W/Oエマルジョンによるミクロンサイズ球状シリカ粒子の合成 Preparation of Spherical Silica Particles of Micron Scale by Sol-Gel Methods in W/O Emulsion
A preparation method for micron scale spherical silica particles was investigated by combining the hydrosis and condensation of tetraethylorthosilicate (TEOS) in W/O emulsion. The aggregation took place when ammonia was used as catalyst. On the other hand, micron scale spherical silica particles could be obtained in the presence of water instead of ammonia.
化学工学論文集 23(3), 440-442, 1997-05-10
The Society of Chemical Engineers, Japan