Droplets of Intermediate Size

CQ 150 O 100 50 0 m m U 1 1 1 1 interfacial tension is 1.15 dyn/cm. The lines are a guide to the eye, (Reprinted with permission from Pons etal.. Journal of Physical Chemistry 97 12320 Copyright 1993, American Chemical Society.) 

The characteristic relaxation time t = 1 /(Hp was found to be insensitive to the droplet size a, weakly dependent on the continuous-phase viscosity, and perhaps weakly dependent on r and M also. Although the complete scaling law for r cannot be deduced from this limited set of data, it is evidently influenced by lubrication flow of liquid in the thin films between the deformed droplets, and perhaps also by the circulatory flow in the viscous droplets. 

In this form, the Princen and Kiss equation makes clear that the plot of Otsubo and 

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