Measurement of the zeta potential of oil drops with the spinning tube zetameter

Alain Graciaa (1) , Patrice Creux (1) , Christophe Dicharry (1) , Jean Lachaise (1)

1 TEFC - Thermodynamique et Energétique des fluides complexes

The spinning tube zetameter, an apparatus which was utilized up to now to keep a gas bubble from settling while electrophoretic measurement was carried out, can be used to measure the zeta potential of an oil drop as well. This piece of equipment is brought into play for estimating the influence of various formulation variables (pH, ionic strength, surfactant type or mixture) on the zeta potentials of oil drops. The results are compared to those reported in the literature.

Keywords: Engineering controlled terms: Bubbles (in fluids); Electrophoresis; Ionic strength; Mixtures; Oils and fats; Surface active agents Engineering uncontrolled terms: Spinning tubes; Zeta potentials Engineering main heading: Dispersions Fluids engineering descriptors: bubble; droplet; emulsion; gas; measurement method; spinning

Domains: Chemical Physics [physics.chem-ph]

Alain Graciaa, Patrice Creux, Christophe Dicharry, Jean Lachaise. Measurement of the zeta potential of oil drops with the spinning tube zetameter. Journal of Dispersion Science and Technology, 2002, 23 (1-3), pp.301-307. ⟨10.1081/DIS-120003321⟩. ⟨hal-00688444⟩