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졸-겔법에 의한 PVA/Silica 하이브리드 필름의 제조 및 특성 KCI 등재

Properties and Preparation of PVA/Silica Hybrid Films by Sol-Gel Method

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  • URLhttps://db.koreascholar.com/Article/Detail/257261
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한국응용과학기술학회지 (The Korean Society of Applied Science and Technology)
한국응용과학기술학회(구 한국유화학회) (The Korean Society of Applied Science and Technology (KSAST))
초록

Transparent films were prepared using the sol-gel process by mixing TEOS with PVA solution that was solved in EtOH and distilled water homogeneously. HCl, CH3COOH and NH4OH were used as catalysts of the sol-gel process, and for improving the flexibility of films glycerol was used as plasticizer. In case of each catalyst, transparency and tensile strength were increased, and glass transition temperature (Tg) was shifted to higher temperature with increasing TEOS ratio. Also, in case of adding the plasticizer, the flexibility of films was increased. On the contrary, transparency, thermal stability and tensile strength were decreased with increasing HCl and NH4OH ratio. Also, the range of being made of film type was expanded when CH3COOH was used than HCl and NH4OH.

저자
  • 김태형 | Kim, Tae-Hyoung
  • 이진화 | Lee, Jin-Hwa
  • 이동규 | Lee, Dong-Kyu