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Views: 0 Author: Site Editor Publish Time: 2023-08-02 Origin: Site
Paint makes life more colorful, and the color of paint is also brighter. It is widely used in home decoration, construction and other places.
Therefore, in the process of pigment dispersion, stabilizing the disintegrated pigment particles is also a very important part. Otherwise, the paint will re-solidify during storage and construction, and the paint quality will decline. Sodium hexametaphosphate has a good dispersing effect on pigments, increases the surface of pigment particles, and tends to aggregate with each other.
SHMP
Sodium Hexametaphosphate
The dispersion system of the paint is mainly stabilized by two mechanisms of charge stabilization and steric protection. Commonly used is to add some surfactants or inorganic dispersants. The aqueous solution of sodium hexametaphosphate is alkaline, so it has a stronger dispersion effect on the dispersion medium and a more obvious viscosity-reducing effect, so it is more suitable for use as a binder.
Sodium hexametaphosphate is easy to adsorb with the positively charged edge of the PO43-protective rubber end after phosphate hydrolysis to form a negatively charged edge, so it has a good viscosity-reducing effect on the dispersion medium. The surface and the end of the wafer are negatively charged, and the chips are mutually exclusive. It becomes a low-viscosity, high-uric-acid stable suspension in aqueous media, and the viscosity drops sharply.
Therefore, the adhesion mechanism of sodium hexametaphosphate is the adhesive after absorption, which is closely related to the properties of sodium hexametaphosphate itself. The molecular formula of sodium hexametaphosphate is (NaPO3)6, which constitutes heterogeneous sodium polyphosphate. The anion that constitutes sodium hexametaphosphate has a high molecular weight. Generally, the number of PO3 genes reaches 30 to 90, forming a long chain.
Inorganic salt sodium hexametaphosphate can reduce the dispersed particle size of protective adhesive particles in water, reduce the interaction between particles, significantly reduce viscosity and improve fluidity.
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