Cure modeling and mechanical properties of counter rotating twin screw extruder devulcanized ground rubber tire—natural rubber blends

Ground rubber tire (GRT) powder was devulcanised using a counter-rotating twin-screw extruder and the product was mixed with virgin natural rubber (NR) in various proportions. The data obtained from a cure rheometer was used to fit in a four-parameter logistic model to correlate the variation of tor...

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Bibliographic Details
Published in:Journal of polymer research 2009-03, Vol.16 (2), p.133-141
Main Author: Balasubramanian, Maridass
Format: Article
Language:English
Subjects:
Blends
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Cures
Grounds
Industrial Chemistry/Chemical Engineering
Mechanical properties
Natural rubber
Polymer Sciences
Rheometers
Rubber
Tires
Twin screw extruders
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Summary:Ground rubber tire (GRT) powder was devulcanised using a counter-rotating twin-screw extruder and the product was mixed with virgin natural rubber (NR) in various proportions. The data obtained from a cure rheometer was used to fit in a four-parameter logistic model to correlate the variation of torque with time. The mechanical properties were evaluated which suggested that tensile strength and elongation at break increased with increase in virgin natural rubber when added to the extrusion processed GRT.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-008-9211-5