The percolation mechanism of surfactant-free microemulsions witnessed by the conductivity measurement
Abstract
Purpose
This paper aims to report the conductivity measurement of ten different surfactant-free microemulsions (SFMEs)
Design/methodology/approach
The variations of electrical conductivity as a function of water volume fraction are examined at one constant alcohol (or DMF, ethyl lactate, γ-valerolactone)/water, alcohol (or DMF, ethyl lactate, γ-valerolactone)/oil volume ratios for each sample.
Findings
Most of the results are consistent with percolation character. The conductive mechanism of these SFMEs is discussed by the percolation model, and it is found that it might be described with the static percolation model below the percolation threshold.
Originality/value
Our report gives a systematic research on the percolation mechanism of as many species of SFMEs as possible by the theoretical models
Keywords
Acknowledgements
This work was supported by the National Science Foundation of China (Nos. 21403051, 21206026), Natural Science Foundation of Hebei Province of China (Nos. B2013402060), the Scientific Research Foundation of Education Department of Hebei Province, China (No. Q2012014), the Doctoral Starting up Foundation of Hebei University of Engineering, China (No. 20120003). Hebei Provincial Higher School Science and Technology Research Project of China (No. QN2014120), the Science and Technology Foundation of Universities of Hebei Province (No. ZD2015113).
Citation
Li, Z., Liu, X., Lian, Y., Xie, J., Gao, X. and Chang, T. (2016), "The percolation mechanism of surfactant-free microemulsions witnessed by the conductivity measurement", World Journal of Engineering, Vol. 13 No. 2, pp. 142-148. https://doi.org/10.1108/WJE-04-2016-019
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited