Mechanics of Pickering Drops Probed by Electric Field-Induced Stress.

ABSTRACT: Fluid drops coated with particles, so-called Pickering drops, play an important role in emulsion and capsule applications. In this context, knowledge of mechanical properties and stability of Pickering drops are essential. Here we prepare Pickering drops via electric field-driven self-assembly. We use direct current (DC) electric fields to induce mechanical stress on these drops, as a possible alternative to the use of, for example, fluid flow fields. Drop deformation is monitored as a function of the applied electric field strength. The deformation of pure silicone oil drops is enhanced when covered by insulating polyethylene (PE) particles, whereas drops covered by conductive clay particles can also change shape from oblate to prolate. We attribute these results to changes in the electri

SUBMITTER: Mikkelsen A 

PROVIDER: S-EPMC5506933 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature