Coalescence of Particle-Laden Fluid Interfaces

Colloidal particles are capable of stabilizing emulsions and, thus, slowing or preventing their complete breakdown into phase-separated systems. Direct observations of the dynamics of such particles on both water and oil droplets are reported as two colloid-laden interfaces are brought into contact...

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Bibliographic Details
Published inLangmuir Vol. 20; no. 1; pp. 90 - 94
Main Authors Stancik, Edward J, Kouhkan, Mehrnaz, Fuller, Gerald G
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 06.01.2004
Subjects
Chemical Phenomena
Chemistry, Physical
Colloids - chemistry
Emulsions - chemistry
Oils - chemistry
Particle Size
Surface Properties
Time Factors
Water - chemistry
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Summary:Colloidal particles are capable of stabilizing emulsions and, thus, slowing or preventing their complete breakdown into phase-separated systems. Direct observations of the dynamics of such particles on both water and oil droplets are reported as two colloid-laden interfaces are brought into contact with each other. As coalescence proceeds, the complementary systems, representing oil-in-water and water-in-oil emulsions, exhibit contrasting mechanisms for the formation of ring and disk structures by the particles as they serve to temporarily stabilize the approaching surfaces. An explanation of such behavior leads to a better understanding of the stabilization and breaking mechanisms of so-called Pickering emulsions.
Bibliography:ark:/67375/TPS-2PGP9RV9-L
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ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0743-7463
1520-5827
DOI:10.1021/la0356093