DIELECTRIC-PROPERTIES OF W O EMULSIONS UNDER FLOW/

Water-in-oil model emulsions with various amounts of the aqueous phase . i.e. 24 to 74 % by volume and with 4% NaCl, have been characterized by means of time domain dielectric measurements in the frequency regio n 50 MHz to 2 GHz. The measurements were carried out in a flow loop wh ich made it possible to do the characterization of the emulsions both under flow and at rest. The flowing emulsions show in general lower st atic permittivities than the corresponding emulsions at rest. The diel ectric data are explained by models involving a flocculation of the aq ueous droplets. The result indicate just a small deviation from spheri city of the formed flocs.