Journal ArticleDOI
Superhydrophobic surfaces: are they really ice-repellent?
TLDR
It is shown that the anti-icing efficiency of superhydrophobic surfaces is significantly lower in a humid atmosphere, as water condensation both on top of and between surface asperities takes place, leading to significantly larger values of ice adhesion strength.Abstract:
This work investigates the anti-ice performance of various superhydrophobic surfaces under different conditions. The adhesion strength of glaze ice (similar to that deposited during “freezing rain”) is used as a measure of ice-releasing properties. The results show that the ice-repellent properties of the materials deteriorate during icing/deicing cycles, as surface asperities appear to be gradually damaged. It is also shown that the anti-icing efficiency of superhydrophobic surfaces is significantly lower in a humid atmosphere, as water condensation both on top of and between surface asperities takes place, leading to significantly larger values of ice adhesion strength. This work thus shows that superhydrophobic surfaces are not always ice-repellent and their use as anti-ice materials may therefore be limited.read more
Citations
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Journal ArticleDOI
Bioinspired Surfaces with Superwettability: New Insight on Theory, Design, and Applications
TL;DR: Design, and Applications Shutao Wang,“, Kesong Liu, Xi Yao, and Lei Jiang*,†,‡,§ †Laboratory of Bio-inspired Smart Interface Science, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Science.
Journal ArticleDOI
Liquid-Infused Nanostructured Surfaces with Extreme Anti-Ice and Anti-Frost Performance
Philseok Kim,Tak Sing Wong,Jack Alvarenga,Michael J. Kreder,Wilmer E. Adorno-Martinez,Joanna Aizenberg +5 more
TL;DR: Results indicate that SLIPS is a promising candidate for developing robust anti-icing materials for broad applications, such as refrigeration, aviation, roofs, wires, outdoor signs, railings, and wind turbines.
Journal ArticleDOI
Design of anti-icing surfaces: smooth, textured or slippery?
TL;DR: Different strategies to achieve ice repellency on various hydrophilic and hydrophobic surfaces are reviewed with a focus on the recent development of superhydrophobic and lubricant-infused surfaces.
Journal ArticleDOI
Anti-icing performance of superhydrophobic surfaces
TL;DR: In this article, the anti-icing performance of several micro/nano-rough hydrophobic coatings with different surface chemistry and topography was evaluated by spinning the samples in a centrifuge at constantly increasing speed until ice delamination occurred.
Journal ArticleDOI
Bio-inspired strategies for anti-icing.
TL;DR: Effectively trapping air in surface textures of superhydrophobic surfaces weakens the interaction of the surfaces with liquid water, which enables timely removal of impacting and condensed water droplets before freezing occurs.
References
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PatentDOI
Anti-icing superhydrophobic coatings
TL;DR: N nanoparticle-polymer composites are used to demonstrate the anti-icing capability of superhydrophobic surfaces and report direct experimental evidence that such surfaces are able to prevent ice formation upon impact of supercooled water both in laboratory conditions and in natural environments.
Journal ArticleDOI
Non-sticking drops
TL;DR: In this paper, the authors describe how to make droplets stick to their substrates (even if they are inclined), which is a practical issue in many cases (windshields, window panes, greenhouses, or microfluidic devices).
Journal ArticleDOI
Ice adhesion on super-hydrophobic surfaces
TL;DR: In this paper, ice adhesion strength on flat hydrophobic and rough super-hydrophobic coatings with similar surface chemistry (based on same fluoropolymer) is compared.
Journal ArticleDOI
Delayed freezing on water repellent materials.
TL;DR: It is shown here that the presence of this sublayer induces a significant delay in freezing, when depositing water on cold solids, and if the substrate is slightly tilted, these drops can thus be removed without freezing and without accumulating on the substrate, a property of obvious practical interest.
Journal ArticleDOI
How wetting hysteresis influences ice adhesion strength on superhydrophobic surfaces.
TL;DR: This work measured the adhesion strength of artificially created glaze ice on rough fluoropolymer-based hydrophobic surfaces with different contact angle (CA) and wetting hysteresis to show a direct correlation between ice repellency and CA on superhydrophilic surfaces.