Effect of biopolymer addition on the formulation and properties of an oil-in-water microemulsion

Effect of biopolymer addition on the formulation and properties of an oil-in-water microemulsion In this study stable microemulsions with very low interfacial tension (IFT) were developed. This type of microemulsion has very low viscosity (very similar to that of water). For application of these systems for solubilization and enhanced oil recovery, we studied the effect on the properties of such microemulsions of adding biopolymer to increase viscosity while maintaining IFT as low as possible. Hydroxyethylcellulose and hydrophobically modified hydroxyethylcellulose were selected; their mode of addition to the formulation is discussed. Microemulsion zones were determined by phase diagram investigation in accordance with Winsor’s classification. In addition to spontaneous formation, transparency, and stability, other properties were measured and others calculated to better define the formulated systems and to confirm the presence of microemulsions. Microemulsion droplet number and size both decrease with increasing salt concentration. Depending on emulsion size, rheological measurements confirm that both polysaccharides have a favourable effect on the viscosity of microemulsion without important modification of IFT. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Effect of biopolymer addition on the formulation and properties of an oil-in-water microemulsion

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1691-9
Publisher site
See Article on Publisher Site

Abstract

In this study stable microemulsions with very low interfacial tension (IFT) were developed. This type of microemulsion has very low viscosity (very similar to that of water). For application of these systems for solubilization and enhanced oil recovery, we studied the effect on the properties of such microemulsions of adding biopolymer to increase viscosity while maintaining IFT as low as possible. Hydroxyethylcellulose and hydrophobically modified hydroxyethylcellulose were selected; their mode of addition to the formulation is discussed. Microemulsion zones were determined by phase diagram investigation in accordance with Winsor’s classification. In addition to spontaneous formation, transparency, and stability, other properties were measured and others calculated to better define the formulated systems and to confirm the presence of microemulsions. Microemulsion droplet number and size both decrease with increasing salt concentration. Depending on emulsion size, rheological measurements confirm that both polysaccharides have a favourable effect on the viscosity of microemulsion without important modification of IFT.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 22, 2014

References

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