Abstract
The waterborne ultrafine pigment C.I.P.B15∶1 dispersion was prepared with copolymer by the phase separation method. The shape and size distribution of ultrafine pigment particles were investigated, and the effects of pH value, ion intensity, and alcohols on ξ‐potentials were analyzed. The results showed that stick‐shaped particles with narrow distribution were obtained, ξ‐potentials obviously increased with increasing of pH value in the range of 5–9, and when the pH value was at 8–9, the ξ‐potential reached its maximum. Moreover ξ‐potentials decreased with increasing ion intensity, decreased by adding the alcohols into the dispersion, and also decreased with increase in the dosage of Triton TX‐10.
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