oil-water interface


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oil-water interface

[′ȯil ¦wȯd·ər ′in·tər‚fās]
(geology)
References in periodicals archive ?
Interfacial tension-time behaviour of egg yolk lipoproteins at the groundnut oil-water interface," Colloid & Polymer Science, vol.
Also, as expected, all the EOSLs were able to displace oil at the oil-water interface to varying degrees due to their newly acquired surfactant like properties (Figure 2).
A similar phenomenon was observed at an oil-water interface when the particle charge was varied 2 x [10.sup.4] to 5 x [10.sup.4] (see Figure 8).
The scientists attributed these changes to both the decreased surface hydrophobicity and the substantially decreased ability of the hydrolysates to interact at the oil-water interface.
In petroleum desalting serious operations problems are caused by formation of a thick, viscous layer at the oil-water interface in practically all separation vessels.
The layer of whey proteins adsorbed at the oil-water interface creates sensitive lipids with long-term oxidative stability.
The modification of crude oil composition (due to addition or removal of light gaseous ends) could disturb the balance and hence would result in precipitation of asphaltenes out of solution from crude oil and thereby increasing their concentration at the oil-water interface. But they would not dissolve into the brine directly since they are insoluble in water.
It has been reported that the type and stability of Pickering emulsions are highly dependent on the wettability of stabilizer captured by the oil-water interface [32].
10,028,895 B2; L'Oreal, Paris, has patented a method for preparing an emulsion, that comprises preparing an O/W dispersion comprising at least one cationic surface active adsorbed to the oil-water interface such that oil droplets have a cationic surface; preparing a solution comprising at least one dissolved silicate salt; adjusting the pH of the solution with the one dissolved silicate salt to a range of 6.0 to about 9.0 to create anionic complexes; mixing the O/W dispersion and the solution such that the anionic complexes are attracted to the cationic surface of the oil droplets, resulting in encapsulated oil droplets.
When the [Na.sub.2]C[O.sub.3] cooperates with the surfactant, the surfactant molecules and the produced soap could simultaneously be absorbed on oil-water interface. In addition, the three ions have different diameters, and the diameter of [Na.sup.+] is the smallest, so it is easier to absorb between large molecules.
The technologies in this business unit: deliver innovative solutions that enable the tapping of oil and gas resources; optimize manufacturing with additives that minimize friction and heat in mechanical processes, manage the oil-water interface and facilitate dissolvability; advance energy efficiency solutions in white goods; and enable infrastructure material properties through unique modifiers and additives.
For Span 80, its value lies between 30 x [10.sup.-20] [m.sup.2] and 50 x [10.sup.-20] [m.sup.2] at oil-water interfaces (Peltonen et al., 2001).