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, Silvia Nair, Marzocca, Angel José
Publicado:	2008
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:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v44_n5_p1525_Goyanes 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	paper:paper_00143057_v44_n5_p1525_Goyanes
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spelling	paper:paper_00143057_v44_n5_p1525_Goyanes2023-06-08T14:36:57Z Thermal properties in cured natural rubber/styrene butadiene rubber blends Goyanes, Silvia Nair Marzocca, Angel José 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. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v44_n5_p1525_Goyanes 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, Silvia Nair Marzocca, Angel José 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.
author	Goyanes, Silvia Nair Marzocca, Angel José
author_facet	Goyanes, Silvia Nair Marzocca, Angel José
author_sort	Goyanes, Silvia Nair
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
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00143057_v44_n5_p1525_Goyanes http://hdl.handle.net/20.500.12110/paper_00143057_v44_n5_p1525_Goyanes
work_keys_str_mv	AT goyanessilvianair thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends AT marzoccaangeljose thermalpropertiesincurednaturalrubberstyrenebutadienerubberblends
_version_	1768544985459720192

Thermal properties in cured natural rubber/styrene butadiene rubber blends

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