Synthetic 120 mesh :large particle size, with pearl shining effect.

In the realm of mineral-based industries, mica stands out due to its diverse applications, ranging from electronics to cosmetics. A mica factory functions as a pivotal link in this chain, transforming raw mica into high-value products integral to various sectors. Through examining a mica factory's operations and contributions, we can better appreciate its role and significance.

Mica is a very common rock-forming mineral, widely distributed in crystalline rocks. Its general chemical formula can be expressed as:

Natural mica powder and synthetic mica powder also have great differences in electrical insulation, mechanical properties, chemical stability, application range and cost. Natural mica powder has good electrical insulation, but the volume resistivity is lower than that of synthetic mica. Synthetic mica powder has better electrical insulation properties, high volume resistivity and stable dielectric constant, and is suitable for high performance electrical insulation materials. The hardness of natural mica powder is relatively low (2-3), and it has good elasticity and peeling property. The hardness of synthetic mica powder is higher (between 3 and 4), and the tensile strength and compressive strength are better than that of natural mica powder. Natural mica powder is stable in acid-base solution, but it is easy to decompose at high temperature. Synthetic mica powder is stable to acid and base at room temperature, but will be slowly corroded by sulfuric acid above 300℃. Better thermal stability, not easy to release gas. Natural mica powder is widely used in electrical appliances, welding rods, rubber, plastics, paper making, paint and other fields. Synthetic mica powder is mainly used in high-end electrical insulation materials, aviation, aerospace, national defense industry and other high-tech fields. Because synthetic mica powder needs to be produced through complex chemical processes, its production cost is usually higher than that of natural mica powder. Therefore, in the market, the price of synthetic mica powder is often higher than that of natural mica powder. However, with the continuous progress of production technology and the gradual emergence of scale effects, the price of synthetic mica powder is expected to gradually decrease.

A group of parallel cleavages can be seen in a photograph of biomica under orthogonal polarized (left) and single polarized (right) mirrors.

Synthetic 120 mesh :large particle size, with pearl shining effect.

Take pearlescent pigments as an example, pearlescent pigments are a class of pigments with pearl luster, which are deposited on the substrate (generally natural mica, synthetic mica, glass sheet and other sheet-like materials) above a layer or alternately deposited multiple layers of metal oxides or non-metallic oxides and formed a flat sandwich body with a structure similar to sandwich. Due to the difference in refractive index between the substrate and the oxide deposited on its surface and each oxide, when the light shines on the surface of the pearlescent pigment, the incident light will be refracted and reflected at the interface of each layer of the pearlescent pigment, and the color of the pearlescent pigment that people see is the result of the superposition of light after multiple refractions and reflections of the light, that is, the interference phenomenon of light.

Mica is a fascinating and versatile mineral that has been utilized by various industries for centuries due to its unique properties. This silicate mineral is known for its ability to be split into thin sheets, making it an excellent material for diverse applications. Found predominantly in metamorphic rocks, mica comes in several varieties, including muscovite and phlogopite, each with specific traits making them suitable for different uses. Let’s explore some of the primary uses of mica and its significance in various sectors.

Furthermore, while mica itself is not toxic, some individuals may experience allergic reactions to certain pigments or additives used alongside mica. For this reason, it is essential to read labels carefully, especially for those with sensitive skin or known allergies.