Dynamic Dielectric Response of Concentrated Colloidal Dispersions: Comparison between Theory and Experiment

Bradshaw-Hajek, B. H. (author): Univ S Australia, Sch Math and Stat, Mawson Lakes, SA 5082, Australia

Miklavcic, Stanley J (author): Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan

White, L. R. (author): Univ S Australia, Sch Math and Stat, Mawson Lakes, SA 5082, Australia

(creator_code:org_t)

2009-01-20
2009
English.
In: Langmuir. - : ACS American Chemical Society. - 0743-7463 .- 1520-5827. ; 25:4, s. 1961-1969

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

The cell-model electrokinetic theory of Ahualli et al. Langmuir 2006, 22, 704 1; Ahualli et al. J. Colloid Interface Sci. 2007, 309, 342; and Bradshaw-Hajek et al. Langmuir 2008, 24, 4512 is applied to a dense suspension of charged spherical particles, to exhibit the systems dielectric response to an applied electric field as a function of solids volume fraction. The models predictions of effective permittivity and complex conductivity are favorably compared with published theoretical calculations and experimental measurements on dense colloidal systems. Physical factors governing the volume fraction dependence of the dielectric response are discussed.

By the author/editor: Bradshaw-Hajek, ...; Miklavcic, Stanl ...; White, L. R.

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