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Received April 16, 2012
Accepted May 24, 2012
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Aminopropyl Triethoxysilane과 아크릴 단량체를 이용한 Silylated Acrylic Polyurethane Dispersion의 제조
Preparation of Silylated Acrylic Polyurethane Dispersion Using Aminopropyl Triethoxysilane and Acrylate Monomers
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
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
Korean Chemical Engineering Research, August 2012, 50(4), 639-645(7), NONE Epub 25 July 2012
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Abstract
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_x000D_
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.
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References
Shin YT, Hong MG, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res., 48(4), 434 (2010)
Kim SM, Kwak NS, Yang YK, Yim BK, Park BY, Hwang TS, Polym.(Korea), 29(3), 253 (2005)
Hong MG, Shin YT, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res., 48(5), 561 (2010)
Shin YT, Hong MG, Choi JJ, Lee WK, Yoo BW, Lee MG, Song KC, ibid., 49(4), 411 (2011)
Kim BS, Hong MG, Yoo BW, Lee MG, Song KC, Ibid., in press, 50(3) (2012)
ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International, 927 (1997)
Hwang JH, Song KC, Korean Chem. Eng. Res., 49(3), 277 (2011)
Kim SM, Kwak NS, Yang YK, Yim BK, Park BY, Hwang TS, Polym.(Korea), 29(3), 253 (2005)
Hong MG, Shin YT, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Korean Chem. Eng. Res., 48(5), 561 (2010)
Shin YT, Hong MG, Choi JJ, Lee WK, Yoo BW, Lee MG, Song KC, ibid., 49(4), 411 (2011)
Kim BS, Hong MG, Yoo BW, Lee MG, Song KC, Ibid., in press, 50(3) (2012)
ASTM D 3359, “Standard Test Methods for Measuring Adhesion by Tape Test,” ASTM International, 927 (1997)
Hwang JH, Song KC, Korean Chem. Eng. Res., 49(3), 277 (2011)
