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Lithopone size distribution is a comprehensive goal

In the commonly used white Yan Guai, the relative density of Lide powder is small. In the white Yan Guai of the same quality, the titanium dioxide has a larger surface area and a higher pigment volume.

The particle size distribution of Lide powder is a comprehensive goal, which seriously affects the function of Lide powder pigments and product application functions. Therefore, the discussion of hiding power and dispersibility can be directly analyzed from the particle size distribution.

Lide powder is a white crystalline powder. It is a mixture of zinc sulfide and barium sulfate. The more zinc sulfide is contained, the stronger the hiding power and the higher the quality. The density is 4.136 ~ 4.34g / cm3, and it is insoluble in water. It is easy to differentiate to generate hydrogen sulfide gas in case of acid, but does not work in case of hydrogen sulfide and alkali solution. After being exposed to ultraviolet rays in sunlight for 6 to 7 hours, it becomes light gray, and it still restores its original color when placed in a dark place. It is easy to be oxidized in the air, and agglomerates and deteriorates when it is wet.

It is mainly used for the coloring of paints, inks, rubbers, etc., and the coloration of art pigments.

Inorganic white pigment, widely used in polyolefins, vinyl resins, ABS resins, polystyrene, polycarbonate, nylon and polyformaldehyde and other plastics and paints, inks, white pigments. It is less effective in polyurethane and amino resins, but less applicable in fluoroplastics. It is also used for the coloring of rubber products, papermaking, varnished cloth, linoleum, leather, watercolor paint, paper, enamel, etc. Used as an adhesive in the production of electric beads.

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