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http://dx.doi.org/10.5764/TCF.2013.25.1.25

Photo-oxidation and Dyeability of Poly Ketone by UV/O3 Irradiation  

Kim, Min-Su (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Jang, Yong-Joon (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Jang, Jinho (Department of Materials Design Engineering, Kumoh National Institute of Technology)
Publication Information
Textile Coloration and Finishing / v.25, no.1, 2013 , pp. 25-29 More about this Journal
Abstract
Poly ketone (PK) was photo-oxidized by UV/ozone irradiation and the effect of UV energy on the surface properties of the UV-irradiated PK film was investigated by the measurement of reflectance, surface roughness, contact angles, ESCA, and ATR. Reflectance, particularly at the wavelength of 380nm, decreased with increasing UV energy. And the irradiation produced nano-scale roughness on the surface uniformly. The maximum surface roughness increased from 25.3nm for the unirradiated sample to 104.9nm at the irradiation of $42.4J/cm^2$. The improvement in hydrophilicity was caused by the introduction of polar groups such as C-O and C=O bonds resulting in higher $O_{1s}/C_{1s}$. The surface energy of PK film increased from $43.3mJ/m^2$ for the unirradiated sample to $71.9mJ/m^2$ at the irradiation of $31.8J/cm^2$. The zeta potential of the UV-irradiated PK decreased with increased UV energy and the dyeability to cationic dyes increased accordingly, resulting from the photochemically introduced anionic and dipolar dyeing sites on the PK films surfaces.
Keywords
poly ketone; UV irradiation; hydrophilicity; dyeability; cationic dye;
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Times Cited By KSCI : 5  (Citation Analysis)
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