The dispersant molecule contains an anchor group portion and a stabilizing portion. The function of the anchoring group is to provide a strong enough binding force between the pigment and the filler particles, and the dispersant molecules will not fall off the particle surface, which is the prerequisite for the dispersant to function. Part of the stabilization function is to stabilize pigment aggregates dispersed by mechanical forces through electrostatic repulsion and steric hindrance in the liquid phase. Granules to prevent agglomeration. In organic solvents, the stable part of the dispersant absorbs the dispersed pigment particles stably through steric hindrance. When the distance between the dispersant particles is smaller than the size of the solvated chains, the solvated chains will squeeze each other and the entropy will decrease. Stable immobilized ionic groups in water will ionize and an electric double layer will form around the particles. Electrostatic repulsion will prevent particle agglomeration. If the stabilizing effect is a non-ionic polyether, the polyether stabilizes dispersed pigment particles through steric hindrance.
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