화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.14, No.8, 1154-1158, December, 2003
전분/펙틴/몬모릴로나이트 나노복합 필름의 특성 및 산소 투과도 연구
A Study on the Property and Oxygen Permeability of Starch/Pectin/Montmorillonite Nanocomposite
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초록
Na+-MMT로부터 제조한 생분해성 전분/펙틴/몬모릴로나이트 나노복합재료의 기계적 특성, 열적 특성, 그리고 산소 투과성을 연구하였다. XRD와 TEM의 결과로부터 고분자의 삽입으로 인하여 실리케이트 층간 간격이 증가하였으며, 또한 삽입형 전분/펙틴/몬모릴로나이트 나노복합재료임을 확인하였다. 합성된 전분/펙틴/몬모릴로나이트 나노복합재료의 경우 적은 양의 MMT로부터 기계적 특성과 열적 안정성이 우수함을 보였다. 그리고 전분/펙틴/몬모릴로나이트 나노복합재료의 산소 투과성은 고분자 매트릭스에 분산되어 있는 몬모릴로나이트에 의하여 현저히 저하됨을 보여주었다.
Mechanical property, thermal property, and oxygen permeability of biodegradable Pectin/Starch-montmorillonite nanocomposite, prepared with Na+-MMT, have been studied. X-ray diffraction and TEM experiments on polymer/silicate composite samples demonstrated that the intercalation of polymer chains leads to increase in the spacing between silicate layers. In addition, it were found that the intercalated Starch/Pectin/montmorillonite nanocomposite were prepared. It was found that the addition of only a small amount of clay was enough to improve the thermal stability and mechanical property of Starch/Pectin/montmorillonite nanocomposite. Oxygen permeability of Starch/Pectin/montmorillonite composite was generally lower than that of pectin/starch.
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