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

Autores
Marzocca, Angel José; Mansilla, Marcela Angela; Beccar Varela, María Pía; Mariani, María Cristina
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, mainlythe loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadienerubber (SBR) in the glass transition zone, where the SBR phase is in a glassystate and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K andstudied around the glass transition using a dynamic mechanical analyzer. The dependenceof 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 thedynamic properties. This was achieved by integrating the mechanical model proposedby Zener, which considers a single relaxation time related to temperature using both theArrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the datawas obtained using the Arrhenius relationship. The activation energy of the NR phaseincreases with the NR content in the blend, while in the SBR phase, it varies slightly. Thetrends obtained are related to curative migration from the SBR to the NR phase, increasingthe crosslink density at NR domain boundaries. These insights are valuable for optimizingthe performance of these elastomeric blends in practical applications.
Fil: Marzocca, Angel José. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos; Argentina
Fil: Mansilla, Marcela Angela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; Argentina
Fil: Beccar Varela, María Pía. University of Texas; Estados Unidos
Fil: Mariani, María Cristina. University of Texas; Estados Unidos
Materia
NATURAL RUBBER
STYRENE-BUTADIENE RUBBER
BLENDS
VULCANIZATION
DYNAMIC MECHANICAL PROPERTIES
GLASS TRANSITION REGION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/275688
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition ZoneMarzocca, Angel JoséMansilla, Marcela AngelaBeccar Varela, María PíaMariani, María CristinaNATURAL RUBBERSTYRENE-BUTADIENE RUBBERBLENDSVULCANIZATIONDYNAMIC MECHANICAL PROPERTIESGLASS TRANSITION REGIONhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The motivation of this research was to analyze the dynamic properties, mainlythe loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadienerubber (SBR) in the glass transition zone, where the SBR phase is in a glassystate and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K andstudied around the glass transition using a dynamic mechanical analyzer. The dependenceof 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 thedynamic properties. This was achieved by integrating the mechanical model proposedby Zener, which considers a single relaxation time related to temperature using both theArrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the datawas obtained using the Arrhenius relationship. The activation energy of the NR phaseincreases with the NR content in the blend, while in the SBR phase, it varies slightly. Thetrends obtained are related to curative migration from the SBR to the NR phase, increasingthe crosslink density at NR domain boundaries. These insights are valuable for optimizingthe performance of these elastomeric blends in practical applications.Fil: Marzocca, Angel José. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos; ArgentinaFil: Mansilla, Marcela Angela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; ArgentinaFil: Beccar Varela, María Pía. University of Texas; Estados UnidosFil: Mariani, María Cristina. University of Texas; Estados UnidosMDPI2025-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/275688Marzocca, Angel José; Mansilla, Marcela Angela; Beccar Varela, María Pía; Mariani, María Cristina; Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone; MDPI; Polymers; 17; 10; 5-2025; 1-162073-4360CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/17/10/1312info:eu-repo/semantics/altIdentifier/doi/10.3390/polym17101312info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-03T09:38:13Zoai:ri.conicet.gov.ar:11336/275688instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-03 09:38:14.074CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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, Angel José
NATURAL RUBBER
STYRENE-BUTADIENE RUBBER
BLENDS
VULCANIZATION
DYNAMIC MECHANICAL PROPERTIES
GLASS TRANSITION REGION
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, Angel José
Mansilla, Marcela Angela
Beccar Varela, María Pía
Mariani, María Cristina
author Marzocca, Angel José
author_facet Marzocca, Angel José
Mansilla, Marcela Angela
Beccar Varela, María Pía
Mariani, María Cristina
author_role author
author2 Mansilla, Marcela Angela
Beccar Varela, María Pía
Mariani, María Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv NATURAL RUBBER
STYRENE-BUTADIENE RUBBER
BLENDS
VULCANIZATION
DYNAMIC MECHANICAL PROPERTIES
GLASS TRANSITION REGION
topic NATURAL RUBBER
STYRENE-BUTADIENE RUBBER
BLENDS
VULCANIZATION
DYNAMIC MECHANICAL PROPERTIES
GLASS TRANSITION REGION
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The motivation of this research was to analyze the dynamic properties, mainlythe loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadienerubber (SBR) in the glass transition zone, where the SBR phase is in a glassystate and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K andstudied around the glass transition using a dynamic mechanical analyzer. The dependenceof 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 thedynamic properties. This was achieved by integrating the mechanical model proposedby Zener, which considers a single relaxation time related to temperature using both theArrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the datawas obtained using the Arrhenius relationship. The activation energy of the NR phaseincreases with the NR content in the blend, while in the SBR phase, it varies slightly. Thetrends obtained are related to curative migration from the SBR to the NR phase, increasingthe crosslink density at NR domain boundaries. These insights are valuable for optimizingthe performance of these elastomeric blends in practical applications.
Fil: Marzocca, Angel José. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Laboratorio de Polímeros y Materiales Compuestos; Argentina
Fil: Mansilla, Marcela Angela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Industrial; Argentina
Fil: Beccar Varela, María Pía. University of Texas; Estados Unidos
Fil: Mariani, María Cristina. University of Texas; Estados Unidos
description The motivation of this research was to analyze the dynamic properties, mainlythe loss modulus, of vulcanized immiscible blends of natural rubber (NR) and styrenebutadienerubber (SBR) in the glass transition zone, where the SBR phase is in a glassystate and the NR phase is in a rubbery state. The blends were cured at 433 and 443 K andstudied around the glass transition using a dynamic mechanical analyzer. The dependenceof 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 thedynamic properties. This was achieved by integrating the mechanical model proposedby Zener, which considers a single relaxation time related to temperature using both theArrhenius and Vogel–Fulcher–Tammann (VFT) relations. The best correlation with the datawas obtained using the Arrhenius relationship. The activation energy of the NR phaseincreases with the NR content in the blend, while in the SBR phase, it varies slightly. Thetrends obtained are related to curative migration from the SBR to the NR phase, increasingthe crosslink density at NR domain boundaries. These insights are valuable for optimizingthe performance of these elastomeric blends in practical applications.
publishDate 2025
dc.date.none.fl_str_mv 2025-05
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 http://hdl.handle.net/11336/275688
Marzocca, Angel José; Mansilla, Marcela Angela; Beccar Varela, María Pía; Mariani, María Cristina; Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone; MDPI; Polymers; 17; 10; 5-2025; 1-16
2073-4360
CONICET Digital
CONICET
url http://hdl.handle.net/11336/275688
identifier_str_mv Marzocca, Angel José; Mansilla, Marcela Angela; Beccar Varela, María Pía; Mariani, María Cristina; Understanding the Dynamic Loss Modulus of NR/SBR Blends in the Glassy–Rubbery Transition Zone; MDPI; Polymers; 17; 10; 5-2025; 1-16
2073-4360
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2073-4360/17/10/1312
info:eu-repo/semantics/altIdentifier/doi/10.3390/polym17101312
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1850505799143522304
score 13.275514

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