Study of Thermal Degradation Kinetics of Elastomeric Powder (Ground Tire Rubber) |
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| Authors: | A. Nadal Gisbert J. López Martínez A. Macias Garcia |
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| Affiliation: | 1. Department of Mechanical and Materials Engineering , Polytechnic University of Valencia , Paseo del Viaducto, Valencia, Spain;2. Department of Inorganic Chemistry , University of Extremadura , Avda. de Elvas, Badajoz, Spain |
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| Abstract: | This paper investigates the use of thermogravimetric analysis to study the kinetics of thermal degradation of ground tire rubber (GTR) obtained from reclaimed tires. We analyzed the composition of GTR and determined the content percentage of its components (volatile compounds, rubber, and ash) using thermogravimetric analysis (TGA). T 1 and T 2 temperature peaks corresponding to the maximum normalized weight loss rate (NWLR) of the two main rubber components of tires NR (natural rubber) and a BR/SBR (butadiene/styrene-butadiene rubber blend) using the Gaussian deconvolution method has been determined. The influence of GTR particle size and heating rate on reaction rates (dx/dt) and on degradation time during the degradation process has been analyzed. |
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| Keywords: | Degradation kinetics DTG Ground tire rubber Tire powder TG |
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