小液滴在水平液液界面上的聚并  

COALESCENCE OF A SMALL DROP ON A PLANE LIQUID-LIQUID INTERFACE

作　　者：刘世平[1] 李佟茗[1] 

机构地区：[1]天津大学化学工程系,天津300072

出　　处：《化工学报》1996年第1期85-90,共6页CIESC Journal

基　　金：国家自然科学基金

摘　　要：对纯净系统中的小液滴在水平液液界面上聚并时的薄液膜排液过程进行了理论分析，研究两相物理性质、范德华力、界面切向运动对聚并速率的影响，得到了计算聚并时间的公式．理论预测与实验结果符合良好．The coalescence process of a small drop on a plane liquid-liquid interface in pure liquid-liquid systems has been studied.A model for the dynamics of the thinning film was developed with the interfacial mobility taken into account.London-van der Waals force in thin liquid film was recognized.The model predicted the coalescence time,which is the time required for the thinning and rupture of the liquid film,given the radius of the drop and the required physical properties of a liquid-liquid system.The predicted result was in good agreement with previous experimental results.

关 键 词：液滴 聚并 界面 液液界面 

分 类 号：O552.6[理学—热学与物质分子运动论]