Electroacoustic and ultrasonic attenuation measurements of droplet size and ζ-potential of alkane-in-water emulsions : effects of oil solubility and composition
作者： Alex M. Djerdjev , James K. Beattie
DOI: 10.1039/B807623E
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摘要: The effects of oil solubility and composition on the zeta potential drop size oil-in-water emulsions stabilised by sodium dodecyl sulfate (SDS) were studied electroacoustics ultrasonic attenuation. ζ-potentials toluene alkane found to decrease (be less negative) as water dispersed phase increased. also depended mixed oils, becoming more negative with increasing mole fraction an insoluble (hexadecane). As increased, conductance within Stern layer relative diffuse (Kis/Kds) which is interpreted due displacement shear plane further into layer. was calculated increase from ∼0.50 nm at oil–water interface (hexadecane) ∼2.5 a soluble toluene. lowering oils ascribed shift layer, resulting in interface. total surface related log decreased ∼7 × 10−9 Ω−1 3 hexadecane toluene, respectively. lower attributed reduction dielectric constant inside plane, caused presence oil.
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sci-hub.se 参考文章(41)
Monika Gepert, Edward Zorębski, Agnieszka Leszczyńska, Is Flory's model the best tool for studying the thermodynamic properties of any kind of binary mixtures? A critical study of selected binary systems of hydrocarbons Fluid Phase Equilibria. ,vol. 233, pp. 157- 169 ,(2005) , 10.1016/J.FLUID.2005.03.013
H. L. Finke, M. E. Gross, Guy Waddington, H. M. Huffman, Low-temperature Thermal Data for the Nine Normal Paraffin Hydrocarbons from Octane to Hexadecane Journal of the American Chemical Society. ,vol. 76, pp. 333- 341 ,(1954) , 10.1021/JA01631A005
Andrzej Ma̧czyński, Barbara Wiśniewska-Gocłowska, Marian Góral, Recommended Liquid–Liquid Equilibrium Data. Part 1. Binary Alkane–Water Systems Journal of Physical and Chemical Reference Data. ,vol. 33, pp. 549- 577 ,(2004) , 10.1063/1.1643922
P. Taylor, Ostwald ripening in emulsions Advances in Colloid and Interface Science. ,vol. 75, pp. 107- 163 ,(1998) , 10.1016/S0001-8686(98)00035-9
Alexey Kabalnov, Ostwald Ripening and Related Phenomena Journal of Dispersion Science and Technology. ,vol. 22, pp. 1- 12 ,(2001) , 10.1081/DIS-100102675
J. J. Bikerman, Electrokinetic equations and surface conductance. A survey of the diffuse double layer theory of colloidal solutions Transactions of the Faraday Society. ,vol. 35, pp. 154- 160 ,(1940) , 10.1039/TF9403500154
Józef Stachurski, MieczysŁaw MichaŁek, The Effect of the ζ Potential on the Stability of a Non-Polar Oil-in-Water Emulsion Journal of Colloid and Interface Science. ,vol. 184, pp. 433- 436 ,(1996) , 10.1006/JCIS.1996.0637
Dharam V. S. Jain, Vijay K. Gombar, Correlation between topological features and molar volumes of n-alkanes and excess volumes of their binary mixtures Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases. ,vol. 75, pp. 1132- 1141 ,(1979) , 10.1039/F19797501132
Dinghai Huang, Sindee L. Simon, Gregory B. McKenna, Chain length dependence of the thermodynamic properties of linear and cyclic alkanes and polymers The Journal of Chemical Physics. ,vol. 122, pp. 084907- 084907 ,(2005) , 10.1063/1.1852453
L.W. Anson, R.C. Chivers, Thermal effects in the attenuation of ultrasound in dilute suspensions for low values of acoustic radius Ultrasonics. ,vol. 28, pp. 16- 26 ,(1990) , 10.1016/0041-624X(80)90003-7