한국섬유공학회지 (Textile Science and Engineering)

  • 제47권2호
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  • Pages.92-101
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  • 2010
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
권호 표지

키토산/PVA 블렌드 필름의 구조 및 특성

Fine Structure and Physical Properties of Chitosan/PVA Blend Films

  • 이재호 (부산대학교 바이오소재공학과) ;
  • 노창환 (부산대학교 바이오소재공학과) ;
  • 최해욱 (부산대학교 바이오소재공학과) ;
  • 정영진 (부산대학교 바이오소재공학과) ;
  • 황대연 (부산대학교 바이오소재공학과) ;
  • 이언필 (부산대학교 바이오소재공학과)
  • Lee, Jae-Ho (Department of Biomaterial Engineering, Pusan National University) ;
  • Noh, Chang-Hwan (Department of Biomaterial Engineering, Pusan National University) ;
  • Choi, Hae-Wook (Department of Biomaterial Engineering, Pusan National University) ;
  • Jung, Young-Jin (Department of Biomaterial Engineering, Pusan National University) ;
  • Hwang, Dae-Youn (Department of Biomaterial Engineering, Pusan National University) ;
  • Lee, Eon-Pil (Department of Biomaterial Engineering, Pusan National University)
  • 투고 : 2010.02.02
  • 심사 : 2010.04.13
  • 발행 : 2010.04.30
⟨ 이전 논문 다음 논문 ⟩

초록

Chitosan/poly(vinyl alcohol)(PVA) blend films with non-toxicity, biodegradability, and biocompatibility were prepared by solvent blending method. The weight composition ratios of chitosan/PVA blend films were 100/0 (chitosan homopolymer), 75/25, 50/50, 25/75, and 0/100 (PVA homopolymer). Physicochemical properties of the prepared blend films according to various blend ratios were investigated by using universal testing machine, thermogravimeter (TGA), differential scanning calorimeter (DSC), wide angle X-ray diffractometer (WAXD), Fourier transform infrared (FTIR) spectrometer, and scanning electron microscope (SEM). The tensile stress and tensile strain of chitosan/PVA blend films increased as the amount of PVA increased. The thermal stability increased with increasing chitosan content in the chitosan/PVA blend films. The DSC curve of the PVA film shows an endotherm peak around $230^{\circ}C$, and the peak became smaller and broader with increasing chitosan content. The diffraction intensities of chitosan observed at 2 theta of $10^{\circ}$ decreased with increasing the content of PVA in the blend films, but the crystal intensities of the blend films increased as the amount of PVA increased. In the infrared spectra, the absorption band for -OH and -NH stretching vibrations in chitosan broadened and shifted obviously to lower wavenumber with the increase of PVA. Water-retention values of the chitosan/PVA blend films increased as the amount of PVA is increased owing to the hydrophilic nature of PVA. From the structural analyses, it is believed that chitosan and PVA are miscible due to the strong intermolecular hydrogen bonding.

키워드

과제정보

연구 과제 주관 기관 : 부산대학교

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