Lingshou County Wancheng Mineral Co,Ltd

Muscovite

1. Characteristics and uses of mica powder

Mica has muscovite, biotite, phlogopite, lepidolite and other types. Muscovite is the most common mica.

Mica has high insulation performance, heat resistance, acid resistance, alkali corrosion resistance, and small thermal expansion coefficient. No matter how broken it is, it is in the form of flakes, with good elasticity and toughness. The mica powder has a large diameter-to-thickness ratio, good sliding properties, strong covering performance and strong adhesion.

Wancheng Mica powder is widely used in the fields of insulation, heat insulation, paints, coatings, pigments, fire protection, plastics, rubber, ceramics, oil drilling, welding electrodes, cosmetics, aerospace, etc.

2, Mica chemical composition

3, The physical properties of Muscovite

4. Main product specifications

1, Wet ground mica powder

2, Dry grinding mica

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Phlogopite

Phlogopite is divided into dark phlogopite ( brown or green in various shades ) and light phlogopite ( pale yellow in various shades ). Light-colored phlogopite is transparent and has glass luster; dark-colored phlogopite is translucent. Glass luster to semi-metal luster, the cleavage surface is pearl luster. The sheet is elastic. Hardness 2─3. The proportion is  conductive. Colorless or brownish yellow under microscope transmission light. The main performance of phlogopite is slightly inferior to muscovite, but it has high heat resistance and is a good heat-resistant insulating material.

chemical composition:

Product main specifications: 10 mesh, 20 mesh, 40 mesh, 60 mesh, 100 mesh, 200 mesh, 325 mesh, etc.

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Sericite

1. Main properties: Sericiteis a new type of industrial mineral with a layered structure, which is a subspecies of muscovite in the mica family with extremely fine scales. The density is / cm 3, the hardness is , and the diameter-thickness ratio is> 50. It can be split into very thin flakes, with silk luster and smooth feeling, full of elasticity, flexibility, acid and alkali resistance, strong electrical insulation, heat resistance (up to 600 o C), and low coefficient of thermal expansion, and The surface has strong UV resistance, good abrasion resistance and wear resistance. The elastic modulus is 1505-2134MPa, the tensile strength is 170-360MPa, the shear strength is 215-302MPa, and the thermal conductivity is . (MK) -1. The main component is a potassium silicate aluminosilicate mineral, which is silver-white or grayish-white, in the form of fine scales. Its molecular formula is (H 2 KAl 3 (SiC4) 3. The mineral composition is relatively simple and the content of toxic elements is extremely low, No radioactive elements can be used as green materials.   Wanchengis an mica powder manufacturer.
   　      
2. Physical and chemical indexes of sericite powder

3. Main specifications: 100 mesh, 200 mesh, 325 mesh, 400 mesh, 600 mesh, 800 mesh, 1250 mesh, 2000 mesh, etc.

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Biotite

Biotite mainly occurs in metamorphic rocks, granite and other rocks. The color of biotite is from black to brown or green, with glass luster. The shape is plate and column. In recent years, biotite has been widely used in stone paint and other decorative coatings.  

The single crystal of wancheng biotite is short columnar and plate-shaped, with a hexagonal cross-section and scaly aggregate. Brown or black. The color becomes darker with the increase of iron content. Other optical and mechanical properties are similar to those of muscovite, with a relative density of .

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