Particles adsorbed at various non-aqueous liquid-liquid interfaces

Fernandez-Rodriguez, Miguel Angel; Binks, Bernard P.; Rodriguez-Valverde, Miguel Angel; Cabrerizo-Vilchez, Miguel Angel; Hidalgo-A?lvarez, Roque

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.

Citation

Fernandez-Rodriguez, M. A., Binks, B. P., Rodriguez-Valverde, M. A., Cabrerizo-Vilchez, M. A., & Hidalgo-Álvarez, R. (2017). Particles adsorbed at various non-aqueous liquid-liquid interfaces. Advances in Colloid and Interface Science, 247, 208-222. https://doi.org/10.1016/j.cis.2017.02.001

• Journal Article Type: Article
• Acceptance Date: Feb 5, 2017
• Online Publication Date: Feb 7, 2017
• Publication Date: 2017-09
• Deposit Date: Feb 13, 2017
• Publicly Available Date: Feb 8, 2018
• Journal: Advances in colloid and interface science
• Print ISSN: 0001-8686
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 247
• Pages: 208-222
• DOI: https://doi.org/10.1016/j.cis.2017.02.001
• Keywords: Oil-oil interfaces; Interfacial activity; Low dielectric constant; Particle-laden interfaces; Water-free emulsions
• Public URL: https://hull-repository.worktribe.com/output/448072
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0001868616303025
• Additional Information: Authors' accepted manuscript of article published in: Advances in colloid and interface science, 2017, v.247.
• Contract Date: Feb 8, 2018