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Abstract
Waste tires management is serious and global environmental problem. Therefore, searching for new andindustrially applicable solutions to convert waste tire rubber into high-value added products is gaining more andmore attention. Rubber devulcanization is step forward for further developing rubber recycling and upcyclingtechnologies. Thermo-mechanical treatment of ground tire rubber (GTR) performed in twin screw extruders iscurrently the most popular solution, while literature information about alternative continuous methods are verylimited. In this field of research, using of planetary extruders as multi-screw reactors seems to be interestingsolution, which is due to their high mixing efficiency, good heat exchange and devolatilization capacity.In this work, thermo-mechanical treatment of GTR was performed in a lab-scale planetary extruder. Devulcanization effectiveness has been investigated by extruder torque monitoring, Mooney viscosity, swelling measurements, Horikx theory, Fourier transform infrared spectroscopy, scanning electron microscopy,thermogravimetry, curing characteristics and tensile tests. Volatile organic compounds emitted from untreatedwaste tire rubber and reclaimed rubbers were determined using a gas chromatography combined with flameionization detector or mass spectrometry. The results showed that GTR devulcanization efficiency and emissionlevels of volatile organic compounds increased with higher temperature during planetary extrusion. Mooneyviscosity and tensile properties of GTR treated using a planetary extruder were comparable to the commerciallyavailable reclaimed rubbers. This work confirms that waste tire rubber devulcanization in the planetary extruderis a promising approach for further studies towards sustainable development of rubber recycling technologiesand circular economy.
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Authors (4)
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Shifeng Wang
- Department of Polymer Science and Engineering, Shanghai State Key Lab of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 200240 Shanghai, P.R. China
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Sustainable Materials and Technologies
no. 43,
ISSN: 2214-9937 - Language:
- English
- Publication year:
- 2025
- Bibliographic description:
- Rodak A., Haponiuk J., Wang S., Formela K.: Waste tire rubber with low and high devulcanization level prepared in the planetary extruder// Sustainable Materials and Technologies -,iss. 43 (2025), s.e01193-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.susmat.2024.e01193
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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