Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Evaluation of Humidity Control Ceramic Paint Using Gypsum Binder

  • Lee, Jong-Kyu (Energy and Environment Division Ceramics Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Tae-Yeon (Energy and Environment Division Ceramics Division, Korea Institute of Ceramic Engineering and Technology)
  • Received : 2017.11.08
  • Accepted : 2018.01.15
  • Published : 2018.01.31
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Abstract

Active clay, bentonite and zeolite were used as porous materials for humidity controlling ceramic boards. The specific area and the pore volume of active clay were higher than those of bentonite and zeolite. It was effective to add white cement as well as a retarding agent to control the setting time of the ceramic paint. As the amount of added porous materials increases, the specific surface area and total pore volume of ceramic paint increase, but the average pore diameter decreases. The addition of porous materials having a high specific area and a large pore volume improves the moisture absorptive and desorptive performance of the ceramic paint. Therefore, in this experiment, the moisture absorptive and desorptive properties were best when active clay was added. Also, as the added amount of porous materials increases, the moisture absorptive and desorptive properties improve. In this experiment, when 70 mass% of active clay was added to ceramic paint, the hygroscopicity was highest at about $80g/m^2$.

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References

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