Novel Preparation of Epoxy/Silica Nanocomposite Using Si-N Precursor

Si-N 전구체를 이용한 에폭시/실리카 나노복합재료의 제조

  • Kim Lee Ju (Department of Materials Science and Engineering, Korea University) ;
  • Yoon Ho Gyu (Department of Materials Science and Engineering, Korea University) ;
  • Lee Sang-Soo (Polymer Hybrids Research Center, Korea Institute of Science and Technology) ;
  • Kim Junkyung (Polymer Hybrids Research Center, Korea Institute of Science and Technology)
  • 김이주 (고려대학교 재료공학과) ;
  • 윤호규 (고려대학교 재료공학과) ;
  • 이상수 (한국과학기술연구원 고분자 하이브리드연구센터) ;
  • 김준경 (한국과학기술연구원 고분자 하이브리드연구센터)
  • Published : 2004.09.01

Abstract

In order to overcome drawbacks in the conventional preparation of epoxy/silica nanocomposites, such as formation of micro voids and dimensional instability caused by evolution of volatile by-products during curing reaction, a novel preparation method using Si-N precursor has been proposed. When prepared through in-situ reaction of epoxy curing reaction with sol-gel reaction of Si-N precursor, methyltripiperidinylsilane (MTPS) which does not produce by-products during reaction, epoxy/silica nanocomposites of extremely even dispersion of inorganic phase could be successfully prepared, resulting in high enhancement of mechanical and thermal properties as well as outstanding transparency.

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