Interaction forces between silica surfaces in aqueous solutions of poly(ethylene oxide)s

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Publication Type Book Chapter
School or College College of Mines & Earth Sciences
Department Metallurgical Engineering
Creator Miller, Jan D.; Nalaskowski, Jakub
Other Author Paruchuri, V. K.
Title Interaction forces between silica surfaces in aqueous solutions of poly(ethylene oxide)s
Date 2003
Description An understanding of forces responsible for the stability of dispersions of colloidal particles when interacting with each other in aqueous solutions is of great interest academically and industrially. When water-soluble polymers are adsorbed onto colloidal particles, various effects on the stability of their suspensions can be expected ranging from steric stabilization to bridging flocculation. The possibility of detailed characterization of such systems using direct measurements of interaction forces between particles can help in further improvement of existing technologies of solid-liquid separation. An atomic force microscope (AFM) colloidal probe was used to measure the interaction forces between a silica sphere and a silica substrate in the presence of water-soluble polymers. Poly(ethylene oxide) (PEO) with three different molecular weights (7,000, 43,000, and 63,000), each with a very narrow molecular weight distribution, were used in this study. The interaction forces measured with the AFM over an extended time scale are discussed in terms of the adsorption kinetics measured through in-situ FTIR/IRS measurements.
Type Text
Publisher Society for Mining, Metallurgy, and Exploration
First Page 151
Last Page 164
Subject Water-soluble polymers; Colloidal particles; Interaction forces
Subject LCSH Polymers; Colloids
Language eng
Bibliographic Citation Paruchuri, V.K., Nalaskowski, J., & Miller, J. D. (2003). Interaction forces between silica surfaces in aqueous solutions of poly(ethylene oxide)s in Kellar, J. J., Herpfer, M. A. & Moudgil, B. M., eds. Functional Fillers and Nanoscale Minerals. 151-64.
Format Medium application/pdf
Format Extent 4,317,038 Bytes
Identifier ir-main,4746
ARK ark:/87278/s6dv239w
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 705182
Reference URL https://collections.lib.utah.edu/ark:/87278/s6dv239w
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