The surfaces that shed drops helps with mitigation of icing. Shedding of drop depends on surface hydrophobicity, which becomes affected when exposed to water and/or UV. The hydrophobicity degradation of six (Spray SHS, Etched Al SHS, Hydrobead, Neverwet, Waterbeader, and WX2100) different super-hydrophobic surfaces (SHS), exposed to water or UV, were studied from the drop shedding perspective. Two methods were adopted for the hydrophobicity analysis. Among them, one is to study the contact angles (CA) and contact angle hysteresis (CAH) change at static state (i.e., no airflow) compared to the untreated surface. The other one is to analyze the change in critical air velocity (Uc) for a given drop exposed to airflow, on water/UV treated surfaces at room temperature (22 °C) and icing conditions (−1 and −7 °C). For the water/UV treated surfaces, the static CAH and Uc (for all temperatures tested) for drops on Etched Al SHS, Hydrobead, and Neverwet, were found to be less than the specified value for a surface to deem as under performing. Hence, from the overall analysis, Etched Al SHS, Hydrobead, and Neverwet, are considered retaining their performance fairly well at both room temperature and icing conditions after exposure.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effects of Prolonged Exposure to UV and Water on Super-Hydrophobic Surfaces at Ambient and Icing Conditions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2015 International Conference on Icing of Aircraft, Engines, and Structures ; 2015



    Erscheinungsdatum :

    2015-06-15




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    An Explorative Study to Use Super-Hydrophilic/Super-Hydrophobic Hybrid Surfaces for Aircraft Icing Mitigation

    Hu, Haiyang / Hu, Hui / Liu, Yang | British Library Conference Proceedings | 2019



    Test model for testing anti-icing and deicing effects of super-hydrophobic material

    XU LINGSONG / ZHANG FUKUN / JIANG XINKAI et al. | Europäisches Patentamt | 2022

    Freier Zugriff

    Super-hydrophobic anti-icing aviation aluminum alloy surface and production method

    ZHONG MINLIN / ZHANG HONGJUN / PAN RUI | Europäisches Patentamt | 2020

    Freier Zugriff

    Composite wing anti-icing and de-icing system and method combining super-hydrophobic surface and loop heat pipe

    WANG XINCHENG / WANG YU / YUAN LINHUI | Europäisches Patentamt | 2023

    Freier Zugriff