The Changes in Particle Distribution Over the Polymer Surface Under the Dielectric Barrier Discharge Plasma

Abstract

Surface properties of a two-layer polymer PMF-351 film exposed to the dielectric barrier discharge (DBD) low-temperature plasma have been studied by atomic force microscopy. It is established that such treatment leads to an increase of surface adhesion. The largest adhesion forces of about 165[Formula: see text]nN were achieved after 5[Formula: see text]min of treatment at the distance of 2[Formula: see text]sm, power of 30[Formula: see text]W and nitrogen flow of 3.1[Formula: see text]L/min. SiO2 nanoparticles with diameters of 10–20[Formula: see text]nm were distributed over the treated polymer film surface from a suspension by centrifugation and they formed uniform rounded formations with the diameters of 50–100[Formula: see text]nm.