Polymers are used in ceramic processing for a variety of purposes, and the effect on the ceramic slurry will depend on their adsorption behaviour. Zeta potential can be used to investigate the competitive absorption of mixtures of polymers.
The effect of PEG and APMA on the zeta potential of the alumina samples was studied by preparing dispersions of the ceramic powder in deionized water, adjusting the pH to the desired value and then adding PEG and/or APMA solution of the desired concentration. The samples were allowed to equilibrate for 5 hours prior to the zeta potential measurements.
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