화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.28, No.3, 253-262, May, 2004
Export Citation
폴리(비닐 알코올)/키토산 블렌드 필름의 제조 및 특성
Preparation and Properties of Poly(vinyl alcohol)/Chitosan Blend Films
정민기, 김대선, 최용혁, 손태원†, 권오경1, 임학상2
  • 영남대학교 섬유패션학부
  • 1(주)청우섬유 기술연구소
  • 2세명대학교 환경안전시스템공학부
Min Gi Jeong, Dae Sun Kim, Yong Hyeok Choi, Tae Won Son†, Oh Kyung Kwon1, and Hak Sang Lim2
  • School of Textiles, Yeungnam University, 214-1 Dae-dong, Gyeongsan 712-749, Korea
  • 1Research Institute, Chungwoo Textile Corporation, 45-176 E-Hyun Dong, Seogu, Daegu 703-119, Korea
  • 2Department of Environmental Engineering, Semyung University, Jecheon, Chungbuk 390-711, Korea
E-mail:
초록
독성이 없고 생분해성과 생체적합성을 가지는 폴리(비닐 알코올)/키토산 블렌드 필름들은 용액상태로 캐스팅하여 제조하였다. 블렌드 필름들의 물리화학적 특성들의 변화는 여러 가지의 분석방법을 통해 조사하였다. 항균특성의 고찰에서 키토산이 10 wt% 이상 함유된 모든 블렌드 필름의 정균율은 99.9%로 우수하게 나타났다. 수분율은 키토산의 함량이 증가함에 따라 증가하나 팽윤도는 감소하였다. 키토산 함량이 15 wt%내에서는 블렌드 필름의 용융온도와 결정화온도가 키토산의 함량에 따라 증가하였다. 또한, 키토산이 10, 15 wt% 함유된 블렌드 필름들은 용융온도가 각각 229와 228 ℃로 순수 PVA보다 높은 값을 나타내었다. 그러나 키토산 함량이 20 wt%이상일 경우 용융온도는 감소하였다. 블렌드 필름의 역학적 특성들은 습윤상태 및 건조상태 모두 키토산 함량이 증가함에 따라 증가한다. 키토산 함량이 15 wt%내에서 높은 인장강도를 나타낸다.
Poly(vinyl alcohol)(PVA)/chitosan blend films with non-toxicity, biodegradability, and biocompatibility were prepared by solution casting. Variation of the physicochemical properties of the blend films was investigated through to several analysis methods. Examination of antibacterial properties revealed that bacterio-static ratios of all blend samples containing chitosan more than 10 wt% were greater than 99.9 %. Moisture regain was increased with increasing chitosan content but the degree of swelling was decreased. Up to chitosan content 15 wt%, the melting and crystallization temperature of blend films was increased with chitosan content. The blends containing chitosan content 10 and 15 wt% gave melting temperature 229 and 228 ℃, respectively. However, the melting temperature was decreased if chitosan content exceeded 20 wt%. The mechanical properties of the blend films were increased with increasing chitosan content in both dry and wet states. The blend film including 15 wt% chitosan exhibited unusually high tensile strength.
Keywords:PVA;Chitosan;Blend;Thermal behavior;Mechanical properties
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