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    Static Electrification of Plastics under Friction: The Position of Engineering-Grade Polyethylene Terephthalate in the Triboelectric Series

    79600.pdf (1.190Mb)
    Access Status
    Open access
    Authors
    Zhang, Jinyang
    Darwish, Nadim
    Coote, M.L.
    Ciampi, Simone
    Date
    2020
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhang, J. and Darwish, N. and Coote, M.L. and Ciampi, S. 2020. Static Electrification of Plastics under Friction: The Position of Engineering-Grade Polyethylene Terephthalate in the Triboelectric Series. Advanced Engineering Materials. 22 (3): Article No. 1901201.
    Source Title
    Advanced Engineering Materials
    DOI
    10.1002/adem.201901201
    ISSN
    1438-1656
    Faculty
    Faculty of Science and Engineering
    School
    School of Molecular and Life Sciences (MLS)
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DE160100732
    http://purl.org/au-research/grants/arc/DE160101101
    http://purl.org/au-research/grants/arc/DP190100735
    http://purl.org/au-research/grants/arc/FL170100041
    Remarks

    This is the peer reviewed version of the following article: Zhang, J. and Darwish, N. and Coote, M.L. and Ciampi, S. 2020. Static Electrification of Plastics under Friction: The Position of Engineering-Grade Polyethylene Terephthalate in the Triboelectric Series. Advanced Engineering Materials. 22 (3): Article No. 1901201, which has been published in final form at https://doi.org/10.1002/adem.201901201. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

    URI
    http://hdl.handle.net/20.500.11937/79500
    Collection
    • Curtin Research Publications
    Abstract

    © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim There is an emerging trend to replace moving metallic parts, such as bearings or bushes, with plastic components. The electrostatic hazard associated with plastic components subject to mechanical friction is well documented, but the magnitude as well as physical–chemical origin of this phenomenon remains debated. Using atomic force microscopy and Faraday pail measurements, the triboelectrification of Ertalyte®, a commonly used bearing-grade formulation of polyethylene terephthalate, when rubbed against other polymers and metals, is studied. The sign and magnitude of the net charge that Ertalyte® gains in relation to the chemical nature—electron affinity and ionization energy—of the contacting material are analyzed, concluding that this material should be located toward the negative end of the triboelectric series. It is also shown that large charge densities and fast charge decays result from contact of Ertalyte® with polymers of a small Derjaguin–Muller–Toporov (DMT) modulus and unstable ions, suggesting that ion transfer leads to the electrification of a dynamic insulator/insulator contact. These findings have immediate implications in the choice of the material used to manufacture plastic parts subject to friction and wear and to help address ongoing fundamental questions over the nature of the charge carriers that leads to static electricity.

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