Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Dispersion Behavior of Transparent Dielectric Glass Frits in the Multi-Solvent and Ammonium-Type Dispersant System

다성분 용매와 암모늄계 분산제가 적용된 투명 유전체 프릿트 슬립의 분산거동

  • Kim, Joo-Won (Department of Advanced Materials Science and Engineering, Mokpo National University) ;
  • Chun, Young-Hwan (Glass and Display Team, Korea Institute of Ceramic Engineering and Technology) ;
  • Hwang, Jong-Hee (Glass and Display Team, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Sang-Jin (Department of Advanced Materials Science and Engineering, Mokpo National University)
  • 김주원 (국립목포대학교 신소재공학전공) ;
  • 전영환 (요업(세라믹)기술원 유리디스플레이팀) ;
  • 황종희 (요업(세라믹)기술원 유리디스플레이팀) ;
  • 이상진 (국립목포대학교 신소재공학전공)
  • Published : 2006.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Dispersion behavior of the slurries consisted of Pb or Bi-based glass frits, which are used for the fabrication of green sheet as PDP front panel transparent dielectric, was examined in non-aqueous solvent system. Measurements of sedimentation height and viscosity were conducted to determine proper dispersion condition in the various solvent and dispersant system. Azotropic compound and ethyl acetate were used as the solvent and ammonium-type dispersant was applied to the slurries. All slurries were dispersed well in azotropic solvent system involving 20$\sim$50 vol% ethyl acetate at 2$\sim$3 wt% dispersant content. Especially, dispersion behavior was notably improved in the addition of ethyl acetate in the Bi-based frit slurry.

Keywords

References

  1. J. S. Jun, M. R. Cha, and H. S. Kim, 'Optical Properties of $Bi_2O_3-ZnO-SiO_2$ Glass System for Transparent Dielectric,' Kor. J. Mater. Res., 14 [9] 670-75 (2004) https://doi.org/10.3740/MRSK.2004.14.9.670
  2. K. Otsuka, Y. Ohsawa, K. Yamada, and Sekibat, 'A Study on the Alumina Ceramics Casting Conditions by the Doctor Blade Method and their Effect on the Properties of Green Tape (Part I),' Yogyo-Kyokai-Shi., 94 [3] 351-59 (1986) https://doi.org/10.2109/jcersj1950.94.1087_351
  3. K. Otsuka, Y. Ohsawa, K. Yamada, and Sekibat, 'A Study on the Alumina Ceramics Casting Conditions by the Doctor Blade Method and their Effect on the Properties of Green Tape (Part II),' Yogyo-Kyokai-Shi., 94 [11] 1136-41 (1986) https://doi.org/10.2109/jcersj1950.94.1095_1136
  4. K. Nagata, 'Rheology Behavior of Suspension and Properties of Green Sheet-Effect of Compatibility between Dispersant and Binder,' J. Ceram. Soc. Jpn., 100 [10] 1271-75 (1992) https://doi.org/10.2109/jcersj.100.1271
  5. S.-C. Heo, D.-K. Choi, and Y.-J. Oh, 'Fabrication of Transparent Dielectric Green Sheet for Plasma Display Panel(in Korean),' J. Kor. Ceram. Soc., 41 [4] 277-83 (2004) https://doi.org/10.4191/KCERS.2004.41.4.277
  6. R. Moreno, 'The Role of Slip Additives in Tape-Casting Technology : Part 1-Solvents and Dispersants,' Am. Ceram. Soc. Bull., 71 [10] 1521-31 (1992)
  7. H. Choi, 'The Lamination and Sintering Mechanism of Pore-Controlled Alumina Tapes(in Korean),' A Master's Thesis, Yonsei University, Seoul, 1999
  8. R. E. Milstler and E. R. Twiname, 'Tape Casting : Theory and Practice,' The Am. Ceram. Soc., Westerville, OH, USA, 2000