A dispersant with good dispersion property of ultra-fine ground calcium carbonate (FGCC) pigment was prepared by using 2-(2-Biphenylyloxy) ethyl acrylate (OPPEA)
Sodium p-styrene sulfonate (SSS) and Acrylic acid (AA) as polymerized monomers with solution polymerization. The effect of reaction conditions on the settlement volume of FGCCpigment dispersion was discussed with the orthogonal experiment. The effect of reaction conditions on the apparent viscosity and Zeta potential of FGCCpigment dispersion were also investigated by the single factor analysis. The results showed that the optimum reaction conditions are the molar ratio of SSS to OPPEA 1 to 1
the dosage of initiator 2. 5%
the reaction temperature 80℃. The effect of SAPD content on the apparent viscosity of FGCCpigment dispersion was discussed. With the increment of the shear rate
the dispersions possess the shear-thin behavior. When the SAPD content was 8%
the apparent viscosity could be low to 229. 1mPa• s. The particle size distribution is narrow