Dispersing Agent

Dispersants, commonly used additives in coatings, are widely applied to improve the dispersibility of solid particles such as pigments and fillers, preventing their aggregation or sedimentation in the coating matrix. Pigment and filler particles, due to their strong mutual attraction, easily aggregate in coatings, leading to a decrease in coating uniformity, stability, and final coating quality. Therefore, the use of dispersants is a crucial step.

Dispersants, through the action of their surface-active molecules in the coating, effectively reduce the mutual attraction between particles, maintaining a uniform distribution of particles in the coating matrix, thereby preventing particle aggregation or sedimentation. The principle behind this process lies in the unique molecular structure of dispersants: one part interacts with molecules in the coating matrix, while the other part binds to solid particles, inhibiting particle aggregation through surface activity (such as charge repulsion and steric hindrance), thus effectively maintaining the dispersion stability of the coating.

The use of dispersants can significantly improve the storage stability of pigments/fillers, extend product lifespan, and optimize the rheological and application properties of coatings, ensuring uniform and smooth coating application and reducing undesirable phenomena such as unevenness, bubbling, or clumping during application.

With the deepening of environmental protection concepts, coatings, inks, and adhesives are gradually moving towards water-based applications. Against the backdrop of increasingly stringent global environmental regulations, the demand for water-based dispersants is becoming more and more prominent.ing Agent)