Surface Treatment and Dyeability of Poly(phenylene sulfide) Films by UV/O₃Irradiation

Abstract

Poly(phenylene sulfide)(PPS) films were photooxidized under UV/ozone irradiation. The effect of UV energy on the surface properties of the UV-irradiation PPS films were investigated by the measurement of reflectance, surface roughness, and contact angle. Reflectance decreased at the wavelength of 400nm and the surface roughness increased with increased UV energy. The improvement in hydrophilicity with increased O1s/C1s was caused by the introduction of hydrophilic SO2 bond. Surface energy increased from 46.6 to 78.3mJ/m 2 with increased UV energy up to 21.2J/cm 2. Also zeta potential decreased with increased UV energy. The increased dyeability to cationic dyes may be due to the photochemically introduced anionic and dipolar dyeing sites on the PPS films surfaces.he photochemically introduced anionic and dipolar dyeing sites on the PPS films surfaces.