CORONA TREATMENT ON POLYOLEFIN FILMS

This paper presents a review of recent studies on corona effects of po lyolefin films. It focuses on the mechanism of corona treatment of pol yolefin films by discussing the chemical and physical changes of this process and the self-adhesion mechanism. Corona discharge of polymeric films introduces polar groups into the surfaces resulting in increase s in the surface energy. This improves substrate wetting and adhesion characteristics. The main chemical mechanism of corona treatment is ox idation. Corona treatment can also crosslink surface regions and incre ase film cohesive strength.