Solvent Washing Dry Method for Aqueous Tape Casting

  • Yoon, Seok-Jin (Thin Film Technology Research Center, Korea Institute of Science and Technology) ;
  • Shin, Hyo-Soon (Thin Film Technology Research Center, Korea Institute of Science and Technology) ;
  • Park, Ji-Won (Thin Film Technology Research Center, Korea Institute of Science and Technology) ;
  • Kang, Chong-Yun (Thin Film Technology Research Center, Korea Institute of Science and Technology) ;
  • Kim, Tae-Song (Thin Film Technology Research Center, Korea Institute of Science and Technology) ;
  • Kim, Hyun-Jai (Thin Film Technology Research Center, Korea Institute of Science and Technology)
  • Published : 2001.06.01

Abstract

For the fast dry of the aqueous tape, the process which water was replaced by organic solvent was proposed. Socalled, it was the solvent washing dry. Three organic solvents (methanol, ethanol and acetone) were selected for the washing solvent. The weight loss of the washed tapes was measured to evaluate the dry rate of the tapes and dried tapes were examined the generation of the cracks with the variations of the organic solvent and the washing time. Methanol, ethanol and acetone were available organic solvents for this method. The tapes washed in methanol, ethanol and acetone were dried rapidly for twenty minutes. After thirty minutes, the weight losses were not found any more. The solvent of the lower surface tension can decreases the crack of dried tape. If solvent substitutes water completely, though it was fast dried, crack can be eliminated.

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References

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