Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Preparation and Antimicrobial Properties of Nylon 6/Nano-TiO2 Nanohybrids

나일론 6/나노-TiO2 유·무기 하이브리드의 제조 및 항균특성 연구

  • Lee, Duk Hyeong (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Jo, Seong Min (Department of Materials Design Engineering, Kumoh National Institute of Technology) ;
  • Min, Byung Gil (Department of Materials Design Engineering, Kumoh National Institute of Technology)
  • 이덕형 (금오공과대학교 소재디자인공학과) ;
  • 조성민 (금오공과대학교 소재디자인공학과) ;
  • 민병길 (금오공과대학교 소재디자인공학과)
  • Received : 2014.07.02
  • Accepted : 2014.08.07
  • Published : 2014.08.31
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Abstract

Nanohybrids of nylon 6 and nano-titania ($TiO_2$) were prepared by melt compounding with a twin-screw extruder to investigate antibacterial activity. It was confirmed by field emission scanning electron microscopy (FESEM), energy dispersive spectrometry (EDS), and X-ray diffraction (XRD) that nano-$TiO_2$ was successfully dispersed in the nylon 6 matrix at the level of individual particles. After immersion in an aqueous solution of $AgNO_3$ at 100 ppm Ag ion concentration, silver was introduced to the nanohybrids through photocatalytic reduction by nano-$TiO_2$ under UV (254 nm) irradiation. With increasing nano-$TiO_2$ content, the nanohybrids with silver photodeposited on the nano-$TiO_2$. The nylon $6/TiO_2$-Ag nanohybrids exhibited strong antimicrobial activity against Klebsiella pneumoniae and Staphylococcus aureus in measurements with the shaking flask method.

Keywords

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