pH effect on rheological properties of surfactant solutions in hard water

• Autorzy: Broniarz-Press L. , Różański J. , Bednarz J.
• Konferencja: Second International Conference on Engineering Rheology ICER 2003
• Języki publikacji: EN

Abstrakty

EN

In the paper the results of experiments on the both, salt and pH effect, on the rheological properties of surfactant solutions (in hard and distilled water) are presented. Three surfactants were used: hexadecyltrimethylammonium bromide (cationic), sodium oleate and potassium oleate (anionic). The special additives were sodium salicylate (NaSal), calcium and magnesium chloride, sodium sulphate, sodium phosphate as well as sodium hydroxide, hydrochloric acid of various concentrations. The studies showed the existing for a given solution the optimal pH value connected with both, the maximum of a viscosity and formation of the shear induced structure SIS. The effect of ions and pH depends on the kind of surfactant/solvent system. It has been shown that the effect of the pH of water on the rheological properties of the solutions studied is more evident for sodium oleate than for HTAB/NaSal.

Słowa kluczowe

EN

drag reduction; surfactant; rodlike micelle; pH effect; surfactant solutions in the distilled and hard water

PL

mechanika; redukcja oporu; efekt pH; woda destylowana

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2003
• Tom: Vol. 8, no spec.
• Strony: 201--206
• Opis fizyczny: Bibliogr. 5 poz., wykr.

Twórcy

autor

Broniarz-Press L.

• Department of Chemical Engineering and Equipment, Faculty of Chemical Technology Poznań University of Technology, PL 60-965 Poznań, POLAND

autor

Różański J.

• Department of Chemical Engineering and Equipment, Faculty of Chemical Technology Poznań University of Technology, PL 60-965 Poznań, POLAND

autor

Bednarz J.

• Department of Chemical Engineering and Equipment, Faculty of Chemical Technology Poznań University of Technology, PL 60-965 Poznań, POLAND

Bibliografia

• [1] Hu Y.T. and Matthys E.F. (1997): Effect of metal ions and compounds on the rheological properties of a cationic surfactant solution exhibiting shear-induced structure formation. - J. Colloid Interface Sci, vol,186, pp.352-359.
• [2] Myska J. and Stern P. (1998): Significance of shear induced structure in surfactants for drag reduction. - Colloid Polym. Sci., vol.276, pp.816-823.
• [3] Myska J., Lin Z., Stepanek P. and Zakin J.L. (2001): Influence of salts on dynamic properties of drag reducing surfactants. - J. Non-Newton. Fluid Mech., vol.97, pp.251-266.
• [4] Ohlendorf D., Interhal W. and Hoffmann H. (1986): Surfactant systems for drag reduction: physico-chemical properties and rheological behaviour. - Rheol. Acta, vol.25, No.5, pp.468-486.
• [5] Zakin L. (2002): Review of recent experimental results and evaluation of physical criteria required for surfactant drag reduction. - Proceedings of the 15th International Congress of Chemical and Process Engineering CHISA 2002, Praha, August 25-29, pp. 1-15.