Characteristics of wetting dispersants

Wetting usually refers to the spreading of a liquid on a solid surface. It is more focused on reducing surface tension, which is a brief process. Dispersion refers to the mechanical process of pigment particles dissociating from each other. In paint production, it refers to the stable existence of pigment particles in the aqueous phase as small particles, uniformly distributed, and no longer re aggregated, which is a relatively long process.

Generally, wetting agents are substances that can make solid materials more easily wetted by water. By reducing its surface tension or interfacial tension, water can unfold on the surface of solid materials or penetrate their surfaces, thereby wetting the solid materials.
A dispersant is an interfacial active agent that exhibits both oleophilic and hydrophilic properties within a molecule. It can uniformly disperse solid particles of inorganic and organic pigments that are difficult to dissolve in liquids, while also preventing the settling and agglomeration of solid particles, forming a stable suspension.

Wetting agents, like dispersants, have a dispersing effect on pigments. When used together, the two can have a synergistic effect, allowing the pigment particles to be stably dispersed in a more delicate form in the coating.