Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
595290 | Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2010 | 8 Pages |
Abstract
The structure of water-in-paraffin oil emulsions stabilized by both cationic surfactant (CTAB) and silicon oxide nanoparticles is investigated. A transition in the geometry of the droplets, which from spherical turns polymorphous, is discussed on the basis of scanning electron microscopy observations. The freeze-fracture technique is employed in addition to a sublimation procedure helping the visualization of the inner structure of the droplets. Their deformation is shown to be a consequence of the interplay between nanoparticles, CTAB and interfacial properties. For polymorphous droplets the existence of a network of self assembled particles bridging them from part to part is evidenced.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
S. Limage, M. Schmitt, S. Vincent-Bonnieu, C. Dominici, M. Antoni,