Paper Title:
Stabilisation of CuO Aqueous Suspensions
  Abstract

Obtaining ceramic bodies with enhanced mechanical properties via colloidal processing requires efficient dispersion of the ceramic powders. In this work, the dispersive effect of three low molecular weight quaternary ammonium hydroxides with different alkyl groups upon stabilisation of CuO aqueous suspensions is studied and compared with that of Tiron, a compound based on the benzene molecule. The purpose is to illustrate the effect of molecular structure, size and charge location upon dispersing effectiveness. To access these parameters, rheological and electrophoretic measurements using both bare and surface charge modified CuO were made. Tiron® revealed to be the most efficient dispersant for CuO in water, rendering viscosity values below 1 Pa⋅s and the highest variation in zeta potential amplitude.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
1369-1373
DOI
10.4028/www.scientific.net/MSF.514-516.1369
Citation
M. Guedes, A. C. Ferro, J. M. F. Ferreira, "Stabilisation of CuO Aqueous Suspensions", Materials Science Forum, Vols. 514-516, pp. 1369-1373, 2006
Online since
May 2006
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Price
$32.00
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