Mica powder

Mica powder stay coating The application of is mainly reflected in the following aspects:

1. Blocking action sheet filler It forms basically parallel orientation arrangement in the paint film, and the penetration of water and other corrosive substances to the paint film is strongly blocked Sericite In the case of powder (the diameter and thickness of the wafer are 50 times less than ZI, and better than 70 times), the penetration time of water and other corrosive substances through the paint film is generally 3 times longer. Because sericite powder filler is much cheaper than special resin, it has high technical and economic value of FEI. High quality sericite powder is used to improve Anticorrosive coating And exterior wall coatings. During the coating process, sericite wafers lie down under the effect of surface tension before the curing of the paint film, and automatically form a structure parallel to each other and the surface of the paint film. This layer by layer arrangement, whose orientation is just perpendicular to the direction of corrosive substances penetrating the paint film, plays a more CHONG role.

2. To improve the physical and mechanical properties of the paint film, sericite 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 thickness ratio of the sheet filler and the length diameter ratio of the fibrous filler. The granular filler, like the sand and stone in the concrete, plays the role of reinforcement.

3. The hardness of the resin itself is limited, and the strength of many fillers is not high (such as talc). On the contrary, sericite is one of the components of granite with high hardness and mechanical strength. Therefore, adding sericite powder as filler in the coating can significantly improve its anti-wear performance. Sericite powder is mostly used for vehicle coatings, road coatings, mechanical anti-corrosion coatings and wall coatings.

4. Insulating property Sericite has high resistance and is a good insulating material. It forms a compound with silicone resin of agricultural production system or silicone boron resin of agricultural production system, which will be converted into ceramic substances with good mechanical strength and insulation performance when encountering high temperature. Therefore, wires and cables made of such insulating materials will remain in their original insulation state even after being burned in the fire. It is often important for FEI of mines, tunnels, special buildings, special facilities, etc.

5. Flame retardant sericite powder is a valuable flame retardant filler. If it is combined with halogen flame retardant in agricultural production system, flame retardant and fire retardant coatings can be made.

6. Anti ultraviolet and infrared performance Sericite has good performance of shielding ultraviolet and infrared rays. Therefore, adding wet sericite powder to outdoor coatings can greatly improve the direct light prevention performance of the paint film and delay the aging of the paint film. Its infrared shielding performance is used to prepare thermal insulation materials (such as coatings).

7. Thermal radiation and high temperature coating sericite have good infrared radiation ability. If they are combined with iron oxide, they can produce good thermal radiation XIAO effect.

8. Sound insulation and shock absorption sericite can significantly change a series of physical moduli of materials, forming or changing the viscoelasticity of materials. This kind of material GAO effectively absorbs vibration energy and weakens vibration wave and sound wave. In addition, the vibration wave and sound wave form repeated reflection between mica chips, which also weakens their energy. Sericite powder is also used to prepare sound attenuation, sound insulation and shock absorption coatings.

Technical indicators: