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Received January 4, 2012
Accepted February 7, 2012
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Aniline Terminated Waterborne Polyurethane과 PEDOT/PSS의 블렌딩에 의한 대전방지 코팅용액의 제조
Preparation of Antistatic Coating Solutions by Blending Aniline Terminated Waterborne Polyurethane with PEDOT/PSS
건양대학교 화공생명학과, 320-711 충남 논산시 내동 26 1건양대학교 식품생명공학과, 320-711 충남 논산시 내동 26
Department of Chemical and Biochemical Engineering, Konyang University, 26 Nae-dong, Nonsan, Chungnam 320-711, Korea 1Department of Food and Biotechnology, Konyang University, 26 Nae-dong, Nonsan, Chungnam 320-711, Korea
Korean Chemical Engineering Research, August 2012, 50(4), 614-620(7), NONE Epub 25 July 2012
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Abstract
Poly (carbonate diol), isophrone diisocyanate와 dimethylol propionic acid로부터 제조된 폴리우레탄 prepolymer의 말단 NCO 기를 aniline으로 capping시켜 aniline terminated waterborne polyurethane dispersion (ATPUD)을 합성하였다. 이 ATPUD와 순수한 waterborne polyurethane dispersion (PUD)을 각각 전도성 고분자인 polystyrene sulfonate로 도핑된 poly (3,4-ethylenedioxythiophene)[PEDOT/PSS]과 블렌딩시켜 대전방지용 코팅 용액을 제조한 후, 이것을_x000D_
polycarbonate 기재 위에 도포하여 코팅 도막을 형성하였다. PEDOT/PSS가 2.5 g 이하로 적당량 첨가된 경우에는 ATPUD로 제조된 코팅 도막의 표면저항 값은 1.0×1011~2.5×108 Ω/cm2로 순수한 PUD로부터 제조된 코팅 도막의 5.0×1011~6.3×109 Ω/cm2 보다 우수한 전기전도도를 나타내었다. 그러나 PEDOT/PSS가 3.0 g으로 과량 첨가된 경우에는 ATPUD로부터 제조된 코팅 도막과 PUD로부터 제조된 코팅 도막은 비슷한 전기전도도를 나타내었다.
Polyurethane prepolymers were prepared from poly (carbonate diol), isophrone diisocyanate and dimethylol propionic acid. Then, aniline terminated waterborne polyurethane dispersion (ATPUD) was synthesized by capping the NCO group of the prepolymer with aniline monomer. Subsequently, ATPUD and waterborne polyurethane dispersion (PUD), respectively, were blended with conducting polymer, poly (3,4-ethylenedioxythiophene)/polystyrene sulfonate_x000D_
[PEDOT/PSS], to yield antistatic coating solutions, and the mixture was coated on the polycarbonate substrates. At adequate addition amounts of PEDOT/PSS less than or equal to 2.5 g, the surface resistances (1.0×1011~2.5×108 Ω/cm2) of coating films from ATPUD showed better electronic conductivities than those (5.0×1011~6.3×109 Ω/cm2) from PUD. However, at excess amount of PEDOT/PSS of 3.0 g, the surface resistance from ATPUD showed similar electronic conductivity with that from PUD.
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References
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Hwang YH, Sung KC, Park HS, J. Korean Oil Chemists' Soc., 19(1), 1 (2002)
Ha JW, Whang KH, J. Korean Ind. Eng. Chem., 12(1), 27 (2001)
Lee JK, Choi HO, Kim EB, Kim SY, Ju CS, Korean Chem. Eng. Res., 48(5), 638 (2010)
Kim KY, Seo KI, Chung IJ, Theor. Appl. Chem. Eng., 4(2), 3833 (1998)
Lee WJ, Kim YJ, J. Korean Ind. Eng. Chem., 10(2), 287 (1999)
Park CM, Kim TY, Kim WJ, Kim YS, Suh KS, Polym.(Korea), 29(4), 363 (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, Lee GB, Yoo BW, Lee MG, Song KC, Ibid., 48(4), 434 (2010)
Shin YT, Hong MG, Choi JJ, Lee WK, Yoo BW, Lee MG, Song KC, Ibid., 49(4), 411 (2011)
Shin YT, Hong MG, Choi JJ, Lee WK, Lee GB, Yoo BW, Lee MG, Song KC, Ibid., 48(4), 428 (2010)
Shin YT, Hong MG, Kim BS, Lee WK, Yoo BW, Lee MG, Song KC, ibid., 49(5), 548 (2011)
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)
