Vliv povrchově aktivních látek na stabilitu emulzí
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Vysoká škola báňská - Technická univerzita Ostrava
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Abstract
This bachelor thesis is focused on the influence of several surface active agents on emulsion stability. The following surfactants were used: sodium oleate, tert-butanol, sodium dodecyl sulfate, polyethylene – polypropylene glycol, propylene glycol monostearate and oleic acid.
The preparation of solutions for measurement of surface and interfacial tension is described in the experimental part. For a single surfactant solution was realized an experiment on a 3D-printed droplet generator.
The result is concentration dependencies of the individual surfactants. Then, optimal concentrations of surfactants were determined in both aqueous and oil phases.
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Surface active agents, surfactant, surface tension, interfacial tension, methods for measuring surface and interfacial tension, critical micelle concentration, emulsions, dispersion W/O, dispersion O/W, emulsifier, multiphase flow, microfluidic device, droplet generator.