한국염색가공학회지 (Textile Coloration and Finishing)

  • 제20권6호
  • /
  • Pages.1-7
  • /
  • 2008
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  • 1229-0033(pISSN)
  • /
  • 2234-036X(eISSN)
한국염색가공학회 (The Korean Society of Dyers and Finishers)
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TiO2 나노입자를 함유한 PLA 필름의 탈취성과 항균성

The Deodorization and Antibacterial Activities of PLA Films Embedded with TiO2 Nanoparticles

  • 구광회 (금오공과대학교 나노바이오텍스타일공학과) ;
  • 장진호 (금오공과대학교 나노바이오텍스타일공학과)
  • Koo, Gwang-Hoe (Dept. of Nano-Bio Textile engineering, Kumoh National Institute of Technology) ;
  • Jang, Jin-Ho (Dept. of Nano-Bio Textile engineering, Kumoh National Institute of Technology)
  • 발행 : 2008.12.27
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초록

The effects of $TiO_2$ contents and UV irradiation treatment on the surface properties of PLA films embedded with $TiO_2$ nanoparticle were investigated. Whereas UV irradiation decreased reflectance of the treated PLA films proportionally with increasing UV energy, the reflectance of PLA/$TiO_2$ films increased with increasing UV energy. The UV irradiation treatment caused PLA/$TiO_2$ blend films more polar as indicated in the generation of new carbonyl group and decrease in zeta potentials, which was more pronounced with the introduction of $TiO_2$. Upon UV irradiation, $TiO_2$ particles appeared on the film surface as observed in SEM images. The PLA/$TiO_2$ blend films showed photocatalytic properties such as photobleaching of methylene blue, deodorization of ammonia and antimicrobial activity in comparison with pure PLA films.

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참고문헌

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