The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

Alenka Ojstršek, Natalija Virant , Daryl Fox, Latha Krishnan, Andrew Cobley

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    10 Citations (Scopus)
    22 Downloads (Pure)

    Abstract

    The selective metallisation of textiles is becoming a very important process in the development of electronic or e-textiles. This study investigated the efficacy of polymer coatings for the protection of copper (Cu) conductive tracks electroless plated on polyester (PES) fabric against laundering and rubbing, without essentially affecting the physical-mechanical and optical properties of the base material. After the electroless deposition of a consistent layer of Cu onto PES, four polymers were applied individually by screen-printing or padding. The physical-mechanical characterisation of coated textiles revealed that polyurethane resin (PUR) and modified acrylate resin (AR) had little effect on the air permeability, tensile strength and breaking tenacity of the PES, as compared to silicone elastomer polydimethylsiloxane (PDMS) and epoxy resin (ER). On the other hand, PUR and PDMS had higher abrasion resistance and photo-stability under prolonged UV irradiation, as compared to AR and ER. In addition, freshly Cu plated samples were coated with polymers, washed up to 30 cycles and characterised by measuring their electrical resistivity, determination of colour changes and the examination of the surface morphology. Based on these results, PUR presented the most suitable protection of Cu tracks on PES, with the lowest impact on physical-mechanical properties. ER is not recommended to be used for protection of Cu tracks on fabrics, due to its rigidity, low photo-stability, washing and wear durability
    Original languageEnglish
    Article number1277
    Number of pages14
    JournalPolymers
    Volume12
    Issue number6
    DOIs
    Publication statusPublished - 3 Jun 2020

    Bibliographical note

    This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

    Funder

    European Union’s Horizon 2020 research and innovation program, under grant agreement No 760789.

    Keywords

    • PES fabric
    • electroless copper plating;
    • conductive textile
    • polymers coatings
    • corrosion protection

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