Basic principle of dispersant
1. Adsorbed on the surface of solid particles to reduce the interfacial tension between liquid-liquid or solid-liquid. The surface of the agglomerated solid particles is easily wetted.
2. A polymeric dispersant forms an adsorption layer on the surface of the solid particles to increase the charge on the surface of the solid particles and to increase the reaction between the particles forming the steric hindrance.
3. The surface of the solid particles forms a bilayer structure, and the polar end of the outer dispersant has a strong affinity with water, which increases the degree to which the solid particles are wetted by water. The solid particles are separated by electrostatic repulsion.
4. Make the system uniform, increase the suspension performance, and not precipitate, so that the whole system has the same physical properties.