• 作者： Lee, Chau-Jen; Wang, Shih-Sheng; Chan, Chih-Chieh
• 中文摘要： 在高壓電場中加速破乳對乳化型液膜是一個有效率的破乳法。將含有硫酸的水滴包在含有界面活性劑(SPAN 80或ECA 4360)的蠟油(PO 7174或 PO 7160)所形成的W/O型乳液放入60Hz的交流高壓靜電場中破乳。在電場強度大於5kV/ cm時,大約80%的乳液在10分鐘內破乳,約20分鐘時全部破乳完成。高壓電場的破乳程序可以分成三個連續步驟,即液滴合併長大(DCG)、液滴沈降(DS)和液滴界面合併(DIC)步驟。實驗結果顯示在此三連續步驟中,液滴合併長大(DCG)步驟是速率決定步驟。
• 英文摘要： Electrical enhanced demulsification in a high voltage field is one of the effective demulsification methods for emulsion liquid membranes. W/O type emulsions consisting of de-ionid water droplets containing H/sub 2/SO/sub 4/ in paraffin oil (PO 7174 or PO 7160) with a surfactant (SPAN 80 or ECA 4360) are subjected to a uniform 60Hz, AC high voltage electrostatic field (0.83-10kV/cm) for demulsification. About 80% of emulsions are demulsified within 10 minutes, and the demulsification is almost complete after around 20 minutes at electric field strength greater than 5kV/cm. Three successive steps are hypothesized to involve in demulsification process under high voltage field, i.e., droplet coalescence and growth (DCG), droplet settling (DS), and droplet interfacial coalescence (DIC). The results show that DCG step is the rate controlling step among the three successive steps.
• 中文關鍵字： 乳化; 液體薄膜; 破乳; 聚結; 高電壓場
• 英文關鍵字： Emulsion; Liquid Membrane; Demulsification; Coalescence; High Voltage Field