Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS
Torque curves, measured with a moving die rheometer at temperatures between 413 and 473 K, were used to characterize the vulcanization of styrene-butadiene rubber with different cure systems based on sulfur and TBBS (N-t-butyl-2-benzothiazole sulfenamide). Several compounds were prepared varying the...
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todo:paper_00218995_v101_n1_p35_Marzocca2023-10-03T14:22:22Z Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS Marzocca, A.J. Mansilla, M.A. Activation energy Cure reaction Kinetics Styrene-butadiene rubber Vulcanization Activation energy Butadiene Elastomers Reaction kinetics Rheometers Rubber Sulfur Torque control Vulcanization Cure systems Isothermal curing Kinetic parameters Torque curves Styrene elastomer kinetics polybutadiene polystyrene synthetic rubber temperature effect torque Torque curves, measured with a moving die rheometer at temperatures between 413 and 473 K, were used to characterize the vulcanization of styrene-butadiene rubber with different cure systems based on sulfur and TBBS (N-t-butyl-2-benzothiazole sulfenamide). Several compounds were prepared varying the amount of sulfur and accelerator between 0.5 and 2.5 phr in the formulation. By means of normalized torque curves, the kinetic of cure of these samples was evaluated considering the model of isothermal curing proposed by Kamal and Sourour. In this frame, the parameters of the kinetic model were obtained. The effect of the amount of sulfur and accelerator in the compound on the kinetic parameters was investigated and a maximum of the rate parameter k for the compound with formulation with 1.0 phr of sulfur and 2.0 phr of accelerator was found. A marked decrease in the activation energy of the cure process of the elastomer was observed at higher levels of TBBS in the compound. © 2006 Wiley Periodicals, Inc. Fil:Marzocca, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mansilla, M.A. 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_00218995_v101_n1_p35_Marzocca |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Activation energy Cure reaction Kinetics Styrene-butadiene rubber Vulcanization Activation energy Butadiene Elastomers Reaction kinetics Rheometers Rubber Sulfur Torque control Vulcanization Cure systems Isothermal curing Kinetic parameters Torque curves Styrene elastomer kinetics polybutadiene polystyrene synthetic rubber temperature effect torque |
| spellingShingle |
Activation energy Cure reaction Kinetics Styrene-butadiene rubber Vulcanization Activation energy Butadiene Elastomers Reaction kinetics Rheometers Rubber Sulfur Torque control Vulcanization Cure systems Isothermal curing Kinetic parameters Torque curves Styrene elastomer kinetics polybutadiene polystyrene synthetic rubber temperature effect torque Marzocca, A.J. Mansilla, M.A. Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| topic_facet |
Activation energy Cure reaction Kinetics Styrene-butadiene rubber Vulcanization Activation energy Butadiene Elastomers Reaction kinetics Rheometers Rubber Sulfur Torque control Vulcanization Cure systems Isothermal curing Kinetic parameters Torque curves Styrene elastomer kinetics polybutadiene polystyrene synthetic rubber temperature effect torque |
| description |
Torque curves, measured with a moving die rheometer at temperatures between 413 and 473 K, were used to characterize the vulcanization of styrene-butadiene rubber with different cure systems based on sulfur and TBBS (N-t-butyl-2-benzothiazole sulfenamide). Several compounds were prepared varying the amount of sulfur and accelerator between 0.5 and 2.5 phr in the formulation. By means of normalized torque curves, the kinetic of cure of these samples was evaluated considering the model of isothermal curing proposed by Kamal and Sourour. In this frame, the parameters of the kinetic model were obtained. The effect of the amount of sulfur and accelerator in the compound on the kinetic parameters was investigated and a maximum of the rate parameter k for the compound with formulation with 1.0 phr of sulfur and 2.0 phr of accelerator was found. A marked decrease in the activation energy of the cure process of the elastomer was observed at higher levels of TBBS in the compound. © 2006 Wiley Periodicals, Inc. |
| format |
JOUR |
| author |
Marzocca, A.J. Mansilla, M.A. |
| author_facet |
Marzocca, A.J. Mansilla, M.A. |
| author_sort |
Marzocca, A.J. |
| title |
Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| title_short |
Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| title_full |
Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| title_fullStr |
Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| title_full_unstemmed |
Vulcanization kinetic of styrene-butadiene rubber by sulfur/TBBS |
| title_sort |
vulcanization kinetic of styrene-butadiene rubber by sulfur/tbbs |
| url |
http://hdl.handle.net/20.500.12110/paper_00218995_v101_n1_p35_Marzocca |
| work_keys_str_mv |
AT marzoccaaj vulcanizationkineticofstyrenebutadienerubberbysulfurtbbs AT mansillama vulcanizationkineticofstyrenebutadienerubberbysulfurtbbs |
| _version_ |
1807318101954396160 |