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Yuan Lei's Little Knowledge | Application Scope of Lip Powder

Release time:

2024-01-29 09:34

lithopone white crystalline powder. It is a mixture of zinc sulfide and barium sulfate. The more zinc sulfide, the stronger the hiding power and the higher the quality. Density 4.136~4.34g/cm3, insoluble in water. When exposed to acid, it is easy to decompose to produce hydrogen sulfide gas, and when exposed to hydrogen sulfide and alkali solution, it does not work. Irradiated by ultraviolet rays in sunlight for 6 to 7 hours, it becomes light gray and still restores its original color in the dark. It is easy to oxidize in the air, and caking and metamorphism after being affected with moisture.

 

 

The use of lide powder

lithopone can be applied to the coloring of paint, ink, rubber, etc. The structure is similar to that of zinc sulfide, containing barium sulfate, and the durability is slightly worse. Poor resistance to chalking. The price is cheap, so it can partially replace titanium dioxide.

1, coatings: mainly used for water-based coatings, mixed paint as primer, a variety of cellulose paint, chlorinated rubber and polyurethane as the base material of alkali-resistant coatings. Also because of its good hiding power, heat resistance, alkali resistance and fluidity, it is particularly effective for the production of color pigments for lacquer cloth, and can also be used in electrophoretic coatings and photoconductive systems.

2. Ink: lithopone has fine particles, loose structure, white color and good hiding power, so it can be well compatible with other color pigments in the ink components.

3, rubber, plastics: the use of lithopone in plastics and pigments can play a role in whitening and improve the strength of products, lithopone is easy to quickly disperse and make the processing technology of such products convenient, especially molding, calendering and flattening operation process. Not only that, but also because of its chemical inertness, but also to adapt to the role of vulcanization in rubber processing.

4, building materials: not only can be used as water-based paint applied to the interior wall of the building, but also can be used as wall paper, floor paint, tables and other plastic veneer filling material.

5, papermaking, painting appliances: as a white opaque pigment for a variety of paper filler, used for chalk, crayons, painting white pigment.

6. Others: It can also be used as a putty material for filling gaps. Artificial stone made of 20% lithopone is added to concrete without affecting its light resistance and coagulation. Applied to fireproof polyester compounds, it can increase impact resistance and electricity resistance. Used for jet engine dyes, heat insulation coatings and insulating recording materials, etc.

Range, lide, coatings, for, pigment, rubber, ink, hiding power, application, white

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