How can dispersants prevent color fading and discoloration?

Dispersants have various functions in industrial production, and many chemical manufacturers use dispersants. So, what are the functions of dispersants? Today, the editor of Jianyi Chemical will talk to you about:

1、 Preventing color fading and discoloration is one of the well-known functions of dispersants. To prevent floating color and discoloration, suitable dispersants should be used, which can improve or eliminate floating color and discoloration in both the tank and the paint layer. There are also some dispersants, which are controlled flocculants with certain carboxyl groups in their molecular structure chains. While they are compatible with the color paste, they also form hydrogen bonds with each other, thereby stabilizing the color paste particles and preventing floating and blooming.

2、 Improving the dispersion and stability of the coloring paste will significantly enhance its coloring power.

3、 Reducing viscosity and increasing the loading capacity of the color paste by selecting suitable dispersants will result in a sharp decrease in the viscosity of the resulting color paste. That can increase the loading capacity of the color paste and improve productivity.

4、 Many people conduct pilot tests when evaluating dispersants to reduce flocculation, improve workability and usability. If the dispersant is not properly matched, significant color deviation will occur between the areas that have been studied and those that have not been studied, and the coloring power of the flocculated color paste will decrease, which will bring difficulties to color matching and coating application. By using a flow plate experiment, the coagulation of the color paste can also be observed.