Variation in Abundance Ratio of Isoprene and Dipentene Produced from Wear Particles Composed of Natural Rubber by Pyrolysis Depending on the Particle Size and Thermal Aging

Overview

Journal Polymers (Basel)

Publisher MDPI

Date 2023 Feb 28

PMID 36850215

Authors

Uiyeong Jung

Sung-Seen Choi

Affiliations

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Abstract

Tire wear particles (TWPs) are generated by friction between the road and the tire. TWPs are one of the major microplastics found in environmental samples, such as road dust, particulate matter (PM), and sediment. TWP contents in environmental samples are generally analyzed using the pyrolysis technique. Tire tread compounds of heavy vehicles are usually composed of natural rubber (NR). Isoprene and dipentene are the principal pyrolysis products of NR, and dipentene is employed as the key marker for the determination of the TWP contents. In this study, an NR abrasion specimen was thermally aged, and an abrasion test was performed to obtain the wear particles. The influence of the wear particle size and thermal aging on the pyrolysis behavior of NR was investigated. The isoprene/dipentene ratio exponentially increased as the wear particle size decreased, and it was also increased by the thermal aging of the abrasion specimen. The increased isoprene/dipentene ratio by thermal aging was explained by increasing the crosslink density. Using the relationship between the wear particle size and the isoprene/dipentene ratio, it is possible to estimate the isoprene/dipentene ratio for very small TWP such as PM. The experimental results concluded that the wear particle size and thermal aging affect the formation of the key pyrogenic products, and the influencing factors should be considered for the quantification of TWP contents in the environmental samples.

References

Wagner S, Huffer T, Klockner P, Wehrhahn M, Hofmann T, Reemtsma T . Tire wear particles in the aquatic environment - A review on generation, analysis, occurrence, fate and effects. Water Res. 2018; 139:83-100. DOI: 10.1016/j.watres.2018.03.051. View

Kole P, Lohr A, Van Belleghem F, Ragas A . Wear and Tear of Tyres: A Stealthy Source of Microplastics in the Environment. Int J Environ Res Public Health. 2017; 14(10). PMC: 5664766. DOI: 10.3390/ijerph14101265. View

Chae E, Choi S . Analysis of Polymeric Components in Particulate Matter Using Pyrolysis-Gas Chromatography/Mass Spectrometry. Polymers (Basel). 2022; 14(15). PMC: 9370720. DOI: 10.3390/polym14153122. View

Han S, Gu B, Kim S, Kim S, Mun D, Morita K . Effect of Sulfur Variation on the Vulcanizate Structure of Silica-Filled Styrene-Butadiene Rubber Compounds with a Sulfide-Silane Coupling Agent. Polymers (Basel). 2020; 12(12). PMC: 7761289. DOI: 10.3390/polym12122815. View

Unice K, Kreider M, Panko J . Use of a deuterated internal standard with pyrolysis-GC/MS dimeric marker analysis to quantify tire tread particles in the environment. Int J Environ Res Public Health. 2012; 9(11):4033-55. PMC: 3524611. DOI: 10.3390/ijerph9114033. View

Jarlskog I, Stromvall A, Magnusson K, Gustafsson M, Polukarova M, Galfi H . Occurrence of tire and bitumen wear microplastics on urban streets and in sweepsand and washwater. Sci Total Environ. 2020; 729:138950. DOI: 10.1016/j.scitotenv.2020.138950. View

Kreider M, Panko J, McAtee B, Sweet L, Finley B . Physical and chemical characterization of tire-related particles: comparison of particles generated using different methodologies. Sci Total Environ. 2009; 408(3):652-9. DOI: 10.1016/j.scitotenv.2009.10.016. View

Singh V, Biswal A, Kesarkar A, Mor S, Ravindra K . High resolution vehicular PM10 emissions over megacity Delhi: Relative contributions of exhaust and non-exhaust sources. Sci Total Environ. 2019; 699:134273. DOI: 10.1016/j.scitotenv.2019.134273. View

Zhang J, Peng J, Song C, Ma C, Men Z, Wu J . Vehicular non-exhaust particulate emissions in Chinese megacities: Source profiles, real-world emission factors, and inventories. Environ Pollut. 2020; 266(Pt 2):115268. DOI: 10.1016/j.envpol.2020.115268. View

10.

Wik A, Dave G . Occurrence and effects of tire wear particles in the environment--a critical review and an initial risk assessment. Environ Pollut. 2008; 157(1):1-11. DOI: 10.1016/j.envpol.2008.09.028. View

11.

Baensch-Baltruschat B, Kocher B, Stock F, Reifferscheid G . Tyre and road wear particles (TRWP) - A review of generation, properties, emissions, human health risk, ecotoxicity, and fate in the environment. Sci Total Environ. 2020; 733:137823. DOI: 10.1016/j.scitotenv.2020.137823. View

12.

Moon B, Jun N, Park S, Seok C, Hong U . A Study on the Modified Arrhenius Equation Using the Oxygen Permeation Block Model of Crosslink Structure. Polymers (Basel). 2019; 11(1). PMC: 6401957. DOI: 10.3390/polym11010136. View

13.

Gossmann I, Halbach M, Scholz-Bottcher B . Car and truck tire wear particles in complex environmental samples - A quantitative comparison with "traditional" microplastic polymer mass loads. Sci Total Environ. 2021; 773:145667. DOI: 10.1016/j.scitotenv.2021.145667. View

14.

Moon B, Lee J, Park S, Seok C . Study on the Aging Behavior of Natural Rubber/Butadiene Rubber (NR/BR) Blends Using a Parallel Spring Model. Polymers (Basel). 2019; 10(6). PMC: 6404147. DOI: 10.3390/polym10060658. View

15.

Kumagai S, Yoshioka T . Latest Trends in Pyrolysis Gas Chromatography for Analytical and Applied Pyrolysis of Plastics. Anal Sci. 2020; 37(1):145-157. DOI: 10.2116/analsci.20SAR04. View