Mathematical characterization of values of rheological variables during the networking reaction of rubber mixtures based on SBR

1st International Conference on Rheology and Modeling of Materials

物理学;材料科学

Seliga, E.^1 ; Boák, O.^1 ; Rusnáková, S.^2 ; Minárik, S.^1 ; Tóth, M.^3

Department of Physics, Institute of Materials, Faculty of Materials Science and Technology SUT, J. Bottu 25, Trnava

917 24, Slovakia^1

Department of Production Engineering, Faculty of Technology, Thomas Bata University in Zlin, Nad Stránmi 4511, Zlím

760 05, Czech Republic^2

FLEXOPRINT, S. R. O., Bystrická cesta 69, Ruomberok

034 01, Slovakia^3

关键词: Constant temperature;    Crosslinking reaction;    First order kinetics;    Induction periods;    Mathematical characterization;    Reaction rate coefficients;    Styrene butadienes;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/602/1/012011/pdf
DOI  :  10.1088/1742-6596/602/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The article presents an analysis of cross-linking reaction using measurements of time dependencies of torque at constant temperature from the range 100 up to 200 °C. The measured results obtained on sample based on styrene - butadiene (SBS) prepared in the laboratory show the behaviour which can be well described by equations of chemical reactions of first-order kinetics. It is possible mathematically describe significant constants of the kinetics of networking reaction (induction period, reaction rate coefficient) by the solution of differential equations and by mathematical approximation. Constants are exponentially dependent on the temperature of vulcanization, while dependencies are Arrhenius like. Math description allows describe the progress of the vulcanization reaction also in the temperature range outside of the monitoring interval, i.e. in the area of extremely long times required for the realization of the cross-linking reaction.