Textile Coloration and Finishing (한국염색가공학회지)

The Korean Society of Dyers and Finishers (한국염색가공학회)
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Photo-oxidation and Dyeability of Poly Ketone by UV/O3 Irradiation

자외선/오존 조사에 의한 Poly Ketone의 광산화와 염색성

  • 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)
  • 김민수 (금오공과대학교 소재디자인공학과) ;
  • 장용준 (금오공과대학교 소재디자인공학과) ;
  • 장진호 (금오공과대학교 소재디자인공학과)
  • Received : 2013.02.19
  • Accepted : 2013.03.04
  • Published : 2013.03.27
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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

Acknowledgement

Supported by : 한국연구재단

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