Study On Principle Of Plasma-induced Graft Reaction On Organic Film

In this paper, the surface of LDPE film was modified by cold plasma-induced graft reaction. Treating effect, grafting principle of hydrophilic monomer and hydrophobic monomer grafting induced by plasma onto the LDPE film was studied.Through the related measurement of surface contact angle, grafting rate and surface tension of LDPE film, the involved treatment parameters were studied systematically including gas atmosphere, plasma power, treating time, treating pressure etc. Moreover, IR, NMR and SEM were used to characterize the surface properties of the samples such as chemical composition and morphological structure.The paper summarized the principle and mechanism of hydrophilic monomer and hydrophobic monomer grafting induced by cold plasma.