Droplet freezing experiments in stearic acid-water emulsions role of the droplet-medium interface

Droplets of stearic acid emulsions in water, stabilized with cationic or anionic emulsifiers, undergoing freezing-melting cycles with constant temperature scanning rate, freeze as monocrystals and independently from one another, even when visible clustering takes place. The study of the nucleation k...

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Bibliographic Details
Published in:Journal of colloid and interface science 1982-01, Vol.85 (2), p.431-441
Main Authors: Cordiez, J.P, Grange, G, Mutaftschiev, B
Format: Article
Language:English
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Summary:Droplets of stearic acid emulsions in water, stabilized with cationic or anionic emulsifiers, undergoing freezing-melting cycles with constant temperature scanning rate, freeze as monocrystals and independently from one another, even when visible clustering takes place. The study of the nucleation kinetics by differential scanning calorimetry shows that nucleation threshold (critical undercooling) depends on the nature of the emulsifier, adsorbed at the droplet-medium interface.
ISSN:0021-9797
1095-7103
DOI:10.1016/0021-9797(82)90009-1