Journal
SURFACE & COATINGS TECHNOLOGY
Volume 363, Issue -, Pages 362-368Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2019.02.035
Keywords
Superhydrophobic surface; Anti-icing; Frosting; Self-cleaning
Funding
- National Natural Science Foundation of China [51563018]
- Qinglan Project of Jiangsu Province
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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 degrees C were detailedly recorded. At -8 degrees C and -4 degrees C, the water droplets rapidly rolled away from the cold superhydrophobic surface. At -2 degrees C, a delay in the ice accretion and a decrease in the ice volume on the superhydrophobic surface were achieved. At -6 degrees 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.
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