luster

This is a measure of the properties of the film, the higher the gloss, the stronger the reflection.

For the gloss of high quality coatings, particles cannot be greater than 5 microns, the maximum is 3 microns. Ink should not exceed 1 micron. Large particles in coatings either cannot be dispersed effectively, flocculate, or stimulate crystallization during preparation. Polymer dispersants can also reduce the formation of large particles due to flocculation and improve luster.

transparency

It is a property of the film that the more transparent it is, the easier it is to see the bottom layer. The higher the hiding power, the stronger the hiding power of the bottom layer.

The amount of light reflected and passed off the surface determines the coating's coverage or transparency. The type of pigment and the degree of dispersion have an effect on this. Obscurative pigments have greater influence on reflected light due to the influence of refractive index and particle size. Polymer dispersants improve transparency by affecting the pigment's particle size distribution (more uniform and narrower). For titanium dioxide, high refractive index and large particles can effectively reflect and refract various wavelengths of light. The addition of polymer dispersants can increase the surface area (reducing aggregates, reducing particle size), which can further improve the covering power. For transparent pigments, polymer dispersants improve particle size distribution to allow more light to pass through (increasing transparency).

compatible

Compatibility is important because good compatibility allows paint manufacturers to produce dispersion systems for many different classes of resin products. Polymer dispersants can increase pigment concentration, not only increasing production, but also reducing potential media incompatibility problems from the ground colorant to the final product. Therefore, especially under the condition of using highly compatible resins, polymer dispersants expand the range of use of base coatings. This is very important for the production of mixed coloring coatings.

Flow/leveling

Leveling is the ability of a paint to spread over a particular surface. Coating surface defects are usually caused by surface tension and occur relatively quickly. Decorative paint brush marks are usually caused by insufficient leveling. The ideal flattening behavior can be explained by Newtonian mechanics. But when the pigment is introduced into the system, it changes. This is because particles are affected by chemical bonds and physical interactions, and are very easy to produce thixotropy and pseudoplasticity. Because the pigment particles are more stable under the action of the polymer dispersant, the leveling ability is increased, so the Newtonian fluid characteristics can be improved. Convexity is good for you.

yield

Output refers to the amount of paint and ink produced in a process. Dispersant can increase pigment concentration and increase paint yield. Appropriate addition of polymer dispersant, can reduce the viscosity, increase the pigment content of grinding color paste, so as to increase the yield. Because more pigment can be dispersed in a given time, more can be produced with the same weight of grinding paste. Significantly faster dispersion can also increase production. Increased production reduces machine wear and tear, reduces energy consumption, and in particular reduces labor and fixed costs per kilogram of final product.

Coloring strength

The coloring strength of the paint indicates the intensity of the color hue on the applied surface. Increasing the strength of the paint will make it look brighter and more attractive to customers. By balancing various opposing factors, the optimum grinding conditions can be created. Reducing the average particle size of pigment can improve the coloring strength. Increasing the content of pigment in the grinding paste will increase the collision of particles, improve the crushing rate of pigment, but also increase the viscosity, reduce the kinetic energy of grinding, so that the crushing ability of abrasive balls or beads on the pigment is reduced. The use of polymer dispersants can alter this change. The use of dispersants allows higher pigment concentrations to be ground, causing particles to break more quickly and preventing viscosity from rising during grinding. Finally, the dispersant increases the stability of the collision of finer particles without flocculation, thus giving full play to its inherent coloring strength.