Matches in SemOpenAlex for { <https://semopenalex.org/work/W1984459144> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W1984459144 endingPage "197" @default.
- W1984459144 startingPage "187" @default.
- W1984459144 abstract "Macroemulsions are inherently thermodynamically unstable systems which exhibit lifetimes which depend on the initial state of the system and the rates of creaming and coalescence. A previous study has shown an apparent relationship of emulsion stability to the thermodynamic equilibrium) phase behavior of systems containing surfactant/hydrocarbon/water M. Bourrel, A. Graciaa, R. S. Schechter, and W. H. Wade, J. Colloid Interface Sci.72, 161 (1979)) . It was found that macroemulsions are most stable at the boundaries which separate two phase systems from those which form three phases consisting of a microemulsion in equilibrium with excess hydrocarbon and water phases. The present investigation shows that on approaching the three-phase boundaries those factors, such as the density difference between phases, the continuous phase bulk viscosity, and the surface viscosity, which tend to influence the rate of creaming, all act to decrease it. Hence at the phase boundary creaming is shown to be a slow step, thereby causing the emulsion to appear to be stable. It was also found that, despite the fact that the surface viscosity is maximum at the boundaries, coalescence becomes more rapid as the boundaries are approached. Thus, while the time scale for creaming increases, that for coalescence decreases. Overall, then, macroemulsions formed well away from the phase boundaries cream first, but persist longest. Within the three-phase region where the surfactant system is balanced equal concentrations of surfactant in the excess phases) coalescence proceeds at a remarkable, but unexplained, speed. In this region macroemulsions coalesce before they cream and emulsion stability is least. These observations are shown to apply to systems in the presence of varying quantities of alcohol. The phase behavior was adjusted by varying the electrolyte concentrations." @default.
- W1984459144 created "2016-06-24" @default.
- W1984459144 creator A5017590647 @default.
- W1984459144 creator A5059984727 @default.
- W1984459144 creator A5059993555 @default.
- W1984459144 creator A5079405010 @default.
- W1984459144 date "1982-01-01" @default.
- W1984459144 modified "2023-09-27" @default.
- W1984459144 title "The relationship between surfactant phase behavior and the creaming and coalescence of macroemulsions" @default.
- W1984459144 cites W2024376555 @default.
- W1984459144 cites W2052232078 @default.
- W1984459144 cites W2059326105 @default.
- W1984459144 cites W2062769864 @default.
- W1984459144 cites W2070313629 @default.
- W1984459144 cites W2123531526 @default.
- W1984459144 cites W2166778989 @default.
- W1984459144 doi "https://doi.org/10.1016/0021-9797(82)90247-8" @default.
- W1984459144 hasPublicationYear "1982" @default.
- W1984459144 type Work @default.
- W1984459144 sameAs 1984459144 @default.
- W1984459144 citedByCount "28" @default.
- W1984459144 countsByYear W19844591442015 @default.
- W1984459144 countsByYear W19844591442017 @default.
- W1984459144 countsByYear W19844591442018 @default.
- W1984459144 countsByYear W19844591442022 @default.
- W1984459144 crossrefType "journal-article" @default.
- W1984459144 hasAuthorship W1984459144A5017590647 @default.
- W1984459144 hasAuthorship W1984459144A5059984727 @default.
- W1984459144 hasAuthorship W1984459144A5059993555 @default.
- W1984459144 hasAuthorship W1984459144A5079405010 @default.
- W1984459144 hasConcept C121332964 @default.
- W1984459144 hasConcept C127172972 @default.
- W1984459144 hasConcept C134514944 @default.
- W1984459144 hasConcept C147789679 @default.
- W1984459144 hasConcept C149792144 @default.
- W1984459144 hasConcept C159467904 @default.
- W1984459144 hasConcept C169259181 @default.
- W1984459144 hasConcept C178790620 @default.
- W1984459144 hasConcept C185592680 @default.
- W1984459144 hasConcept C188324986 @default.
- W1984459144 hasConcept C2778123984 @default.
- W1984459144 hasConcept C2778626634 @default.
- W1984459144 hasConcept C44280652 @default.
- W1984459144 hasConcept C58226133 @default.
- W1984459144 hasConcept C59789625 @default.
- W1984459144 hasConcept C87355193 @default.
- W1984459144 hasConcept C8892853 @default.
- W1984459144 hasConcept C97355855 @default.
- W1984459144 hasConceptScore W1984459144C121332964 @default.
- W1984459144 hasConceptScore W1984459144C127172972 @default.
- W1984459144 hasConceptScore W1984459144C134514944 @default.
- W1984459144 hasConceptScore W1984459144C147789679 @default.
- W1984459144 hasConceptScore W1984459144C149792144 @default.
- W1984459144 hasConceptScore W1984459144C159467904 @default.
- W1984459144 hasConceptScore W1984459144C169259181 @default.
- W1984459144 hasConceptScore W1984459144C178790620 @default.
- W1984459144 hasConceptScore W1984459144C185592680 @default.
- W1984459144 hasConceptScore W1984459144C188324986 @default.
- W1984459144 hasConceptScore W1984459144C2778123984 @default.
- W1984459144 hasConceptScore W1984459144C2778626634 @default.
- W1984459144 hasConceptScore W1984459144C44280652 @default.
- W1984459144 hasConceptScore W1984459144C58226133 @default.
- W1984459144 hasConceptScore W1984459144C59789625 @default.
- W1984459144 hasConceptScore W1984459144C87355193 @default.
- W1984459144 hasConceptScore W1984459144C8892853 @default.
- W1984459144 hasConceptScore W1984459144C97355855 @default.
- W1984459144 hasIssue "1" @default.
- W1984459144 hasLocation W19844591441 @default.
- W1984459144 hasOpenAccess W1984459144 @default.
- W1984459144 hasPrimaryLocation W19844591441 @default.
- W1984459144 hasRelatedWork W142125531 @default.
- W1984459144 hasRelatedWork W1603500393 @default.
- W1984459144 hasRelatedWork W2002980082 @default.
- W1984459144 hasRelatedWork W2029239703 @default.
- W1984459144 hasRelatedWork W2059795011 @default.
- W1984459144 hasRelatedWork W2156142866 @default.
- W1984459144 hasRelatedWork W2806490280 @default.
- W1984459144 hasRelatedWork W2972171526 @default.
- W1984459144 hasRelatedWork W4200605942 @default.
- W1984459144 hasRelatedWork W4243556711 @default.
- W1984459144 hasVolume "85" @default.
- W1984459144 isParatext "false" @default.
- W1984459144 isRetracted "false" @default.
- W1984459144 magId "1984459144" @default.
- W1984459144 workType "article" @default.