Effect of low-temperature plasma barrier discharge on elemental composition and wettability of polylactic acid surface

Investigations of the elemental composition and wettability of polylactic acid obtained by electrospinning and modified by argon and oxygen low-temperature atmospheric pressure barrier discharge plasma are described. X-ray photoelectron spectroscopy analysis indicates that the destruction and oxidation processes of polymer bonds occur simultaneously after plasma modification. It was established that enhancement of carbon bonds leads to the surface carbonization. Plasma modification contributes to the polylactic acid surface energy increasing.