화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.50, No.4, 639-645, August, 2012
Export Citation
Aminopropyl Triethoxysilane과 아크릴 단량체를 이용한 Silylated Acrylic Polyurethane Dispersion의 제조
Preparation of Silylated Acrylic Polyurethane Dispersion Using Aminopropyl Triethoxysilane and Acrylate Monomers
김병석, 윤동구, 유병원1, 이명구2, 변태강3, 송기창†
  • 건양대학교 화공생명학과, 320-711 충남 논산시 내동 26
  • 1한진화학주식회사 기술연구소, 437-801 경기도 의왕시 고천동 333
  • 2케이엘텍, 경기도 화성시 봉담읍 유리 68
  • 3건양대학교 식품생명공학과, 320-711 충남 논산시 내동 26
Byung Suk Kim, Dong Gu Yun, Byung Won Yoo1, Myung Goo Lee2, Tae Gang Byun3, 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
  • 2K.L.Tech Co., LTD, 68, Yu-ri, Bongdam-eup, Hwaseong-si, Gyeonggi 445-872, Korea
  • 3Department of Food Science and Biotechnology, Konyang University, 26 Nae-dong, Nonsan-si, Chungnam 320-711, Korea
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초록
Isophorone diisocyanate, polycarbonate diol, dimethylol propionic acid를 출발물질로 하여 제조된 폴리우레탄 prepolymer의 미반응 NCO 기를 실란커플링제인 aminopropyl trietoxysilane (APS)로 capping시켜 수분산 폴리우레탄 (waterborne polyurethane dispersion, PUD)을 합성하였다. 그 후 이 PUD에 아크릴 단량체인 2-hydroxyethyl methacrylate 와 methyl methacrylate의 혼합물을 첨가하고 중합시켜 silylated acrylic polyurethane dispersion을 제조하였다. 동적 빛산란법에 의해 측정된 silylated acrylic polyurethane dispersion의 평균 직경은 APS 첨가량이 증가됨에 따라 39.0 nm 에서 399.8 nm로 크게 증가하였다. 또한 코팅 도막의 연필경도는 APS의 첨가량이 증가되면서 B에서 F로 향상되었다.
Waterborne polyurethane dispersion (PUD) was synthesized by capping the NCO groups of polyurethane prepolymers, prepared from isophorone diisocyanate, polycarbonate diol and dimethylol propionic acid, with aminopropyl triethoxysilane (APS). Subsequently, silylated acrylic polyurethane dispersion was synthesized by reacting the PUD with the mixture of acrylate monomers, 2-hydroxyethyl methacrylate and methyl methacrylate. The average particle size of silylated acrylic polyurethane dispersion, measured by the dynamic light scattering method, was increased from 39.0 nm to 399.8 nm by increasing the addition amounts of APS. Also, the pencil hardness of coating films of silylated acrylic polyurethane dispersion was enhanced from B grade to F grade with increasing APS content.
Keywords:Pencil Hardness;2-Hydroxyethyl Methacrylate;Methyl Methacrylate;Aminopropyl Triethoxysilane;Silylated Acrylic Polyurethane Dispersion;Coating Films
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