Mica Mica powder 1250 mesh (wet method) CAS NO.12001-26-2

Mica powder is a general term for a series of material powders whose chemical composition is KM(AlSi3O10)(OH)2 (where M is Al, Fe or Mg). It belongs to monoclinic crystal and has a typical planar structure. Specific gravity 2.82, Mohs hardness 2.3, color ranging from white to gray, metallic luster. Good chemical stability, acid and alkali resistance.

Mica powder 1250 mesh (wet method) mica due to better electrical insulation properties and birefringence characteristics, especially suitable for electronics industry and decoration industry, and widely used in paint, ink, coatings, plastics, rubber, ceramics, glass, electronics, cosmetics, medicine, food and other fields.

The sheet fillers form a basically parallel orientation arrangement in the paint film, and the penetration of water and other corrosive substances to the paint film is strongly blocked. In the case of using high-quality ultrafine mica powder powder (the diameter to thickness ratio of the wafer is at least 50 times, and the best is more than 70 times), the penetration time of water and other corrosive substances through the paint film is generally extended by 3 times. Because ultrafine mica powder filler is much cheaper than special resin, it has very high technical and economic value. The use of high-quality ultrafine mica powder is an important means to improve the quality and performance of anti-corrosion coatings and exterior wall coatings. In the coating process, the ultrafine mica powder wafer lies down under the action of surface tension before the paint film curing, and automatically forms a structure parallel to each other and the surface of the paint film. Such layer arrangement, its orientation is just perpendicular to the direction of corrosive substances penetrating the paint film, the most fully improve the physical and mechanical properties of the paint film using ultrafine mica powder powder can improve a series of physical and mechanical properties of the paint film. The key is the morphological characteristics of the filler, that is, the diameter to thickness ratio of the flake filler and the length to diameter ratio of the fibrous filler. The granular filler is like the sand in the concrete, which enhances the reinforcement of the steel bar and improves the anti-wear performance of the paint film. The hardness of the resin itself is limited, and the strength of many fillers is not high (such as talc). On the contrary, ultrafine mica powder is one of the components of granite, which has great hardness and mechanical strength. Therefore, the anti-wear properties of the coating can be significantly improved by adding ultrafine mica powder as filler. Automotive coatings, road coatings, mechanical anti-corrosion coatings, wall coatings mostly use ultra-fine mica powder insulation properties Ultra-fine mica powder has a very high resistance, itself is the most excellent insulation material. It forms a compound with organosilicone resin or organosilicone boron resin, which is transformed into a ceramic substance with good mechanical strength and insulation performance when it encounters high temperature, so the wires and cables made of such insulating materials still maintain the original insulation state even after being burned in a fire. This is very important for mines, tunnels, special buildings, special facilities, etc. 5, flame retardant ultrafine mica powder is a very valuable flame retardant filler, if combined with organic halogen flame retardant, flame retardant and fire retardant coatings can be prepared. 6, anti-ultraviolet, infrared properties Ultra-fine mica powder has excellent shielding UV and infrared properties. Therefore, adding wet superfine mica powder to outdoor coatings can greatly improve the anti-ultraviolet performance of the paint film and delay the aging of the paint film. Its infrared shielding properties are used to prepare thermal insulation and thermal insulation materials. 7, thermal radiation and high temperature coating ultrafine mica powder has good infrared radiation ability, such as with iron oxide, can cause excellent thermal radiation effect. 8, sound insulation damping effect of ultrafine mica powder can significantly change a series of physical modulus of the material, forming or changing the viscoelasticity of the material. These materials efficiently absorb vibration energy and reduce vibration and sound waves. In addition, vibration and sound waves form repeated reflections between mica chips, which also causes the effect of weakening its energy. Ultrafine mica powder is also used to prepare noise reduction, sound insulation, shock absorption coatings.

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