Rheological spectroscopy of concentrated colloidal dispersions

Williams, P.R.; Williams, D.J.A.; Williams, R.L.

Abstract

A new instrument, the virtual gap rheometer (VGR) for the determination of dynamic shear moduli (and mechanical relaxation spectra therefrom) at frequencies above 100 Hz is described. Several features of the VGR which make it particularly suited to the study of concentrated viscoelastic colloidal dispersions are discussed. The underlying theory is presented and the instrument's operation illustrated with results obtained on aqueous dispersions of a model clay colloid.

Citation

Williams, P., Williams, D., & Williams, R. (1993). Rheological spectroscopy of concentrated colloidal dispersions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 77(1), 75-79. https://doi.org/10.1016/0927-7757%2893%2980101-j

• Journal Article Type: Article
• Acceptance Date: Feb 10, 1993
• Publication Date: 1993-09
• Deposit Date: Jul 26, 2016
• Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects
• Print ISSN: 0927-7757
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 77
• Issue: 1
• Pages: 75-79
• DOI: https://doi.org/10.1016/0927-7757%2893%2980101-j
• Keywords: Concentrated dispersions, rheological spectroscopy, virtual gap rheometer,
• Public URL: http://researchrepository.napier.ac.uk/Output/315516
• Related Public URLs: http://www.sciencedirect.com/science/article/pii/092777579380101J