How Sodium Hexametaphosphate (SHMP) Solves Pigment Instability & Re-flocculation | Chuandong Chemical
Pigments bring rich, bright colors to products widely applied in interior decoration, construction and many other sectors. During pigment dispersion, stabilizing depolymerized pigment particles is critical. Without effective treatment, pigments tend to re-flocculate during storage and application, resulting in poor finished quality. Sodium hexametaphosphate (SHMP) delivers excellent dispersion performance for pigments, mitigating particle aggregation risks. In pigment dispersion systems, pigment stability is mainly realized via electrostatic stabilization and steric protection. Surfactants and inorganic dispersants are commonly used for this purpose. SHMP aqueous solution presents alkaline properties, offering strong medium dispersion capacity and prominent viscosity-lowering effects, making it an ideal inorganic viscosity reducer. SHMP reduces system viscosity effectively. After hydrolysis, phosphate ions (PO₄³⁻) readily adsorb onto the positively charged edge...