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Application Fields of Mica

Jan. 13, 2021


The physical properties of mica mainly depend on the size of the Mica Crystals, the peelability determined by the cleavage and hardness, and the color transparency and elasticity of the mica. In the industrial field, mica is usually processed into mica powder for use. Mica powder has good elasticity and toughness. It is an excellent additive with insulation, high temperature resistance, acid and alkali resistance, corrosion resistance, and strong adhesion.


1.Paint field


Coating mica powder is a new type of functional green and environmentally friendly filler. The unique two-dimensional flake barrier, ultraviolet light shielding, chemical structure stability and other functions can effectively improve the coating film’s permeability resistance, weather resistance, abrasion resistance and resistance Corrosive, in addition, does not contain any radioactive elements, leading the green and environmental protection trend in the coating field. It is widely used in architectural exterior wall coatings, anti-corrosion coatings, powder coatings, high temperature coatings, insulating coatings, waterproof coatings, road marking coatings, anti-radiation coatings and some special coatings, such as marine coatings, spacecraft thermal control coatings and food utensil coatings Wait.


Mica Powder

Mica Powder

2. Cosmetics


Makeup-grade mica has a unique flake structure, silky luster and silky texture, making the powder of cosmetics as light and delicate as silk. The natural texture makes the skin have excellent affinity and crystal clear and beautiful effect, and gives cosmetics the characteristics of soft touch, soft gloss, good affinity and strong skin adhesion. It is the first choice for high-end powdery raw materials in the cosmetics industry. In addition, the crystal transparency of mica powder allows the makeup color to maintain a consistent intensity, and is also suitable for various shades of color. The unique nature of Sericite can also add silky soft luster to cosmetic manufacturing. The products are widely used in many fields such as pressed powder, powder, eye shadow, liquid foundation, blush, powder and so on.


3. Plastic field


Plastic mica powder has the characteristics of high diameter-thickness ratio, high temperature resistance, acid and alkali resistance, and abrasion resistance. It is a natural functional powder filling material. The company selects high-quality mica ore and uses a unique wet-grinding peeling and purification process to process the mica flakes completely. It preserves the unique high-diameter-thickness ratio structure of mica, making it have outstanding reinforcement effects in plastic products, and Endow plastic products with excellent dimensional stability; the high temperature resistance of the product itself also greatly increases the Vicat softening point of the plastic heat distortion thermometer, which is suitable for high-temperature parts and products; compared with glass fiber, mica has a smoother surface. Features such as no warpage and deformation. Products are widely used in the fields of PP, PA, PBT, PET and other plastic modification, functional masterbatch and plastic engineering applications.


4. Electronic field


Mica Powder is a new type of special functional filler, which is suitable for the technical requirements of the copper clad laminate industry. It can be used as an alternative to electronic grade silicon powder, giving the board ideal insulation, rigidity, low expansion rate, drilling processability, heat resistance and process stability, etc. performance. The material is completely chemically inert, and will not degrade or induce reactions even at high temperatures and complex systems. In particular, it has the characteristics of greatly improving drilling efficiency, drilling quality and reducing drill bit wear. It is gradually becoming a popular material in the copper clad laminate industry .


5. Refractory materials


In the field of refractory materials, mica powder has the advantages of stable main mineral content, moderate refractoriness, stable insulation and thermal insulation properties; good clay adhesion, non-expansion, fast drying speed, good plasticity, and strong iron flow resistance.


6. Ceramics field


Mica ceramic is a special engineering material, suitable for the production of heat-resistant materials, insulating materials, high-temperature mechanical parts, etc., and is widely used in the electrical and electronic industries. Mica ceramics are generally made by crystallized glass method or sintering method. However, the flexural strength of the mica ceramics produced by these two processes is not ideal. For example, the flexural strength of mica ceramics produced by the glass crystallization method is generally only in the range of 100-140MPa, and the flexural strength of mica ceramics produced by the sintering method is in the range of 120-130MPa.


In addition, mica powder has a wide range of uses in 5G communications, rubber and other industries. At the same time, with the continuous advancement of technology, mica powder is opening up to more application fields and has a very good development prospect.


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