選択溶解処理法で調製したメソポア多孔質材料による焼成体の作製とその調湿機能

概要

論文の詳細を見る
To develop a humidity self-control material, mesoporous powder was prepared from kaolin by a selective leaching method and a porous fired body was formed upon firing after pressing with adding organic binders. The humidity conditioning ability was evaluated by the B-value method. The B-value, specific surface area, total pore volume, pore size distribution, and water vapor adsorption of the selectively leached kaolin ceramics were compared with commercially available humidity conditioning ceramics. The selectively leached kaolin ceramics showed the highest B-value among the humidity conditioning ceramics investigated and this result is considered to be obtained because of a narrow pore size distribution at around 1-4 nm in pore radius. The pore size necessary to show capillary condensation at relative humidity of 60% was calculated to be about 1.5 nm in radius based on the Kelvin's capillary condensation theory. This confirmed the importance of a narrow and fine pore distribution.
社団法人日本セラミックス協会の論文
2002-02-01