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Rigorous testing to assess the self-cleaning properties of an ultra-water-repellent silicone rubber surface

Maghsoudi K., Momen Gelareh, Jafari Reza et Farzaneh Masoud. (2019). Rigorous testing to assess the self-cleaning properties of an ultra-water-repellent silicone rubber surface. Surface and Coatings Technology, 374, p. 557-568.

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URL officielle: http://dx.doi.org/doi:10.1016/j.surfcoat.2019.05.0...

Résumé

Ultra-water-repellent silicone-based surfaces were produced to study their self-cleaning properties. First, we investigated the consistency of the micro-nano air pockets that are present between the surface asperities responsible for the formation of the Cassie-Baxter regime. We then performed a comprehensive series of self-cleaning experiments involving both dissolved and non-dissolved contaminants using various materials (e.g., kaolin, carbon black, silica, etc.) and contaminant-applying methods (e.g., dropwise, spraying, wet or dry contaminants). In this paper, the self-cleaning tests were arranged from the less severe, i.e., non- dissolved contamination tests, to more severe, i.e., wet dissolved contamination test, and ending with the most severe, i.e., dry dissolved contamination test. Due to the ultra-low contact angle hysteresis, the produced surfaces showed favorable self-cleaning properties against the various types of contaminants and the different means of contaminant application. The produced surfaces retained their water repellency properties following application of the contaminants and after the cleaning of the surfaces, thus verifying the self-cleaning performance and resistance of the fabricated superhydrophobic silicone surfaces.

Type de document:Article publié dans une revue avec comité d'évaluation
ISSN:02578972
Volume:374
Pages:p. 557-568
Version évaluée par les pairs:Oui
Date:25 Septembre 2019
Identifiant unique:10.1016/j.surfcoat.2019.05.073
Sujets:Sciences naturelles et génie > Génie
Sciences naturelles et génie > Génie > Génie des matériaux et génie métallurgique
Sciences naturelles et génie > Sciences appliquées
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées
Mots-clés:Silicone rubber, Wenzel and Cassie-Baxter regimes, ultra-water-repellent surface, self-cleaning, suspended contamination, dissolved contamination, non-dissolved contamination, outdoor condition, caoutchouc de silicone, régimes Wenzel et Cassie-Baxter, surface ultra-hydrofuge, autonettoyant, contamination dissoute, contamination non dissoute, condition extérieure
Déposé le:12 mars 2020 00:47
Dernière modification:12 mars 2020 00:47
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