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Dispersant (Dispersant) is an interface active agent with two opposite properties, both lipophilic and hydrophilic. The solid and liquid particles that are difficult to dissolve in liquid, can also prevent the settlement and condensation of the particles and form the amphiphilic reagent needed for the stable suspension.

The function of dispersant is to use wetting dispersant to reduce the time and energy needed to complete the dispersion process, stabilize the dispersed pigment dispersion, modify the surface properties of pigment particles, and adjust the motion of pigment particles. It is embodied in the following aspects:

1. improve the luster, increase the effect of leveling luster actually the most important depends on the coating surface of the light scattering (that is, a certain flatness can be., Of course, need to decide whether smooth enough, not only consider the number of native particles, shape, and consider their combination), when the particle size is less than the incident light (this value is uncertain), performance for refraction light, luster will not improve, the same cover force rely on scattering provide main cover force will not increase (except carbon black mainly by absorbing light, organic pigment forget). Note: the incident light refers to the range of visible light is not good; but note that the decrease of the original number of particles is to reduce the structural viscosity, but the increase of the surface will reduce the number of free resin, whether there is a balance point, but the general powder coating is not the thinner the better.

2. prevent floating color hair flowers.

3. improve the color force to pay attention to the color force in the automatic color adjustment system is not the higher the better.

4. Reduce the viscosity and increase the amount of pigment.

5. reduce flocculation is like this, but the thinner the particle surface energy, the higher, the higher the adsorption strength of the dispersant, but the adsorption strength of the dispersant may cause adverse to the performance of the coating film.

6. The reason for increasing storage stability is similar. Once the stability strength is not enough, the storage stability becomes worse (of course, from your picture).

7. increase color display, increase color saturation, increase transparency (organic pigment) or covering force (inorganic pigment).

HD605 wetting dispersant helps to moisten and stabilize the pigment, prevent floating color and pigment settlement, maintaining stable pigment covering force and color strength during storage, while ensuring the maximum amount of color and the minimum grinding steps. Because these additives can reduce the viscosity and increase to the highest pigment concentration when dispersed, the coating and pigment concentrate slurry produced are more cost-effective. HD605 is recommended for the production of waterborne pigments. For corrosion-resistant waterborne coatings, it is also the preferred product. Can meet the highest optical and rheological energy requirements. HD605 series is the existing market standard product without ethoxyalkyl phenol for both solvent type and waterborne formula. In UV system, HD605 is suitable for all pigments and the product does not contain acetoxyalkyl phenol.