Water mass transfer in W/O emulsionsстатья
Информация о цитировании статьи получена из
Web of Science ,
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 сентября 2017 г.
Авторы:
Koroleva M.Yu ,
Yurtov E.V.
Журнал:
Journal of Colloid and Interface Science
Том:
297
Номер:
2
Год издания:
2006
Издательство:
Academic Press
Местоположение издательства:
United States
Первая страница:
778
Последняя страница:
784
DOI:
10.1016/j.jcis.2005.10.046
Аннотация:
Water transportation through the oil phase in W/O emulsions and in W1/O/W2 systems (W/O emulsion in contact with water) was examined. Substance diffusion through interfaces led to interface instability and spontaneous emulsification which caused nanodispersion formation. The photomicrographs of Pt/C replicas of emulsions showed the presence in the continuous oil phase a lot of nanodispersion droplets with a diameter in the range 17-25 nm. Diffusion coefficient (D) of water calculated on the base of Lifshiz-Slezov-Wagner (LSW) equation was about 15 times lower than the coefficients of molecular diffusion. Since such emulsions were extremely unstable toward coalescence, the growth of water droplets took place through as Ostwald ripening as coalescence. In three-phase W1/O/W2 systems diffusion of water, Rhodamine C, and ethanol was studied. D calculated on the base of the equation of nonstationary diffusion were approximately 1000 times lower than molecular ones. It was assumed, that nanodispersion droplets were more likely water carriers in investigated W/O emulsions stabilized by sorbitan monooleate. © 2005 Elsevier Inc. All rights reserved.
Добавил в систему:
Юртов Евгений Васильевич