When it comes to silica micropowder and white carbon black, there are many common ingredients, but there are still differences on both sides. There are specific differences between silica micropowder and silica micropowder. Silica micropowder is a mixture, while silica micropowder is much purer. . Of course, there are many differences between silica and silica powder. Let me introduce the difference between silica and silica powder.
what is microsilica
Silica powder is a kind of non-toxic, odorless, non-polluting, which is made of natural quartz (SiO2) or fused quartz (natural quartz melted at high temperature and cooled amorphous SiO2) through crushing, ball milling (or vibration, jet milling), Non-metallic mineral powder processed by multiple processes such as flotation, pickling purification, high-purity water treatment, etc., has high hardness, low oil absorption, easy dispersion, good anti-precipitation, not easy to precipitate, strong stability, acid and corrosion resistance, etc. characteristic. Because of its excellent properties such as good temperature resistance, acid and alkali corrosion resistance, high insulation, low expansion, poor thermal conductivity, stable chemical properties, and high hardness, it is widely used in chemical industry, electronics, integrated circuits (IC), electrical appliances, advanced Paint, rubber, plastic, coating, national defense and other fields. With the rapid development of high-tech fields, silicon micropowder will also enter a new historical development period.
What is white carbon black
Nano-silica, commonly known as white carbon black, precipitated white carbon black, molecular formula SiO2 nH2O, is an amorphous silica, because the primary particle size is nano-scale, also called nano-silica powder. Silica can be used in the fields of coatings, inks, adhesives, silicone rubber, plastics, toothpaste and papermaking. It is a powder material with optical functionality, transparency and ultrafineness. It is commonly known in the market as matting agent, reinforcing agent, The main components such as anti-settling agent and toughening agent are also nano-silica. The product has the characteristics of high transparency, good toughness, ultra-fine and uniform particle size distribution, and can improve the transparency, tear resistance, adhesion, weather resistance and corrosion resistance of materials. Compared with other similar products, it has a greater price advantage and achieves higher filling volume.
The difference between silica powder and white carbon black
Silica powder generally has a crystalline structure, and the surface is smoother than white carbon black. Silica is an amorphous structure, and the light is refracted many times on its surface, and the loss is relatively large, so silica (fumed silica) has a matting effect.
The difference between microsilica powder and white carbon black
The role of silica powder
Microsilica powder is processed from pure quartz powder through advanced ultra-fine grinding technology, and is an inorganic non-metallic material with a wide range of uses. It has the advantages of excellent dielectric properties, low thermal expansion coefficient, high thermal conductivity, and good suspension performance. Because of its excellent physical properties, high chemical stability, unique optical properties and reasonable and controllable particle size distribution.
The role of white carbon black
White carbon black has good activity and adsorption rate, good reinforcing effect, high insulation, insoluble in water and acid (except hydrofluoric acid), soluble in caustic soda, and does not decompose under high temperature. Its whiteness is good, filling in rubber can significantly improve the physical properties of the rubber, and it has become the best white reinforcing filler to replace carbon black.