Available online at www.sciencedirect.com ScienceDirect Materials Today: Proceedings 20 (2020) 335–341 www.materialstoday.com/proceedings 2214-7853 © 2018 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of 11th International Conference on Advanced Nano Materials. ANM 2018 Obtaining hydrophobic surfaces in atmospheric pressure plasma Sagi Orazbayev 1,2 *, Maratbek Gabdullin 2 , Tlekkabul Ramazanov 1,2 , Zhunisbekov Askar 1 , Zhumadilov Rakhymzhan 2 a Scientific and Research Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan b National Nanotechnology Laboratory of the Open Type, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan Abstract This paper presents the results of the study and analysis of the surface of hydrophobic films deposited by a plasma jet of atmospheric pressure. The surface roughness was obtained by using nanoparticles synthesized in a plasma jet of atmospheric pressure in mixtures of argon and methane gas. The dependence of the contact angle on the discharge power and the time of sample surface treatment was determined. SEM and optical images of hydrophobic samples were also obtained. © 2018 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of 11th International Conference on Advanced Nano Materials. Keywords: atmospheric pressure plasma jet, surface treatment, superhydrophobic surface, nanoparticles 1. Introduction Superhydrophobic coatings are designed to cover the surface of an object to create water repellent surfaces. In particular, superhydrophobic surfaces attract much attention as a subject of research due to their well-known properties such as self-cleaning [1], anti-icing protection [2,3], resistance to high humidity [4,5], corrosion resistance [6,7], use in "green" energy as biofuel [8], antifriction properties [9,10]. The superhydrophobic surface repels water so much that a spherical droplet easily rolls over the surface. It is generally characterized by a high water contact angle (>150°) and a low tilt angle or hysteresis with a low contact angle (<10°) [11]. At present, many methods have been developed, including chemical, physical and combined methods, to create superhydrophobic surfaces in an environmentally safe and simple way [12-14]. Surface modification methods, such as phase separation method [15], electrochemical deposition [16], sputtering method [17-21], emulsion method [22], * Corresponding author. Tel.: +7 727 377 34 48; fax: +7 727 377 34 48. E-mail address: sagi.orazbayev@gmail.com