| CuO suspensions were prepared with various dispersants, viz. sodium salt of styrene/
methacrylic acid copolymer, hexadecyl trimethyl ammonium bromide, sodium dodecyl
sulfonate and polysorbate. Zeta potential analyzer, multiple light scattering
measurement (Turbiscan Lab) and scanning electron microscope were used to study
the zeta potential and suspension stability of CuO aqueous system in the presence of
dispersants. It is shown that sodium salt of styrene/methacrylic acid copolymer is
the most efficient dispersant for CuO suspension, and when the dosage of sodium
salt of styrene/methacrylic acid copolymer is 10 wt% of CuO powders and pH is 9, the
highest suspension stability of CuO suspension is obtained.
[Keywords: CuO suspension, stability, dispersant, multiple light scattering
measurement, pH value] |
