Fabrication and Study of Micro- and Nanostructured Superhydrophobic and Anti-Icing Surfaces
| Autor: | V. Ya. Prinz, I. A. Korneev, V. A. Seleznev |
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| Rok vydání: | 2017 |
| Předmět: |
Fabrication
Materials science Nanoporous Capillary action General Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Nanopore chemistry.chemical_compound chemistry law General Materials Science Synthetic oil Wetting Composite material Crystallization 0210 nano-technology Layer (electronics) |
| Zdroj: | Nanotechnologies in Russia. 12:485-494 |
| ISSN: | 1995-0799 1995-0780 |
| Popis: | Different micro-and nanostructured superhydrophobic and anti-icing surfaces have been fabricated and studied. Methods for forming hierarchical structures on Teflon surfaces, ensuring a wetting angle of 163°, have been developed. It is shown that the contact wetting angle of the fabricated nanoporous anodic alumina surfaces coated with a fluoroorganic molecular layer attains 173°. Anti-icing slippery alumina surfaces containing an array of nanopores filled with a Krytox100 fluorinated synthetic oil, which does not freeze down to a temperature of –70°C, have been designed and fabricated. The thin oil layer on such surfaces is confined inside pores by capillary forces and ensures the slipping of water droplets and the absence of ice crystallization centers on such surfaces. In contrast to superhydrophobic surfaces, water droplets on these slippery surfaces do not freeze at temperatures reaching at least –10°C. |
| Databáze: | OpenAIRE |
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