Water-based copolymer dispersants, i.e., sodium polyacrylic acid-co-2-acrylamide-2-methylpropanesulfonic acid-co-glycerol monomethacrylate (PASG_S), were synthesized for dispersion of praseodymium-doped zirconium silicate pigment in aqueous suspension with polyacrylic acid-co-2-acrylamido-2-methylpropanesulfonic acid (PAS). Effects of different parameters on the dispersion behavior of colloidal particles were investigated via sedimentation tests. The samples were characterized by particle size analysis, Fourier transform infrared spectroscopy, and electrokinetic potential measurement. The interparticle potential energy at different pH values and dispersant types was calculated. The results show that PASG₁ at 3 wt.% addition effectively disperses the colloidal particles in the denser suspension of 35 wt.% at pH 7.0, compared to PAS. Dispersant PASG₁ provides greater steric hindrance and electrostatic repulsive energies than dispersant PAS. The dispersion/aggregation behavior of colloidal particles in the suspension under different conditions was also predicted by a modified population balance model (PBM). The predicted data are similar to the experimental results.

合成了水性共聚物分散剂，即聚丙烯酸钠-co-2-丙烯酰胺-2-甲基丙烷磺酸-甘油单甲基丙烯酸甘油酯（PASG _S），用于将pr掺杂的硅酸锆锆颜料与聚丙烯酸-丙烯酸酯分散在水悬浮液中。共2-丙烯酰胺基-2-甲基丙烷磺酸（PAS）。通过沉降试验研究了不同参数对胶体颗粒分散行为的影响。通过粒度分析，傅立叶变换红外光谱和电动势测量来表征样品。计算了不同pH值和分散剂类型下的粒子间势能。结果表明，PASG ₁与PAS相比，以3重量％的添加量将胶体颗粒有效分散在pH 7.0下35重量％的较稠密悬浮液中。分散剂PASG ₁比分散剂PAS提供更大的空间位阻和静电排斥能。还通过改进的种群平衡模型（PBM）预测了胶体颗粒在悬浮液中在不同条件下的分散/聚集行为。预测数据与实验结果相似。