In the modern world, polymers are used in almost all areas. Modification of polymer surfaces is an urgent task. Increasing adhesion and wettability is one of the important parameters. There are many different methods for increasing adhesion and wettability. The electrolytic plasma method is one of them. After processing the surface of the polymer by this method, the wettability of the surface of modified polymers with water was studied by measuring the size of a drop of technical water on the surface of the polymer. As a result of experimental studies, the modification of polyethylene terephthalate decreased the wetting angle by 11-24%.

The paper shows some results of the definite current-voltage characteristic (CVC) of interaction of electric discharge with a jet electrolytic cathode and a steady anode at different jet lengths (lc), jet diameter (dc), electrolyte flow rate (G) for various electrolyte concentrations.