There are many classifications of dispersants. Commonly used wetting dispersants are divided into the following five categories: anionic type, cationic type, electrically neutral type, multi-functional group type, and non-ionic type. Among them, anionic types have low prices, and non-ionic types are prone to desorption and movement in coating films.
Jihua Network Dispersant
- The dispersant is adsorbed on the surface of solid particles, making the surface of agglomerated solid particles easy to be wetted.
- For polymer-type dispersants, an adsorption layer is formed on the surface of solid particles, which increases the charge on the surface of solid particles and enhances the repulsive force between particles forming steric hindrance.
- The dispersant forms a bimolecular layer structure on the surface of solid particles. The polar end of the outer dispersant has a strong affinity with water, which increases the degree of wetting of solid particles by water. Solid particles are kept away from each other due to electrostatic repulsion.
- The dispersant makes the system uniform, increases the suspension performance, prevents precipitation, and makes the physical and chemical properties of the entire system consistent.
As mentioned above, the use of dispersants can stably disperse solid particles in liquids.
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