منابع مشابه
How superhydrophobicity breaks down.
A droplet deposited or impacting on a superhydrophobic surface rolls off easily, leaving the surface dry and clean. This remarkable property is due to a surface structure that favors the entrainment of air cushions beneath the drop, leading to the so-called Cassie state. The Cassie state competes with the Wenzel (impaled) state, in which the liquid fully wets the substrate. To use superhydropho...
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This paper is derived from a training session prepared for COST P21. It is intended as an introduction to superhydrophobicity to scientists who may not work in this area of physics or to students. Superhydrophobicity is an effect where roughness and hydrophobicity combine to generate unusually hydrophobic surfaces, causing water to bounce and roll off as if it were mercury and is used by plants...
متن کاملSpontaneous breakdown of superhydrophobicity.
In some cases water droplets can completely wet microstructured superhydrophobic surfaces. The dynamics of this rapid process is analyzed by ultrahigh-speed imaging. Depending on the scales of the microstructure, the wetting fronts propagate smoothly and circularly or-more interestingly-in a stepwise manner, leading to a growing square-shaped wetted area: entering a new row perpendicular to the...
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Controllable modification of nanoparticles wettability allows both understanding fine physical mechanism acting on their surfaces, and improvement of key properties in a number of nanotechnology applications. The modification of nanoparticles generating superhydrophobic state arouses especially a strong interest, since various physical phenomena, such as such as sticking, agglomeration, frictio...
متن کاملBiomimetic graphene surfaces with superhydrophobicity and iridescence.
Triggered by the fantastic functions and bright appearance of biological systems in nature, enormous efforts have been devoted to biomimetic fabrication. For instance, butterfly wings and red rose petals have attracted increasing attention due to their excellent water repellency and splendid structural color. Consequently, colorful superhydrophobic surfaces have become a hot topic with signific...
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ژورنال
عنوان ژورنال: Physics
سال: 2016
ISSN: 1943-2879
DOI: 10.1103/physics.9.23