화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.48, No.4, 428-433, August, 2010
Export Citation
Tetraethylorthosilicate를 사용한 수분산 폴리우레탄/실리카 Nanocomposite의 제조
Preparation of Waterborne Polyurethane/Silica Nanocomposites Using Tetraethylorthosilicate
신용탁, 홍민기, 최진주, 이원기1, 이경배1, 유병원1, 이명구2, 송기창†
  • 건양대학교 화공생명학과, 320-711 충남 논산시 내동 26
  • 1한진화학주식회사 기술연구소, 437-801 경기도 의왕시 고천동 333
  • 2나노스피어(주), 445-872 경기도 화성시 송산면 중송리 95-3
Yong Tak Shin, Min Gi Hong, Jin Joo Choi, Won Ki Lee1, Gyoung Bae Lee1, Byung Won Yoo1, Myung Goo Lee2, and Ki Chang Song†
  • Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan-si, Chungnam 320-711, Korea
  • 1Technical Research Institute, Hanjin Chemical Co., LTD, 333 Gocheon-dong, Uiwang-si, Gyeonggi 437-801, Korea
  • 2Nanosphere Co., LTD, 95-3 Jongsong-ri, Sonsan-myeon, Hwaseong-si, Gyeonggi 445-872, Korea
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초록
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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