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Floc Strength Characterization Technique. An Insight into Silica Aggregation

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Date

2004

Authors

Hermawan, Mandalena
Bushell, G
Craig, Vincent
Teoh, Wey Yang
Amal, Rose

Journal Title

Journal ISSN

Volume Title

Publisher

American Chemical Society

Abstract

This paper tests an approach to the estimation of relative particle bond strength based on the nondimensional floc and aggregation factors. The strength of flocs formed by aggregating nanosized silica particles with the addition of potassium chloride (KCl) or cationic surfactants, alkyltrimethylammonium bromide (mixture of CTAB, DTAB, and MTAB) was analyzed. The bonding force of the flocs formed in surfactant compared to that formed in the KCl system was estimated using the new dimensional analysis approach. This force ratio was then compared to that obtained by atomic force microscopy.

Description

Keywords

Keywords: Adhesion; Atomic force microscopy; Dehydration; Energy dissipation; Flocculation; Fractals; Surface active agents; Suspensions (fluids); Floc strength; Fractal aggregates; Interparticle bonding; Solid-liquid separation; Silica; Adhesion; Dehydration; Floc

Citation

URI

http://hdl.handle.net/1885/77801

Collections

ANU Research Publications

Source

Langmuir

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1021/la049651p

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