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TitleIn situ USAXS measurements of titania colloidal paint films during the drying process
Publication TypeJournal Article
Year of Publication2009
AuthorsIngham, B., Dickie S., Nanjo H., and Toney M.F.
JournalJournal of Colloid and Interface Science
Pagination612 - 615
Date Published2009
ISSN00219797 (ISSN)
KeywordsAcrylic emulsions, article, controlled study, Dewatering, dispersion, Dried films, Drying process, Emulsification, emulsion, film, Flocculation, In-situ, Inter-particle interaction, Paint, Paint films, Paint systems, Particle scattering, polymer, priority journal, Real time systems, Scanning electron microscopy, Scanning electron microscopy image, Scattering, Small-angle X-ray scattering, Synchrotrons, Titania, titanium dioxide, Titanium oxides, Ultra-small, USAXS, X ray crystallography, X ray scattering
AbstractReal-time ultra-small-angle X-ray scattering (USAXS) was used to follow the flocculation of titania particles in two paint systems as the paint films were drying. The inter-particle scattering was extracted by comparing the time series with diluted titania dispersion (having negligible inter-particle interaction). The paint system with pigment affinic groups showed considerably less flocculation than a pure acrylic emulsion. The results were confirmed by scanning electron microscopy (SEM) images of the dried film. The likely cause of this difference and utility of USAXS for such measurements are discussed. © 2009 Elsevier Inc. All rights reserved.

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