We have examined the use of polyelectrolytes and charged block copolymers as flocculants and stabilisers. The adsorbed layer was characterised by adsorption data and -potential measurements. Furthermore, the stability of Ludox dispersions in the presence of these polymers was investigated. We conclude that charged polymers can be used both as stabilisers and flocculants. The influence that the polymers have depends critically on the polymer charge, the dosage and the molar mass of the polymers. In order to optimise their performance we formulate a number of requirements for the polymers.
|Journal||Colloids and Surfaces. A: Physicochemical and Engineering Aspects|
|Publication status||Published - 1996|