Icing behavior of water droplets impinging on cold superhydrophobic surface
| Autor: | Wen Li, Junfei Ou, Fajun Wang, Xinzuo Fang, Sheng Lei |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Vulcanization Spray coating 02 engineering and technology Surfaces and Interfaces General Chemistry Ice accretion 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Silicone rubber 01 natural sciences Superhydrophobic coating 0104 chemical sciences Surfaces Coatings and Films law.invention Silica nanoparticles chemistry.chemical_compound chemistry law Frost Materials Chemistry Composite material 0210 nano-technology Icing |
| Zdroj: | Surface and Coatings Technology. 363:362-368 |
| ISSN: | 0257-8972 |
| DOI: | 10.1016/j.surfcoat.2019.02.035 |
| Popis: | Ice and contaminants accumulate on the surface of insulators, causing severe damage to the power system. To reduce the accumulation of ice and contaminants, a superhydrophobic coating based on silica nanoparticles and room-temperature vulcanized silicone rubber was prepared via the simple spray coating method. The icing processes of the hydrophilic, hydrophobic and superhydrophobic surfaces from −4 to −16 °C were detailedly recorded. At −8 °C and −4 °C, the water droplets rapidly rolled away from the cold superhydrophobic surface. At −12 °C, a delay in the ice accretion and a decrease in the ice volume on the superhydrophobic surface were achieved. At −16 °C, the anti-icing effect was not observed. The experimental results also showed that the superhydrophobic coating has a strong ability to restrain frost growth. Hence, the superhydrophobic coating can be applied on insulators to prevent icing flashover. |
| Databáze: | OpenAIRE |
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