Kineticparameters from thermogravimetric study of used rubber granulates–polyurethanecomposites |
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Authors: | W. W. Sułkowski S. Mistarz T. Borecki M. Moczyński A. Danch J. Borek M. Maciążek Anna Sułkowska |
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Affiliation: | 1. Department of Environmental Chemistry and Technology, Institute of Chemistry, University of Silesia, Katowice, Poland, 40-006, Szkolna 9 2. Institute of Physics, University of Silesia, Katowice, Poland, 40-007, Universytecka 4 3. Department of Physical Pharmacy, Medical University of Silesia, Sosnowiec, Poland, 41-200, Jagiellońska 4
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Abstract: | From the TG data of rubber granulates, different polyurethane and composites it can be seen that the thermal decomposition for the rubber granulate and all of the composites start above 520 K. Two major mass losses for the rubber granulates and majority of the composites were observed and thermal decomposition is essentially complete by ~820 K. The changes of activation energies of lower and higher temperature decomposition, calculated according to the different equations were observed for a priori assumed first-order reaction for devolatilisation. Differences between determined and calculated results could suggest a possible reaction between polyurethane agents and rubber granulate during the composites formations. |
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