P24 超音波乳化への動的プロセス操作法の適用(ポスターセッション)

概要

論文の詳細を見る
Acoustic emulsification is advantageous method to produce emulsion. The technique of sequential sonication is known as the way to obtain fine one. However, there are few study focused on the impact of ultrasound frequency on droplet size of initial crude emulsion and its end product. In this article, we investigated the sequential sonication method to make toluene-water emulsion assuming to apply to paint etc. We used ultrasound with various frequency ranging from 22.8 to 1640kHz. When crude emulsion was with the size of about 3μm, 1640kHz was the most effective frequency. This result agrees with another study. But ultrasound with lower frequency was more effective providing initial emulsion size is about 40μm. It has been demonstrated that the most effective frequency deferred according to the size of initial crude emulsions. The results can be applicable to obtaining the emulsion with specific droplet size, despite under the conditions containing large fraction of oil.
日本ソノケミストリー学会の論文
2013-10-25