Transfer of Oil between Emulsion Droplets

Journal of Colloid and Interface Science
L TaisneB Cabane

Abstract

A contrast matching technique was used to determine the exchange of oils between emulsion droplets having different refractive indexes. Emulsions of tetradecane and 1-bromo tetradecane in water were made separately in a high-pressure homogenizer, then mixed and equilibrated at rest. It was found that droplets exchanged oil molecules through the continuous phase, in a process similar to Ostwald ripening. Emulsions of hexadecane and 1-bromo hexadecane were also mixed; at rest, no exchange of oil took place. These mixtures were subsequently recirculated in the high-pressure homogenizer. Exchange of oil occurred as a result of droplet coalescence in the homogenizer. Two regimes were found, "surfactant-poor" and "surfactant-rich." In the "surfactant-poor" regime, recoalescence took place at all values of the pressure used in the homogenizer. In the "surfactant-rich" regime, recoalescence took place only if the pressure was at least equal to that used originally to make the emulsion. These results demonstrate that the size of the emulsion droplets made in a high-pressure homogenizer results from a succession of fragmentation and recoalescence processes. Possible mechanisms preventing recoalescence are discussed.

Citations

Oct 19, 2007·Critical Reviews in Food Science and Nutrition·David Julian McClements
Aug 23, 2012·Journal of Colloid and Interface Science·Audrey DrelichIsabelle Pezron
Dec 4, 2014·Advances in Colloid and Interface Science·M KarbaschiR Miller
Apr 26, 2012·Angewandte Chemie·Kevin Roger, Bernard Cabane
Jul 21, 2006·Advances in Colloid and Interface Science·Slavka TcholakovaBruce Campbell
Dec 17, 2014·Angewandte Chemie·Kevin RogerBernard Cabane
Mar 1, 2012·Journal of Colloid and Interface Science·Andreas HåkanssonBjörn Bergenståhl
May 21, 2011·Journal of Colloid and Interface Science·Thomas DelmasIsabelle Texier
Dec 17, 2008·Physical Chemistry Chemical Physics : PCCP·O Sonneville-AubrunB Cabane
Nov 11, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Isabelle MartielRaffaele Mezzenga
Mar 14, 2008·Physical Chemistry Chemical Physics : PCCP·S TcholakovaA Lips
Feb 19, 2010·Physical Chemistry Chemical Physics : PCCP·Bernard P BinksKenneth Wong
Nov 2, 2013·Chemical Communications : Chem Comm·Aijing MaHaolan Xu
May 7, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Anniina SalonenOtto Glatter
Aug 19, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Lennart LindforsUlf Olsson
Nov 11, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Kevin RogerUlf Olsson
Dec 22, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Kevin RogerUlf Olsson
Jan 14, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Thomas DelmasJérôme Bibette
May 3, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Sara LlamasFrancesca Ravera
Feb 18, 2020·Industrial & Engineering Chemistry Research·Ernesto TripodiFotis Spyropoulos
Aug 25, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Slavka TcholakovaThomas Danner

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