INFLUENCE OF SUPERHYDROPHOBIC PROPERTIES ON DEICING

Nowadays the creation of anti-icing, or deicing, surfaces is one of the most important problems, as such surfaces are widely used in aeronautics, wind turbines, and telecommunication antennas. In this paper, we focus mainly on
reducing the ice adhesion forces and easy ice removal, once ice has formed. Removal of a liquid from a surface can be provided by modifi cation of the surface wettability by means of applying superhydrophobic coatings. Such coatings are water-resistant, i.e., are characterized by low water adhesion forces. To study the impact of superhydrophobic coatings, tests were performed on the surface of a wing in a wind tunnel. By spraying Tefl on and polyphenylene sulfi de (PPS) on the wing, we obtained a superhydrophobic fi lm. This fi lm has a structure that provides superhydrophobic
properties, so that the wetting angle is above 140o . A comparison of the resulting surface with a clean Tefl on one shows that adhesion of the Tefl on + PPS mixture to an aluminum surface is fi ve times higher. We also investigate the degree of ice formation on the surfaces of simple and superhydrophobic aircraft wings at a temperature of –18o
C. It was shown that ice was formed on a simple wing within 40 s and on a superhydrophobic wing within 25 s. When the
simple wing with a mass of 23 g was inserted into the wind tunnel, its mass reached 50 g, and for a superhydrophobic
wing with a mass of 26 g the latter reached 42 g. The sample of the airfoil wing we prepared has a low adhesion,
which helps in easy ice removal
Nowadays the creation of anti-icing, or deicing, surfaces is one of the most important problems, as such surfaces are widely used in aeronautics, wind turbines, and telecommunication antennas. In this paper, we focus mainly on
reducing the ice adhesion forces and easy ice removal, once ice has formed. Removal of a liquid from a surface can be provided by modifi cation of the surface wettability by means of applying superhydrophobic coatings. Such coatings are water-resistant, i.e., are characterized by low water adhesion forces. To study the impact of superhydrophobic coatings, tests were performed on the surface of a wing in a wind tunnel. By spraying Tefl on and polyphenylene sulfi de (PPS) on the wing, we obtained a superhydrophobic fi lm. This fi lm has a structure that provides superhydrophobic
properties, so that the wetting angle is above 140o . A comparison of the resulting surface with a clean Tefl on one shows that adhesion of the Tefl on + PPS mixture to an aluminum surface is fi ve times higher. We also investigate the degree of ice formation on the surfaces of simple and superhydrophobic aircraft wings at a temperature of –18o
C. It was shown that ice was formed on a simple wing within 40 s and on a superhydrophobic wing within 25 s. When the
simple wing with a mass of 23 g was inserted into the wind tunnel, its mass reached 50 g, and for a superhydrophobic
wing with a mass of 26 g the latter reached 42 g. The sample of the airfoil wing we prepared has a low adhesion,
which helps in easy ice removal
Author:  M. Nazhipkyzy, Z. A. Mansurov, A. Amirfazli, A. Esbosin,a T. S. Temirgaliyeva, B. T. Lesbayev, E. T. Aliyev, and N. G. Prikhodko
Keywords:  superhydrophobic properties, deicing, wettability, airfoil
Page:  1476