Влияние миграции добавок на свойства поверхности пленок на основе полипропилена при модификации в низкотемпературной плазме коронного разряда

Abstract

The paper considers the modification of films based on polypropylene containing technological fluorinated additives in corona discharge plasma. X-ray photoelectron spectroscopy and atomic force microscopy were used to study the elemental and chemical composition, relief, adhesive and deformation properties of the film surface before and after plasma modification. It has been established that the modification of a film in a corona discharge plasma leads to the appearance of a technological additive based on fluorine on the surface of the film. In this case, the chemical composition and structure of the film changes, local structures appear on the surface of the film containing atoms of oxygen, fluorine and carbon, which have electrical conductivity different from the electrical conductivity of the surface of the original film. Modification in plasma leads to an increase in the elastic and adhesive properties of the film surface.