title: Particles adsorbed at various non-aqueous liquid-liquid interfaces.
abstract: Particles adsorbed at liquid interfaces are commonly used to stabilise water-oil Pickering emulsions and water-air foams. The fundamental understanding of the physics of particles adsorbed at water-air and water-oil interfaces is improving significantly due to novel techniques that enable the measurement of the contact angle of individual particles at a given interface. The case of non-aqueous interfaces and emulsions is less studied in the literature. Non-aqueous liquid-liquid interfaces in which water is replaced by other polar solvents have properties similar to those of water-oil interfaces. Nanocomposites of non-aqueous immiscible polymer blends containing inorganic particles at the interface are of great interest industrially and consequently more work has been devoted to them. By contrast, the behaviour of particles adsorbed at oil-oil interfaces in which both oils are immiscible and of low dielectric constant (ε<3) is scarcely studied. Hydrophobic particles are required to stabilise these oil-oil emulsions due to their irreversible adsorption, high interfacial activity and elastic shell behaviour.
authors.affiliation: Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, 18071-E Granada, Spain. Electronic address: mafernandez@ugr.es.
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Fernandez-Rodriguez
authors.affiliation: School of Mathematics and Physical Sciences, University of Hull, Hull HU6 7RX, UK.
authors.forename: Bernard P
authors.initials: BP
authors.lastname: Binks
authors.affiliation: Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, 18071-E Granada, Spain.
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Rodriguez-Valverde
authors.affiliation: Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, 18071-E Granada, Spain.
authors.forename: Miguel Angel
authors.initials: MA
authors.lastname: Cabrerizo-Vilchez
authors.affiliation: Biocolloid and Fluid Physics Group, Applied Physics Department, Faculty of Sciences, University of Granada, 18071-E Granada, Spain.
authors.forename: Roque
authors.initials: R
authors.lastname: Hidalgo-Alvarez
keywords: Interfacial activity; Low dielectric constant; Oil-oil interfaces; Particle-laden interfaces; Water-free emulsions