The modification effect of gamma-ray grafting of TiO2 on PET film

Commercial nanofiltration polyethylene terephthalate (PET) thin-film composite membranes were treated by low-pressure gamma-ray plasma, and the effects of the plasma treatment were investigated in terms of the membrane hydrophilicity, thickness and deposition rate. Experimental results indicated that the membrane surface hydrophilicity was increased by the plasma treatment and changes in the hydrophilicity, as well as membrane performance including yield strength varied with the original membrane characteristics (e.g., roughness and hydrophilicity).