Epoxy pearl pigments are synthetic colorants designed specifically for use in epoxy resins. Unlike traditional pigments that provide a solid color, pearl pigments impart a dynamic spectrum of colors that change with the angle of light, resembling the natural luster of pearls. This multi-dimensional effect is achieved through a special coating process that allows light to reflect off the different layers within the pigment particle. The result is a rich, iridescent finish that can make any surface captivating.

In addition to its thermal properties, phlogopite mica is known for its impressive electrical insulating capabilities. This characteristic is invaluable in the electronics industry, where it is used in the production of capacitors and insulators. The mineral’s low dielectric constant ensures minimal energy loss during electrical transmission, thereby improving the efficiency of electronic devices. As technology advances, the demand for such materials continues to rise, solidifying phlogopite mica’s role in modern industry.

Layer upon layer of mica

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.

It is an indispensable and important raw material in the fields of electric heating equipment, wire and cable, aerospace and so on.

5. Food and Beverage Industry

What is Mica Powder?

3. Synthetic Alternatives

1. اختيار المسحوق يمكن العثور على مساحيق الميكا في متاجر الحرف اليدوية أو عبر الإنترنت. من المهم اختيار نوعية عالية الجودة لضمان الحصول على ألوان زاهية ونتائج جيدة.

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.

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