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Issue
Korean Chemical Engineering Research,
Vol.48, No.4, 428-433, 2010
Tetraethylorthosilicate를 사용한 수분산 폴리우레탄/실리카 Nanocomposite의 제조
Preparation of Waterborne Polyurethane/Silica Nanocomposites Using Tetraethylorthosilicate
신용탁, 홍민기, 최진주, 이원기, 이경배, 유병원, 이명구, 송기창
Isophorone diisocyanate(IPDI), poly(tetramethylene glycol)(PTMG), dimethylol propionic acid(DMPA), triethylamine (TEA), ethylenediamine(EDA), 3-aminopropyl triethoxysilane(APS)을 출발물질로 하여 수분산 폴리우레탄(Waterborne polyurethane, WPU)이 합성되었다. 이 WPU에 0~8 wt%로 첨가량이 조절된 tetraethylorthosilicate(TEOS)를 첨가한 후 Sol-Gel 반응을 진행시켜 WPU/silica nanocomposite를 제조하였다. WPU/silica nanocomposite의 평균 입경은 TEOS의 첨가량이 증가함에 따라 증가하였다. 또한 제조된 nanocomposite의 열적 안정성은 순수한 WPU보다 우수하였다.
Waterborne polyurethane(WPU) was synthesized from isophorone diisocyanate(IPDI), poly(tetramethylene glycol)(PTMG), dimethylol propionic acid(DMPA), triethylamine(TEA), ethylenediamine(EDA) and 3-aminopropyl triethoxysilane(APS) as a coupling agent. Subsequently, WPU/silica nanocomposites with different silica contents(0 to 8 wt%) were prepared by performing sol-gel reactions with tetraethylorthosilicate in the WPU matrix. The average particle size of the nanocomposite solutions increased with increasing TEOS content. Also, the prepared nanocomposites showed better thermal stability than pure WPU.
Keywords: Waterborne Polyurethane; Aminopropyl Triethoxysilane; Nanocomposites; Tetraethylorthosilicate; Sol-Gel
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[Cited By]
  1. Shin YT, Hwang JH, Hong MG, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chemical Engineering Research, 49(3), 285, 2011
  2. Shin YT, Hong MG, Choi JJ, Lee WK, Yoo BW, Lee MG, Song KC, Korean Chemical Engineering Research, 49(4), 411, 2011
  3. Shin YT, Hong MG, Kim BS, Lee WK, Yoo BW, Lee MG, Song KC, Korean Chemical Engineering Research, 49(5), 548, 2011
  4. Shin YT, Hong MG, Kim BS, Lee WK, Yoo BW, Lee MG, Song KC, Korean Chemical Engineering Research, 50(2), 191, 2012
  5. Huh WY, Yun DG, Song KC, Korean Chemical Engineering Research, 52(4), 451, 2014
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