Study On Founding An Atmospheric Pressure Glow Discharge Reactor And Induce Grafting Reaction On PE Fiber

An atmospheric-pressure glow discharge plasma reactor is brought forward and developed in this thesis. The glow discharge can be driven of 0-40kv supply. The electrodes are two parallel metal plates. Many kinds of working gasses such as He/ C7F16,He,He/acetone can be used. The measurement provide sufficient evidence to demonstrate that is a really stable and homogeneous glow discharge at atmospheric pressure.In this paper, the surface of PE fiber was modified by plasma-induced graft reaction. Treating effect, grafting principle of hydrophilic monomer and hydrophobic monomer grafting induced by plasma onto the PE fiber was studied.Through the related measurement of surface contact angle, grafting rate and surface tension of PE fiber, the involved treatment parameters were studied systematically including plasma power, treating time, monomer types 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 atmospheric-pressure glow discharge plasma.