Titre : |
Breaking the ice : The innovative world of icephobic coatings |
Type de document : |
texte imprimé |
Auteurs : |
Cynthia A. Gosselin, Auteur |
Année de publication : |
2024 |
Article en page(s) : |
p. 38-41 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Catégories : |
Glaciophobie Hydrophobie Interfaces (Sciences physiques) Interfaces liquide-liquide Interfaces solide-liquide Revêtements antigel
|
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Anyone who has had the pleasure of scraping ice off a car windshield, looking nervously at beautiful but deadly ice spears hanging from winter rooftops, or waiting on a slow and interminably long aircraft deicing line at an airport has dreamed of having some sort of coating that would eliminate inconvenient ice and snow accumulation. The desire to triumph over ice and snow accumulation has, in fact, been the focus of significant technical work that has been going on since the 1940s in an attempt to make all kinds of surfaces iceand snowphobic.
Icephobicity is defined as the ability of a solid surface to repel ice or prevent ice-film formation due to topographical structures at the ice-surface interface. Ice-repelling characteristics are attributed to the surface structure (sometimes called surface roughness) and/or low surface energy leading to poor ice adhesion allowing for easy removal. |
Note de contenu : |
- Fig. 1 : Hydrophobicity as defined by liquid contact angle
- Fig. 2 : Schematic of a superhydrophobic surface
- Fig. 3 : Ice adhesion depends upon the detachment mode, deformability in shear mode, and hydrophobicity in tensile mode
- Fig. 4 : Schematic illustrating water droplet behavior on surfaces with and without a magnetic field applied. The water droplet on the MAGSS surface forms a magnetic liquid-water interface with lower interfacial strength than solid/water interfaces
- Fig. 5 : A) Water allowed to freeze on an uncoated copper plate is difficult to remove–even after scraping. (B) Placing a magnet beneath the copper plate and coating the top with ferrofluid delayed water freezing and reduced the ice/surface interfacial strength to the point that ice was easily removed from the surface (or slid off if the panel was tilted even 2.5°) |
En ligne : |
https://drive.google.com/file/d/1VXqHT0gHatjPzSHPw82ls8pf2VNWjwZC/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40428 |
in COATINGS TECH > Vol. 21, N° 1 (01-02/2024) . - p. 38-41