Elastic soft material/surface, such as Polydimethylsiloxane (PDMS), is a perspective, useful and low-cost hydrophobic and icephobic coating. While it has been reported to have good mechanical durability, its erosion durability under the high impacting of water droplets pertinent to aircraft inflight icing phenomena has not been explored. In this study, the droplet imping erosion characteristics of an icephobic PDMS surface/material is evaluated systematically upon the dynamic impinging of water droplets at different impact velocities (~ up to 75m/s), in comparison with other state-of-the-art icephobic materials/surfaces, such as superhydrophobic surface (SHS) and slippery liquid-infused porous surface (SLIPS). Surprisingly, the contact angle (CA) of the elastic PDMS is shown to have an over 20° increase (from 105° to 128°), which represents better hydrophobicity, after the erosion test which is mainly contributed to the higher roughness of the eroded PDMS surface. As for the icephobicity evaluation, intact PDMS was found to has ultra-low ice adhesion (~8 kPa), in comparison with SHS (i.e., ~100kPa) and SLIPS (i.e., ~35kPa). PDMS also shows outstandingly stable ice adhesion during the erosion test (i.e., fluctuation only within ~4kPa) as a result of the growth of cracks on the PDMS surface and the increased surface energy.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An Experimental Study to Evaluate the Droplet Impinging Erosion Characteristics of an Icephobic, Elastic Soft Surface


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hu, Hui (Autor:in) / Ma, Liqun (Autor:in) / Liu, Yang (Autor:in) / Zhang, Zichen (Autor:in)

    Kongress:

    International Conference on Icing of Aircraft, Engines, and Structures ; 2019



    Erscheinungsdatum :

    10.06.2019




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    An Experimental Study to Evaluate the Droplet Impinging Erosion Characteristics of an Icephobic, Elastic Soft Surface

    Ma, Liqun / Zhang, Zichen / Liu, Yang et al. | British Library Conference Proceedings | 2019


    Centrifuge Adhesion Test to Evaluate Icephobic Coatings

    Fortin, Guy / Beisswenger, Arlene / Perron, Jean | AIAA | 2010


    Centrifuge Adhesion Test to Evaluate Icephobic Coatings

    Fortin, G. / Beisswenger, A. / Perron, J. et al. | British Library Conference Proceedings | 2010


    Durable Icephobic and Erosion Resistant Coatings Based on Quasicrystals

    Yang, Qimeng / Dolatabadi, Ali / Golovin, Kevin | British Library Conference Proceedings | 2023


    Durable Icephobic and Erosion Resistant Coatings Based on Quasicrystals

    Dolatabadi, Ali / Golovin, Kevin / Yang, Qimeng | SAE Technical Papers | 2023