Title :
Icing performances of super-hydrophobic PDMS/Nano-silica hybrid coating on insulators
Author :
Zhao, Yushun ; Li, Jian ; Hu, Jianlin ; Grzybowski, Stanislaw
Author_Institution :
State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing, China
Abstract :
This paper presented a novel polydimethylsiloxane /nano-silica (PDMS/nano-silica) hybrid super-hydrophobic coating for anti-icing on insulators. Average water contact angle on the super-hydrophobic PDMS/nano-silica hybrid coating reached 161°. The super-hydrophobic PDMS/nano-silica hybrid coating had a rough surface with micro/nanometer dual-size structure. Icing experiment was carried out to investigate the anti-icing properties of the super-hydrophobic coating on insulator strings. AC icing flashover voltages of the two types of insulator strings were investigated. Results showed that the super-hydrophobic PDMS/nano-silica hybrid super-hydrophobic coating excellently restrained the icing on insulator strings. The AC flashover voltage of the ice coated insulator string with the super-hydrophobic PDMS/nano-silica hybrid coating was 100 kV which was higher than that of the ice coated insulator string with RTV silicone rubber coating.
Keywords :
flashover; hydrophobicity; insulator testing; rough surfaces; silicone rubber insulators; AC icing flashover voltages; anti-icing; insulator strings; nano-silica hybrid coating on insulators; rough surface; silicone rubber coating; superhydrophobic PDMS; Coatings; Flashover; Ice; Rubber; Silicon compounds; Surface treatment;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2010 International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-8283-2
DOI :
10.1109/ICHVE.2010.5640721
