Please use this identifier to cite or link to this item: http://hdl.handle.net/11189/4827
Title: The rheology of binary mixtures of highly concentrated emulsions: Effect of droplet size ratio
Authors: Foudazi, Reza 
Masalov, I 
Malkin, AYA 
Keywords: Highly concentrated emulsions (HCE);Binary mixtures;Fluid drops;Viscosity;Elastic moduli
Issue Date: 2011
Publisher: The Society of Rheology
Abstract: Binary mixtures of highly concentrated emulsions (HCE) with three droplet size ratios and different compositions were prepared. It was found that by the proper selection of droplet size ratio and composition of binary mixtures, the shear modulus,viscosity,yield stress, and yield strain can be dropped lower than mixing rules and even primary HCE. This effect is similar to what is known for dispersions with volume fraction less than 0.7 but has not been described for HCE. For such formulations, the caged mechanism of droplets dynamics is not dominant due to the provided free volume that can be occupied by smaller droplets during flow. This is originated from the increase in maximum closest packing and thus more efficient spatial packing. By studying the scaling behavior of shear modulus and yield stress, the significance of interdroplet interaction was distinguished.
URI: http://dx.doi.org/10.1122/1.4736556
http://hdl.handle.net/11189/4827
Appears in Collections:Eng - Journal articles (DHET subsidised)

Files in This Item:
File Description SizeFormat 
Foudazi_R_Masalova_I_Malkin_AYA_Eng_2011.pdfMain Article871.03 kBAdobe PDFView/Open
Show full item record

Page view(s)

14
Last Week
0
Last month
0
checked on Feb 16, 2019

Download(s)

5
checked on Feb 16, 2019

Google ScholarTM

Check


This item is licensed under a Creative Commons License Creative Commons