화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.37, No.2, 225-231, March, 2013
Export Citation
다양한 점토를 이용한 폴리(비닐 알코올) 나노 복합체 필름의 특성 연구
Characterization of Poly(vinyl alcohol) Nanocomposite Films with Various Clays
함미란1, 2, 김정철2, 장진해1, †
  • 1금오공과대학교 에너지융합소재 공학부
  • 2한국생산기술연구원
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
순수한 점토 5 wt%를 포함하는 poly(vinyl alcohol)(PVA) 나노 복합체 필름을 수용액상에서 합성하였다. 합성된 PVA 복합체 필름에는 구조적으로 각각 다른 사포나이트(SPT), 몬모릴로나이트(MMT), 헥토라이트(SWN), 수용성 벤토나이트(PGV) 및 마이카(Mica) 등의 점토를 사용하였다. 이처럼 여러 가지 순수한 점토가 포함된 PVA 복합체 필름에 대해 열적-광학적 성질 및 모폴로지를 평가하였으며, 전자 현미경을 통해 관찰된 PVA 복합체 필름의 나노 구조에서는 점토가 매트릭스에 잘 분산된 부분도 있었지만, 일부에서는 뭉친 부분도 발견되었다. 점토를 사용한 PVA 복합체 필름의 경우에 열적 성질이나 가스 차단성을 증가시키는 데에는 매우 효과적이었지만, 이와는 반대로 광학 투명성에서는 그렇지 못하였다.
Poly(vinyl alcohol) (PVA) hybrid films containing 5 wt% pristine clay mineral were synthesized in the water solution. The various PVA hybrid films were synthesized from structurally different pristine clays: saponite (SPT), montmorillonite (MMT), hectorite (SWN), hydrophilic bentonite (PGV), and mica (Mica). The thermo-optical properties and morphologies of the PVA hybrid films were evaluated with various pristine clays. The nanostructure of the hybrid films was observed using transmission electron microscopy, which showed that the clay layers were well dispersed into the matrix polymer, although some clusters or agglomerated particles were also detected. The addition of pristine clay was more effective with regard to improving the thermal properties and gas barrier characteristics, whereas the optical transparency of the PVA hybrid films deteriorated with pristine clay.
Keywords:poly(vinyl alcohol);clay;nanocomposite;film.
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