The influence of charged gel layers on the electrokinetic phenomena

Churaev, N. V.; Kotov, A. R.; Solometsev, Y.; Starov, Victor

doi:10.1007/bfb0115988

Cited by 5 publications

(2 citation statements)

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“…The presence of porous shells on solid surfaces substantially modifies both hydrodynamic [5][6][7] and electrokinetic [8][9][10][11][12] phenomena. Hydrodynamic interaction of two particles covered by a porous shell is substantially different from that of nonporous particles [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic permeability of membranes built up by particles covered by porous shells: Cell models

Vasin

Филиппов

Starov

2008

Advances in Colloid and Interface Science

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic permeability of membranes built up by particles covered by porous shells: Cell models

Vasin

Филиппов

Starov

2008

Advances in Colloid and Interface Science

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“…It is known that turbid trisiloxane BE8 solutions spreading over hydrophobic surfaces may form wetting films with a thickness of several microns . This explains the rapid spreading of such solutions. , Recently this was confirmed by Wagner et al, who showed that rapid spreading takes place only in the case of turbid trisiloxane solutions.…”

Section: Removal Of Oil Droplets From a Hydrophobed Solid Surface In ...mentioning

confidence: 88%

Application of a Trisiloxane Surfactant for Removal of Oils from Hydrophobic Surfaces

et al. 2001

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Rates of advancing and receding menisci motion, v, under applied pressure difference ΔP in thin methylated quartz capillaries were investigated for trisiloxane solution−gas and trisiloxane solution−silicone oil systems. Dynamic values of the tension of wetting were calculated from the v(ΔP) dependence. Both dynamic surface and interfacial tensions and contact angles were assessed. Using solutions of the trisiloxane surfactant, M(D‘E8OH)M, nearly complete displacement of silicone oils from hydrophobed capillaries becomes possible. Removal of silicone oil films of various viscosities from the methylated surface of thin (about 5 μm in radius) quartz capillaries using M(D‘E8OH)M was investigated. In the case of spontaneous displacement, the oil film converts into a small oil column in front of the moving meniscus. The rate of oil film detachment follows diffusion kinetics as a result of penetration of surfactant molecules between the solid surface and the oil. Comparison of the volume of a smeared off and detached volume of the oil shows that silicone oils are displaced nearly completely. Using a video camera, transformation of a flat silicone oil film with base diameter 0.6 mm on a methylated glass surface into a floating spherical oil droplet was studied. Detachment of the droplet with diameter 0.19 mm occurs very rapidly during 14 s. Removal of an oil droplet sitting on an inclined methylated glass plate occurs as a result of oil emulsification in the course of interaction with a thick climbing trisiloxane film flowing around the droplet. The results obtained show that trisiloxane surfactants may be used not only as superspreaders but also as cleaning agents.

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Mathematical Modeling of Filtration Processes in Porous Media

Филиппов

2014

Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology

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The influence of charged gel layers on the electrokinetic phenomena

Cited by 5 publications

References 0 publications

Hydrodynamic permeability of membranes built up by particles covered by porous shells: Cell models

Hydrodynamic permeability of membranes built up by particles covered by porous shells: Cell models

Application of a Trisiloxane Surfactant for Removal of Oils from Hydrophobic Surfaces

Mathematical Modeling of Filtration Processes in Porous Media

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