Abstract
Alumina microparticles were synthesized by sol-gel method with aluminum isopropoxide as raw material, octanol and acetonitrile as solvent. The influence of pH value and three kinds of dispersants on the alumina suspension stability were discussed in water system. We find that The optimal pH value range of application for alumina suspension is 4-5 or 10-11, which has the biggest absolute value of Zeta potential, and alumina suspension has a good dispersion when Span-20 used as dispersant.
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