Physico-Chemical nanomaterials science

Surface properties of superhydrophobic layers deposited on the glass supports activated by cold plasma
Chodkowski M.1, Terpiłowski K.1, Goncharuk O.V.2
1 Department of Interfacial Phenomena, Maria Curie-Sklodowska University in Lublin, Plac Marii Curie-Skłodowskiej 3, 20-031 Lublin, Poland.
E-mail: michal.chodkowski@poczta.umcs.lublin.pl
2 Chuiko Institute of Surface Chemistry NASU, 17 General Naumov Str., Kyiv 03164, Ukraine.

Superhydrophobic surfaces are the surfaces on which the water contact angle is greater than 150° and the contact angle hysteresis is usually only a few degrees [1]. Water droplets roll from the surface sloped at a very small angle, carrying impurities present on it because it is difficult to be wetted by water.
The aim of the research is to characterize the doped hydrophobic coatings deposited on the glass supports modified with argon and air plasma. The coatings on the glass surface were obtained by dip coating in the sol-gel solution based on Si(OC2H5)4 (Aldrich, 98%).

Fig. 1. SEM image of one of the obtained surfaces.

Measurements of the water contact angle using the sessile drop technique and the tilting plate method were made in order to determine the surface properties of the obtained layers. Optical profilometers and SEM images of the surfaces were also made to characterize their structures.

1.	Wang S., Jiang L. Definition of superhydrophobic states // Advanced Materials.-2007.-19, N 21.P.3423-2424.