화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.37, No.5, 579-586, September, 2013
Export Citation
폴리(비닐 알코올)/사포나이트 나노 복합체 필름 및 연신된 필름의 열적 성질, 모폴로지, 광학 투명성, 및 기체 투과성
Thermal Property, Morphology, Optical Transparency, and Gas Permeability of PVA/SPT Nanocomposite Films and Equi-biaxial Stretching Films
함미란1, 2, 김정철2, 장진해1, †
  • 1금오공과대학교 에너지융합소재 공학부
  • 2한국생산기술연구원 광에너지 융합연구그룹
Miran Ham1, 2, Jeong-Cheol Kim2, and Jin-Hae Chang1, †
  • 1School of Energy and Integrated Materials Engineering, Kumoh National Institute of Technology, Gumi 730-701, Korea
  • 2Energy and Applied Optics Team, Korea Institute of Industrial Technology, Gwangju 500-480, Korea
E-mail:
초록
용액 삽입법을 이용하여 다양한 함량의 사포나이트(SPT) 점토를 포함한 폴리(비닐 알코올)(poly(vinyl alcohol), PVA) 나노 복합체 필름을 제조하였다. SPT를 0에서 10 wt%까지 첨가한 PVA 나노 복합체 필름들의 열적 특성, 모폴로지, 광학 투명성 및 기체 투과성에 대해 조사하였다. 특히 5 wt% SPT 포함한 PVA 복합체 필름이 매우 우수한 열적 특성과 기체 차단성을 나타내었다. 5 wt% SPT 포함된 복합체 필름을 연신율에 따라 150에서 250%까지 이축 연신하였고, 이축 연신율에 따른 점토 분산성, 광학적 특성 및 기체 투과성에 대한 조사를 하였다. 다양한 비로 이축 연신한 PVA 나노 복합체 필름은 우수한 광학 투명성과 산소 차단성을 보였다.
Poly(vinyl alcohol)(PVA) nanocomposite films containing various saponite (SPT) clay contents were synthesized using a solution intercalation method. The thermal property, morphology, optical transparency, and gas permeability of the PVA nanocomposite films with various SPT contents in the range of 0 to 10 wt% were examined. PVA nanocomposite film containing 5 wt% SPT showed excellent thermal and gas barrier property. The hybrid films containing 5 wt% SPT were equibiaxially stretched with stretching ratios ranging from 150 to 250%. The clay dispersion, optical transparency, and gas permeability were also examined as a function of equibiaxial stretching ratio. The PVA nanocomposite films with various equibiaxial stretching ratios showed excellent optical transparency and barrier to oxygen permeability.
Keywords:poly(vinyl alcohol);saponite;nanocomposite films;equibiaxial stretching.
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