Estimation of interface tension in the structured disperse systems using rheological data
Abstract
On the base of full flow curves of structured oil-in-water emulsions with 0,12 to 0,32 part by volume of oil phase the main oil particle diameters and yield strength were determined. A novel equation was obtained with the use of Deriagin equation and equation for estimation of the yield strength of structured emulsion. This equation permits us to estimate the surface tension in the water medium-oil particle interface (P-M) with the aid of experimental data. The P-M value in such systems was shown to be equal 0,3 mN/m and found to be almost constant in the investigated region of concentrations. For the comparison an estimation of the same value with the use of the Gamaker constant is also given in the present paper.
About the Authors
G. A. Grigoriev
M.V. Lomonosov Moscow State University of Fine Chemical Technologies, 86, Vernadskogo pr., Moscow 119571
Russian Federation
Russian Federation
R. G. Allahverdov
Pharmaceutical Reagents Institute Repharm, 2 buld.2 Kolodezny lane, Moscow, 107076
Russian Federation
Russian Federation
U. U. Stoliarov
Pharmaceutical Reagents Institute Repharm, 2 buld.2 Kolodezny lane, Moscow, 107076
Russian Federation
Russian Federation
References
1. M. Vermeulen, P. Joos, Ghosh. J. of Colloid and Interface Science, 1990, vol.140, №11
2. M. Vermeulen, P. Joos. Colloids and Surfaces, 1988, vol.33, p.337-346
3. J. Rudin, C. Bernard, D.T.Wasan. Ind. Eng. Chem. Res., 1994, vol.33, p.1150-1158
4. J. Rudin, D.T.Wasan. Colloids and Surfaces, 1992, vol.68, p.67-79
5. J. Rudin, D.T.Wasan. Colloids and Surfaces, 1992, vol.68, p.81-94
6. C.A.Miller. Colloids and Surfaces, 1988, vol.29, p.89-102
7. M. Vermeulen, P. Joos. Colloids and Surfaces, 1989, vol.36, p.13-27
8. Григорьев Г.А., Ингерова Т.В. Журн. физ. химии, 1998, т.72, №6, с.1103-1105
9. Григорьев Г.А., Золкина Н.К., Столяров Ю.Ю., Аллахвердов Г.Р. Журн. физ. химии, 2001, т.75, №10, с.1843-1845
10. Урьев Н.Б., Потанин А.А. Текучесть суспензий и порошков. М., Химия, 1992, 256 с.
11. Ребиндер П.А., Щукин Е.Д., Марголис Л.Я. ДАН СССР, 1964, т.154, №3, с.695
12. Щукин Е.Д., Перцов А.В., Амелина Е.А. Коллоидная химия, Изд-во МГУ, 1982, 348 с.
Review
For citations:
Grigoriev G.A., Allahverdov R.G., Stoliarov U.U. Estimation of interface tension in the structured disperse systems using rheological data. Fine Chemical Technologies. 2006;1(2):37-39. (In Russ.)
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