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Polymer-Plastics Technology and Engineering Volume 47, 2007 - Issue 1
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Original Articles

Study of Thermal Degradation Kinetics of Elastomeric Powder (Ground Tire Rubber)

A. Nadal Gisbert Department of Mechanical and Materials Engineering, Polytechnic University of Valencia, Paseo del Viaducto, Valencia, Spain
,
J. E. Crespo Amorós Department of Mechanical and Materials Engineering, Polytechnic University of Valencia, Paseo del Viaducto, Valencia, SpainCorrespondence[email protected]
,
J. López Martínez Department of Mechanical and Materials Engineering, Polytechnic University of Valencia, Paseo del Viaducto, Valencia, Spain
&
A. Macias Garcia Department of Inorganic Chemistry, University of Extremadura, Avda. de Elvas, Badajoz, Spain
Pages 36-39 | Published online: 26 Dec 2007
 
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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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