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dc.contributor.authorThomas, Jomin
dc.contributor.authorMoosavian, Sayed Kasra
dc.contributor.authorCutright, Teresa
dc.contributor.authorPugh, Coleen
dc.contributor.authorSoucek, Mark D.
dc.identifier.citationThomas, J., S. K. Moosavian, T. Cutright, C. Pugh, and M. D. Soucek. 2022. "Investigation of Abiotic Degradation of Tire Cryogrinds." Polymer Degradation and Stability 195. doi:10.1016/j.polymdegradstab.2021.109814.en_US
dc.descriptionClick on the DOI link for access the article (may not be free).en_US
dc.description.abstractThe abundance of microplastics found in the environment is a major cause of concern. Tire tread particles containing additives such as curing accelerators and antioxidants, can be a major source of elastomer pollution in the environment. Such tire particles combined with road pavement particles are referred to as tire and road wear particles, TRWP. The environmental availability from parent elastomers and the release of additives in the process of abiotic degradation were evaluated using freeze-thaw, wet-dry and accelerated UV-weathering experiments. Acceleration factor determination tests were conducted to correlate UV-exposure to the natural aging in the environment. Freeze-thaw testing showed many additives such as diphenyl guanidine (DPG), benzothiazole sulfenamide (BTS) and para-phenylene diamine (6 PPD) as tetrahydrofuran leachates and BTS transformation products. Further, UV exposure equivalent to 1.5 yr., 3 yr. and 5 yr. aging resulted in the formation a combination of ketones and carboxylic acids for styrene butadiene rubber (SBR), natural rubber (NR), and butadiene rubber-based tire cryogrinds. Attenuated total reflectance- Fourier- transform infrared spectroscopy (ATR-FTIR) was used to detect the degradation of the elastomers on UV-exposure while gas chromatography-mass spectroscopy (GC-MS) was used as a nontargeted, suspect screening analysis technique. The degradation intermediates and leachates identified using GC-MS represents useful data for the life cycle analysis of the functional polymers and additives and their possibility of environmental release.en_US
dc.subjectDegradation intermediatesen_US
dc.subjectChemical releaseen_US
dc.titleInvestigation of abiotic degradation of tire cryogrindsen_US
dc.rights.holder© 2021 Elsevier Ltd. All rights reserveden_US

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