Characterization of recycled styrene butadiene rubber ground tire rubber: Combining X‐ray fluorescence,differential scanning calorimetry,and dynamical thermal analysis for quality control |
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| Authors: | Huan Liang Denis Rodrigue Josée Brisson |
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| Affiliation: | 1. CERMA (Centre de recherche sur les matériaux avancés) and CQMF (Centre québécois sur les matériaux fonctionnels), Université Laval, Quebec City, Quebec, Canada;2. Department of Chemistry, Faculté des sciences et de génie, Université Laval, Quebec City, Quebec, Canada;3. Department of Chemical Engineering, Faculté des sciences et de génie, Université Laval, Quebec City, Quebec, Canada |
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| Abstract: | Appraisal of the main rubber characterization techniques for styrene butadiene rubber (SBR) was performed on standard SBR samples as well as recycled ground tire rubber (GTR) from an industrial tire recycling facility, containing a blend of SBR and natural rubber. The aim of the work was to provide additional information relevant to quality control in the field of rubber recycling. Benchmark characterization of industrial samples by inductively coupled plasma optical emission spectrometry, atomic absorption spectrometry, solid‐state proton nuclear magnetic resonance, and elemental (CHNS) analysis are reported. X‐ray fluorescence spectrometry is shown to be rapid and quantitative for determining the zinc content in an industrial context. Thermogravimetric analysis, already used to determine carbon black and inorganic material content in rubbers and GTR, is recommended for determination of monomer weight ratios of SBR sources not containing other rubbers, but not for GTR. Differential scanning calorimetry (DSC) measurements of the glass‐transition show that changes in monomer ratio affect glass‐transition temperature values, and therefore, DSC can be used to detect changes in rubber composition from batch to batch. These results show that DSC and X‐ray fluorescence spectroscopy characterization techniques can be used for GTR and may lead to more thorough and rapid quality control procedures of these complex samples. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 42692. |
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| Keywords: | differential scanning calorimetry recycling rubber thermal properties X‐ray |
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