Introduction to the role of disperse agent

Introduction to the role of disperse agent

The function of the disperse agent is to use the wetting and dispersing agent to reduce the time and energy required to complete the dispersion process, stabilize the dispersed pigment dispersion, modify the surface properties of the pigment particles, and adjust the mobility of the pigment particles. It is embodied in the following aspects:

1. Improve the gloss and increase the leveling effect. The actual gloss is mainly determined by the scattering of light on the surface of the coating (that is, a certain level of flatness is enough.

2. Prevent floating color and blooming. Increasing tinting strength Note that tinting strength is not the higher the better in the automatic tinting system.

3. Reduce viscosity and increase pigment loading.

4. This is how to reduce flocculation, but the finer the particle, the higher the surface energy, and the higher the adsorption strength of the dispersant is needed, but the dispersant with too high adsorption strength may cause disadvantages to the performance of the coating film.

5. In fact, the reasons for increasing storage stability are similar to the above. Once the stability of the dispersant is not strong enough, the storage stability will deteriorate instead.

6. Increase color development, increase color saturation, increase transparency or hiding power.