The wetting Dispersing agent MF of the coating not only affects the transparency of the coating, but also affects the leveling property of the coating. The transparency of the coating is generally determined by the moisture dispersion of the coating. The transparency of the coating is a characteristic of the coating. The higher the transparency, the easier it is to see the bottom layer. The higher the covering force, the stronger the bottom covering force. Because the pigment particles are more stable under the action of wet dispersant dispersant, the leveling property is increased, which can improve Newton’s fluid characteristics and is beneficial to the leveling property.
Wetting Dispersing agent MF improves transparency by affecting the particle size distribution of pigments (more uniform and narrower). For titanium dioxide, high refractive index and large particles can effectively reflect and refract light of various wavelengths. Adding polymer Dispersing agent MF can improve the surface area (reduce the polymer, reduce the particle size) and further improve the coverage. For transparent pigments, polymer dispersants can improve particle size distribution and allow more light to pass through (increasing transparency). The amount of light reflected and passed through the surface determines the coverage or transparency of the coating. The type of paint and the dispersion of it all make a difference. Due to the influence of refractive index and particle size, covering pigment has a greater effect on reflected light. Therefore, we can improve transparency by adding coating additives.
Leveling is the ability of a coating to spread over a particular surface. Coating surface defects are usually caused by surface tension and occur relatively quickly. Brush marks on decorative coatings are also usually caused by inadequate leveling. Ideal leveling behavior can be explained by Newtonian mechanics. But after the pigment is introduced into the system, it changes. This is because particles are susceptible to thixotropy and pseudoplasticity due to chemical bonds and physical interactions. Therefore, we can improve the leveling property by adding coating additives.
Coating wetting dispersant is suitable for coating, pigment, color paste and other industrial coatings. As a common additive, coating wetting dispersant has great influence on improving the transparency and flatness of coating. The amount of coating wetting dispersant is small, but it is necessary in the coating production process. Coating wetting dispersants affect the transparency and smoothness of the coating, so it is very important to add wetting dispersants to the coating.
Post time: Jun-11-2022