Pickering emulsions - A paradigm shift

Sowmitri Tarimala, Chih Yuan Wu, Lenore L. Dai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Emulsions stabilized by solid particles are known as Pickering emulsions. Although Pickering emulsions are encountered in various natural and industrial processes such as crude oil recovery, oil separation, cosmetic preparation, and waste water treatment, the underlying phenomena are poorly understood. The structure of self-assembled microparticles and dodecanethiol-capped silver nanoparticles was studied at Pickering emulsion interfaces using confocal microscopy and environmental transmission microscopy. Monodisperse polystyrene particles aggregated and formed small patches at the polydimethylsiloxane/water emulsion interface with local hexagonal order. Because of the relatively low surface concentration of the solid particles (∼ 0.46) at the oil-water interface, the aggregation of particles and formation of islands are likely due to the diffusion-limited cluster aggregation, which is analogous to colloidal suspensions. This is an abstract of a paper presented at the AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

Original languageEnglish (US)
Title of host publication05AIChE
Subtitle of host publication2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
PublisherAmerican Institute of Chemical Engineers
ISBN (Print)0816909962, 9780816909964
StatePublished - Jan 1 2005
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: Oct 30 2005Nov 4 2005

Publication series

NameAIChE Annual Meeting Conference Proceedings
Volume2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period10/30/0511/4/05

ASJC Scopus subject areas

  • Energy(all)

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  • Cite this

    Tarimala, S., Wu, C. Y., & Dai, L. L. (2005). Pickering emulsions - A paradigm shift. In 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings (AIChE Annual Meeting Conference Proceedings; Vol. 2005). American Institute of Chemical Engineers.