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Title: Effects of additives on the foaming properties of Aculyn 22 and Aculyn 33 polymeric solutions
Authors: Bureiko, A.
Trybala, Anna
Huang, J.
Kovalchuk, Nina
Starov, Victor
Keywords: Foaming polymer solutions
Foam drainage
Bulk viscosity
Surface viscoelasticity
Issue Date: 2014
Publisher: © The Authors. Published by Elsevier B.V
Citation: BUREIKO. A. ... et al., 2014. Effects of additives on the foaming properties of Aculyn 22 and Aculyn 33 polymeric solutions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 460 pp. 265 - 271.
Abstract: Foam stability and foam drainage of aqueous solutions of Aculyn™ 22 and Aculyn™ 33 polymers are considered. Measurements of both bulk and surface rheology of A22 and A33 solutions in the presence of sodium chloride and iso-propanol are performed for the polymer concentrations 1-1.5%. Properties of mixtures of these polymers are investigated. Addition of iso-propanol does not change bulk properties of the A33 solutions but decreases their surface viscoelasticity. Addition of iso-propanol decreases bulk viscosity as well as the bulk and surface viscoelastic moduli of the A22 solutions and moves the region of pronouncing shear thinning behaviour to the smaller shear rates. The last effect depends on the salt concentration. Solutions of both polymers form foams, which are stable during several hours. Characteristic time of foam drainage increases with the polymer concentration and decreases with the salt concentration and iso-propanol content. The decrease in the surface viscoelastic modulus results in faster foam coarsening and lower foam stability.
Description: This is an Open Access Article. It is published by Elsevier under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
Sponsor: This research was supported by Procter & Gamble, USA; PASTA project, European Space Agency; COST projects CM1101 and MP1106 and EPSRC, UK.
Version: Published
DOI: 10.1016/j.colsurfa.2014.02.052
URI: https://dspace.lboro.ac.uk/2134/16505
Publisher Link: http://dx.doi.org/10.1016/j.colsurfa.2014.02.052
ISSN: 0927-7757
Appears in Collections:Published Articles (Chemical Engineering)

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