección Técnica de Materiales Avanzados (INTI-GODTeI-SOAC); ArgentinaFil: Beccar Varela, M. P. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados UnidosFil: Mariani, M. C. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados UnidosMDPI2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2025MansillaM.pdfhttps://app.inti.gob.ar/greenstone3/sites/localsite/collect/nuevadc/index/assoc/2025Mans/illaM_pd.dir/doc.pdfPolymers 2025, 17(10), 1312reponame:Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)instname:Instituto Nacional de Tecnología Industrialenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/openAccess2025-09-04T11:42:57Znuevadc:2025MansillaM_pdfinstacron:INTIInstitucionalhttps://app.inti.gob.ar/greenstone3/biblioOrganismo científico-tecnológicohttps://argentina.gob.ar/intihttps://app.inti.gob.ar/greenstone3/oaiserver?verb=Identifypfalcato@inti.gob.arArgentinaopendoar:2025-09-04 11:42:58.451Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI) - Instituto Nacional de Tecnología Industrialfalse
dc.title.none.fl_str_mv Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
title Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
spellingShingle Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
Marzocca, A. J.
Caucho
Vulcanización
Industria del caucho
Caucho natural
title_short Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
title_full Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
title_fullStr Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
title_full_unstemmed Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
title_sort Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone
dc.creator.none.fl_str_mv Marzocca, A. J.
Mansilla, M. A.
Beccar Varela, M. P.
Mariani, M. C.
author Marzocca, A. J.
author_facet Marzocca, A. J.
Mansilla, M. A.
Beccar Varela, M. P.
Mariani, M. C.
author_role author
author2 Mansilla, M. A.
Beccar Varela, M. P.
Mariani, M. C.
author2_role author
author
author
dc.subject.none.fl_str_mv Caucho
Vulcanización
Industria del caucho
Caucho natural
topic Caucho
Vulcanización
Industria del caucho
Caucho natural
dc.description.none.fl_txt_mv The motivation of this research was to analyze the dynamic properties, mainly the loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadiene rubber (SBR) in the glass transition zone, where the SBR phase is in a glassy state and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K and studied around the glass transition using a dynamic mechanical analyzer. The dependence of the loss modulus on temperature was described by considering the phase separation, and the frequency dependence was also included to provide a deeper insight into the dynamic properties. This was achieved by integrating the mechanical model proposed by Zener, which considers a single relaxation time related to temperature using both the Arrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the data was obtained using the Arrhenius relationship. The activation energy of the NR phase increases with the NR content in the blend, while in the SBR phase, it varies slightly. The trends obtained are related to curative migration from the SBR to the NR phase, increasing the crosslink density at NR domain boundaries. These insights are valuable for optimizing the performance of these elastomeric blends in practical applications.
Fil: Marzocca, A. J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos (UBA-Exactas); Argentina
Fil: Mansilla, M. A. Instituto Nacional de Tecnología Industrial. Gerencia Operativa de Desarrollo Tecnológico e Innovación. Subgerencia Operativa de Áreas de Conocimiento. Dirección Técnica de Materiales Avanzados (INTI-GODTeI-SOAC); Argentina
Fil: Beccar Varela, M. P. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados Unidos
Fil: Mariani, M. C. University of Texas at El Paso. Department of Mathematical Sciences (UTEP); Estados Unidos
description The motivation of this research was to analyze the dynamic properties, mainly the loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadiene rubber (SBR) in the glass transition zone, where the SBR phase is in a glassy state and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K and studied around the glass transition using a dynamic mechanical analyzer. The dependence of the loss modulus on temperature was described by considering the phase separation, and the frequency dependence was also included to provide a deeper insight into the dynamic properties. This was achieved by integrating the mechanical model proposed by Zener, which considers a single relaxation time related to temperature using both the Arrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the data was obtained using the Arrhenius relationship. The activation energy of the NR phase increases with the NR content in the blend, while in the SBR phase, it varies slightly. The trends obtained are related to curative migration from the SBR to the NR phase, increasing the crosslink density at NR domain boundaries. These insights are valuable for optimizing the performance of these elastomeric blends in practical applications.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 2025MansillaM.pdf
https://app.inti.gob.ar/greenstone3/sites/localsite/collect/nuevadc/index/assoc/2025Mans/illaM_pd.dir/doc.pdf
identifier_str_mv 2025MansillaM.pdf
url https://app.inti.gob.ar/greenstone3/sites/localsite/collect/nuevadc/index/assoc/2025Mans/illaM_pd.dir/doc.pdf
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/4.0/
openAccess
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0/
openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Polymers 2025, 17(10), 1312
reponame:Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)
instname:Instituto Nacional de Tecnología Industrial
reponame_str Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)
collection Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI)
instname_str Instituto Nacional de Tecnología Industrial
repository.name.fl_str_mv Repositorio Institucional del Instituto Nacional de Tecnología Industrial (INTI) - Instituto Nacional de Tecnología Industrial
repository.mail.fl_str_mv pfalcato@inti.gob.ar
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score 12.623145

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