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Traceability of VOCs in tire inner liner by chromatography-mass spectrometry

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Abstract

Many parts of the vehicle cabin generate volatile organic compounds (VOCs), and some are hazardous and/or odorous to humans. In this study, VOCs in the inner liner of automobile spare tire, including raw rubbers and resins, were detected by gas chromatography-mass spectrometry (GC-MS) coupled with an extracting method of static headspace sampling (SHS). The results demonstrated that the sources of VOCs can be traced back to raw rubbers and resins: alkylphenol resins can release a large amount of 2,4,4-trimethyl-1-pentene and 2,2,4,6,6-pentamethyl-3-heptene; chlorobutyl rubber (CIIR) contained 3-methyl-pentane, and methyl-cyclopentane, and these VOCs are odorous. When alkylphenol resin and natural rubber (NR) with low VOCs were used to replace the corresponding resin and NR in the initial formulation, the total volatile organic compounds (TVOCs) in the inner liner could be reduced. We expected that the information gained from this work could provide a basic reference for the manufacture of environmental-friendly tire products.

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The data sets supporting the results of this article are included within the article and its additional files.

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Acknowledgements

The authors would like to acknowledge Ph.D. Qingyuan Han for improving the English of this manuscript.

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This research did not receive specific funding.

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All authors contributed to the conception and design of this study. The experiment and the manuscript’s first draft were performed by XC and BZ. The literature search and data analysis were performed by XC. The formulation design was performed by DW, LC, XC, and BZ. The review and editing were performed by YW and ZD. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Zhenxia Du or You** Wu.

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The authors declare no competing interests.

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Responsible Editor: Philippe Garrigues

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**n Chen and Boyu Zhang are co-first authors.

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Chen, ., Zhang, B., Wang, D. et al. Traceability of VOCs in tire inner liner by chromatography-mass spectrometry. Environ Sci Pollut Res 29, 9685–9692 (2022). https://doi.org/10.1007/s11356-021-16284-1

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  • DOI: https://doi.org/10.1007/s11356-021-16284-1

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