Thermal properties in cured natural rubber/styrene butadiene rubber blends

Blends of natural rubber (NR) and styrene butadiene rubber (SBR) were prepared with sulfur and n-t-butyl-2-benzothiazole sulfonamide (TBBS) as accelerator, varying the amount of each polymer in the blend. Samples were analysed by rheometer curing at 433 K until their maximum torque was reached. The...

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Detalles Bibliográficos
Autores principales: Goyanes, S., Lopez, C.C., Rubiolo, G.H., Quasso, F., Marzocca, A.J.
Formato: JOUR
Materias:
Glass transition temperature
NR/SBR blends
Specific heat
Thermal diffusivity
Vulcanization
Aromatic polymers
Crosslinking
Differential scanning calorimetry
Glass transition
Rheology
Solubility
N-t-butyl-2-benzothiazole sulfonamide (TBBS)
Styrene butadiene rubber (SBR)
Rubber
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00143057_v44_n5_p1525_Goyanes
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00143057_v44_n5_p1525_Goyanes
record_format dspace
spelling todo:paper_00143057_v44_n5_p1525_Goyanes2023-10-03T14:12:14Z Thermal properties in cured natural rubber/styrene butadiene rubber blends Goyanes, S. Lopez, C.C. Rubiolo, G.H. Quasso, F. Marzocca, A.J. Glass transition temperature NR/SBR blends Specific heat Thermal diffusivity Vulcanization Aromatic polymers Crosslinking Differential scanning calorimetry Glass transition Rheology Solubility Thermal diffusivity Vulcanization N-t-butyl-2-benzothiazole sulfonamide (TBBS) NR/SBR blends Styrene butadiene rubber (SBR) Rubber Blends of natural rubber (NR) and styrene butadiene rubber (SBR) were prepared with sulfur and n-t-butyl-2-benzothiazole sulfonamide (TBBS) as accelerator, varying the amount of each polymer in the blend. Samples were analysed by rheometer curing at 433 K until their maximum torque was reached. The miscibility among the constituent polymers of the cured compounds was studied in a broad range of temperatures by means of differential scanning calorimetry, analyzing the glass transition temperatures of the samples. The specific heat capacity of the compounds was also determined. Thermal diffusivity of the samples was measured in the temperature range from 130 to 400 K with a new device that performs measurements in vacuum. The thermal results are explained on the basis of the structure formed during the vulcanization of the samples considering the variation of the crosslink density of each phase. Finally, a serial thermal conduction model that takes into account the contribution of each phase to the thermal diffusivity was used to fit the experimental results. © 2008 Elsevier Ltd. All rights reserved. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00143057_v44_n5_p1525_Goyanes
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Glass transition temperature
NR/SBR blends
Specific heat
Thermal diffusivity
Vulcanization
Aromatic polymers
Crosslinking
Differential scanning calorimetry
Glass transition
Rheology
Solubility
Thermal diffusivity
Vulcanization
N-t-butyl-2-benzothiazole sulfonamide (TBBS)
NR/SBR blends
Styrene butadiene rubber (SBR)
Rubber
spellingShingle Glass transition temperature
NR/SBR blends
Specific heat
Thermal diffusivity
Vulcanization
Aromatic polymers
Crosslinking
Differential scanning calorimetry
Glass transition
Rheology
Solubility
Thermal diffusivity
Vulcanization
N-t-butyl-2-benzothiazole sulfonamide (TBBS)
NR/SBR blends
Styrene butadiene rubber (SBR)
Rubber
Goyanes, S.
Lopez, C.C.
Rubiolo, G.H.
Quasso, F.
Marzocca, A.J.
Thermal properties in cured natural rubber/styrene butadiene rubber blends
topic_facet Glass transition temperature
NR/SBR blends
Specific heat
Thermal diffusivity
Vulcanization
Aromatic polymers
Crosslinking
Differential scanning calorimetry
Glass transition
Rheology
Solubility
Thermal diffusivity
Vulcanization
N-t-butyl-2-benzothiazole sulfonamide (TBBS)
NR/SBR blends
Styrene butadiene rubber (SBR)
Rubber
description Blends of natural rubber (NR) and styrene butadiene rubber (SBR) were prepared with sulfur and n-t-butyl-2-benzothiazole sulfonamide (TBBS) as accelerator, varying the amount of each polymer in the blend. Samples were analysed by rheometer curing at 433 K until their maximum torque was reached. The miscibility among the constituent polymers of the cured compounds was studied in a broad range of temperatures by means of differential scanning calorimetry, analyzing the glass transition temperatures of the samples. The specific heat capacity of the compounds was also determined. Thermal diffusivity of the samples was measured in the temperature range from 130 to 400 K with a new device that performs measurements in vacuum. The thermal results are explained on the basis of the structure formed during the vulcanization of the samples considering the variation of the crosslink density of each phase. Finally, a serial thermal conduction model that takes into account the contribution of each phase to the thermal diffusivity was used to fit the experimental results. © 2008 Elsevier Ltd. All rights reserved.
format JOUR
author Goyanes, S.
Lopez, C.C.
Rubiolo, G.H.
Quasso, F.
Marzocca, A.J.
author_facet Goyanes, S.
Lopez, C.C.
Rubiolo, G.H.
Quasso, F.
Marzocca, A.J.
author_sort Goyanes, S.
title Thermal properties in cured natural rubber/styrene butadiene rubber blends
title_short Thermal properties in cured natural rubber/styrene butadiene rubber blends
title_full Thermal properties in cured natural rubber/styrene butadiene rubber blends
title_fullStr Thermal properties in cured natural rubber/styrene butadiene rubber blends
title_full_unstemmed Thermal properties in cured natural rubber/styrene butadiene rubber blends
title_sort thermal properties in cured natural rubber/styrene butadiene rubber blends
url http://hdl.handle.net/20.500.12110/paper_00143057_v44_n5_p1525_Goyanes
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AT lopezcc thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends
AT rubiologh thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends
AT quassof thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends
AT marzoccaaj thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends
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