Results 21 to 30 of about 19,917 (251)

A non-fluorinated superhydrophobic composite coating with excellent anticorrosion and wear-resistant performance

open access: yesFrontiers in Chemistry, 2022
The facile and low-cost fabrication of fluorine-free superhydrophobic metal surfaces for anticorrosion remains a challenging issue. Here, we report a superhydrophobic coating based on polyacrylate/SiO2 nanoparticles/graphene oxide sheets through a simple
Peng Xiao   +4 more
doaj   +1 more source

Perpetual superhydrophobicity

open access: yesSoft Matter, 2016
A liquid droplet placed on a geometrically textured surface may take on a "suspended" state, in which the liquid wets only the top of the surface structure, while the remaining geometrical features are occupied by vapor. This superhydrophobic Cassie-Baxter state is characterized by its composite interface which is intrinsically fragile and, if ...
GIACOMELLO, ALBERTO   +3 more
openaire   +5 more sources

Zirconia Nanotube Coatings - UV-Resistant Superhydrophobic Surfaces [PDF]

open access: yes, 2021
Surface modifications influence material interactions such as wettability, imparting hydrophobicity or hydrophilicity. Mainstream research focused on enhancing product shelf-life, directs attention towards superhydrophobic surfaces (SHS).
Swathi Naidu, Vakamulla Raghu   +2 more
core   +1 more source

Research progress in preparation and properties of superhydrophobic surface on metal substrates

open access: yesCailiao gongcheng, 2019
The research progress of superhydrophobic surface on metal substrates was reviewed. The main preparation methods of metal-based superhydrophobic surface were discussed, and the advantages and disadvantages of different preparation method were compared ...
ZHANG Zhi-bin   +4 more
doaj   +1 more source

Flexible conformable hydrophobized surfaces for turbulent flow drag reduction [PDF]

open access: yes, 2015
In recent years extensive work has been focused onto using superhydrophobic surfaces for drag reduction applications. Superhydrophobic surfaces retain a gas layer, called a plastron, when submerged underwater in the Cassie-Baxter state with water in ...
Fairhurst, David   +5 more
core   +1 more source

Change in drag, apparent slip and optimum air layer thickness for laminar flow over an idealised superhydrophobic surface [PDF]

open access: yes, 2013
Analytic results are derived for the apparent slip length, the change in drag and the optimum air layer thickness of laminar channel and pipe flow over an idealised superhydrophobic surface, i.e. a gas layer of constant thickness retained on a wall.
Newton, M.I.   +9 more
core   +1 more source

Numerical Study on Laminar Drag Reduction for Superhydrophobic Surfaces with Continuous V-Shaped Microstructures [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
Superhydrophobic surfaces have attracted great attention owing to their capacity of reducing fluid resistance. Most of the previous numerical simulations on drag reduction of the superhydrophobic surfaces have concentrated on the rectangular ...
Y. Xu, C. Ruan
doaj   +1 more source

A Thermochromic Superhydrophobic Surface [PDF]

open access: yesScientific Reports, 2016
AbstractHighly enhanced solid-state thermochromism is observed in regioregular poly(3-hexylthiophene), P3HT, when deposited on a superhydrophobic polymer-SiO2 nanocomposite coating. The conformal P3HT coating on the nanocomposite surface does not alter or reduce superhydrophicity while maintaining its reversible enhanced thermochromism.
Cataldi, P.   +5 more
openaire   +3 more sources

Control of Wettability of Carbon Nanotube Array by Reversible Dry Oxidation for Superhydrophobic Coating and Supercapacitor Applications [PDF]

open access: yes, 2013
In this thesis, dry chemical modification methods involving UV/ozone, oxygen plasma, and vacuum annealing treatments are explored to precisely control the wettability of CNT arrays.
Aria, Adrianus Indrat
core   +1 more source

Propulsion on a superhydrophobic ratchet [PDF]

open access: yesScientific Reports, 2014
Liquids in the Leidenfrost state were shown by Linke to self-propel if placed on ratchets. The vapour flow below the liquid rectified by the asymmetric teeth entrains levitating drops by viscosity. This effect is observed above the Leidenfrost temperature of the substrate, typically 200°C for water.
Dupeux, Guillaume   +4 more
openaire   +4 more sources

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