close
Choose Your Site
Global
Social Media
Views: 0 Author: Site Editor Publish Time: 2025-04-14 Origin: Site
Sodium hexametaphosphate is directly related to the glossiness of the coating. Its functions are mainly reflected in the following aspects:
1.Disperse pigments and reduce particle aggregation
As an inorganic dispersant, sodium hexametaphosphate can effectively reduce the surface energy of pigment particles during the coating grinding process and prevent the broken particles from re-aggregating. The more uniform the pigment dispersion, the fewer large particles or agglomeration in the coating system, and the smoother the paint film surface, thereby enhancing the specular reflection (a key factor in determining glossiness).
2. Reduce interfacial tension and stabilize the dispersion system
Sodium hexametaphosphate has surfactant properties, which can reduce the interfacial tension between liquid-liquid and solid-liquid, and help oily liquids form stable emulsions. This stability avoids pigment stratification or flocculation, ensures that the surface of the coating is uniform after film formation, reduces diffuse reflection, and improves gloss.
3. Enhance color performance and indirectly support glossiness
The alkaline aqueous solution of sodium hexametaphosphate can strengthen the charge stabilization mechanism of pigment dispersion, making the pigment color brighter and more transparent. Although the chromaticity is mainly determined by diffuse reflection, the uniformly dispersed pigment can reduce the surface roughness and indirectly improve the glossiness.
4. Comparative experiments support its effect
The gloss of the paint film using sodium hexametaphosphate as a dispersant is significantly better than that without or with other dispersants. Because it can prevent pigment flocculation and cause particles to become coarser, thereby maintaining surface smoothness.
Summarize
Sodium hexametaphosphate significantly improves the gloss of coatings by optimizing pigment dispersion, stabilizing coating systems, and reducing surface defects. In actual application, the dosage needs to be adjusted according to the specific formula, but as a dispersant, its effect on promoting gloss has been widely recognized.
Any requirements,please contact Amy 8618595670422 or email admin@cnzlnm.com.
