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dc.contributor.author
Mansilla, Marcela Angela
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dc.contributor.author
Valentín, J. L.
dc.contributor.author
López Manchado, M. A.
dc.contributor.author
González Jiménez, A.
dc.contributor.author
Marzocca, Angel José
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dc.date.available
2017-06-15T21:47:36Z
dc.date.issued
2016-08
dc.identifier.citation
Mansilla, Marcela Angela; Valentín, J. L.; López Manchado, M. A.; González Jiménez, A.; Marzocca, Angel José; Effect of entanglements in the microstructure of cured NR/SBR blends prepared by solution and mixing in a two-roll mill; Elsevier; European Polymer Journal; 81; 8-2016; 365-375
dc.identifier.issn
0014-3057
dc.identifier.uri
http://hdl.handle.net/11336/18294
dc.description.abstract
The influence of preparation methodology of vulcanized elastomeric blends of natural rubber (NR) and styrene butadiene rubber (SBR) on the phase morphology and network structure has been studied. Two different compounding methodologies have been applied: (i) mechanical mixing in a two-roll mill and (ii) blending in solution, by dissolving the elastomers in an appropriated solvent. Samples with different NR/SBR ratios were vulcanized by using a conventional cure system based on sulfur and TBBS (n-t-butyl-2-benzothiazole sulfenamide) as accelerator. The phase distribution of rubber matrices in the blends was investigated by transmission electron microscopy (TEM), identifying differences in the compounds according to the preparation method. Weak residual dipolar couplings caused by the existence of cross-links and topological constraints in vulcanized samples were characterized by using proton multiple-quantum (MQ) NMR spectroscopy. The structural results obtained by NMR and equilibrium swelling experiments were compared and complemented with viscosity measurements. It was found that the preparation method has a strong influence on the phase morphology of blends and the molecular network structure of each rubber phase, with an important variation in the entanglements contribution, which is more pronounced when the prepared blends are richer in NR.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Rubber Blend
dc.subject
Entanglement
dc.subject
Nuclear Magnetic Resonance Spectroscopy
dc.subject
Swelling
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Effect of entanglements in the microstructure of cured NR/SBR blends prepared by solution and mixing in a two-roll mill
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-15T19:46:37Z
dc.journal.volume
81
dc.journal.pagination
365-375
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Mansilla, Marcela Angela. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física de Materiales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Valentín, J. L.. Consejo Superior de Investigaciones Cientificas; España
dc.description.fil
Fil: López Manchado, M. A.. Consejo Superior de Investigaciones Cientificas; España
dc.description.fil
Fil: González Jiménez, A.. Consejo Superior de Investigaciones Cientificas; España
dc.description.fil
Fil: Marzocca, Angel José. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
dc.journal.title
European Polymer Journal
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.eurpolymj.2016.06.023
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0014305716301574?via%3Dihub
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