화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.12, No.3, 430-437, May, 2006
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Effect of pH on Dispersion Stability of ITO Nanoparticles in Solution and Its Application forConductive PET Film
Moon-Sun Kim†, Hee-Dai Lee, and Chul Kyung Kim1
  • Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
  • 1Department of Applied Chemical Engineering, Mokwon University, Daejeon 302-729, Korea
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A study of conductive PET films obtained using wet-coating was performed. Poly(vinyl) copolymer was used as a carrier to immobilize ITO onto the PET film. The dispersion stability was best at pH 11 and worst at pH 6. The higher the dispersion stability, the higher the conductivity of the ITO film. The conductivities of the ITO film at pH 11 and 6 were 5.5×10-6 and 0.52×10-6 S/cm, respectively. The concentration of the poly(vinyl) copolymer, the coating speed, and the coating thickness were also main parameters modified to obtain higher-conductivity PET films by wet-coating. The relationship between the conductivity (Y) and the solid weight (X) is given by the following equation: Y=14.45X2-29.07X+17.63
Keywords:ITO film;pH;dispersion stability;wet coating;conductivity
  1. Kim YH, Kang YS, Jo BG, J. Ind. Eng. Chem., 10(5), 739 (2004)
  2. Kim KJ, VanderKooi J, J. Ind. Eng. Chem., 10(5), 772 (2004)
  3. Bisht H, Eun HT, Mehrtens A, Aegerter MA, Thin Solid Films, 351(1-2), 109 (1999)
  4. Fukushi Y, Kominami H, Nakanishi Y, Hatanaka Y, Appl. Surf. Sci., 244, 537 (2005)
  5. Boehme M, Charton C, Surf. Coat. Technol., 200, 932 (2005)
  6. Song WC, J. KIEEME, 17, 1277 (2004)
  7. Lintymer J, Gavoille J, Martin N, Takadoum J, Surf. Coat. Technol., 174, 316 (2003)
  8. Meng LJ, Placido F, Surf. Coat. Technol., 166, 44 (2003)
  9. Lii DF, Huang JL, Jen IJ, Lin SS, Sajgalik P, Surf. Coat. Technol., 192, 106 (2005)
  10. Sun JK, Velamakanni BV, Gerberich WW, Francis LF, J. Colloid Interface Sci., 280(2), 387 (2004)
  11. Goebbert C, Nonninger R, Aegerter MA, Schmidt H, Thin Solid Films, 351(1-2), 79 (1999)
  12. Sun J, Gerberich WW, Francis LF, J. Polym. Sci. B: Polym. Phys., 41B, 1744 (2003)
  13. Kim MS, Chung JG, J. Colloid Interface Sci., 233(1), 31 (2001)
  14. Kim MS, Kim SI, Lee YJ, Kim BS, U.S. patent, 5602195 (1997)
  15. Yang CS, Kim JS, Choi JW, Kwon MH, Kim YJ, Choi JG, Kim GT, J. Ind. Eng. Chem., 6(3), 149 (2000)
  16. Kim MS, Chung JG, J. Colloid Interface Sci., 233(1), 31 (2001)
  17. Riddick TM, Control of Colloid Stability through Zeta Potential, p. 2, Livingston Publishing Co., Pennsylvania (1968)