Yuan Lei's Little Knowledge | Application Fields of Silica Powder

Release time:

2024-01-29 09:34

Silicon powder is a non-toxic, tasteless, non-polluting inorganic non-metallic material. Because of its good temperature resistance, acid and alkali corrosion resistance, high thermal conductivity, high insulation, low expansion, stable chemical properties, high hardness and other excellent properties, it is widely used in chemical industry, electronics, integrated circuits (IC), electrical appliances, plastics, coatings, advanced paint, rubber, national defense and other fields. With the rapid development of high-tech fields, silicon powder will also enter a new historical period of development.



Application in rubber products

Activated silica micropowder (treated with coupling agent) is filled in natural rubber, cis-polybutadiene rubber and other rubber materials, the powder is easy to disperse, the mixing process performance is good, the calendering and extrudability are good, and the vulcanization speed of vulcanized rubber can be improved, and the viscosity of rubber can be improved. In particular, ultrafine silica micropowder (average particle size ≤ 4.5um) replaces part of silica to be filled in rubber materials, it has a good effect on improving the physical properties of products and reducing production costs. -2um up to 60-70% silicon micropowder is used for export-grade medicinal chlorinated butyl rubber bottle stopper and electrical insulated rubber shoes with good effect.


Application in plastics

Silicon powder is used in plastics, especially in translucent plastic films. After adding ultrafine silica, it greatly improves its strength, toughness, waterproof performance, energy storage and heat preservation performance. In plastic structural materials, the mechanical properties can be increased by 1 to 3 times after adding silicon powder. For modified resin matrix composites, it can improve the strength, toughness, elongation, wear resistance, finish, anti-aging and other properties of composites.



Application of Copper Clad Laminate in Integrated Circuit

A key application area of silicon powder is integrated circuit copper clad laminate (CCL). As the core of the information technology industry, the integrated circuit industry is a strategic, basic and leading industry that supports economic and social development and guarantees national security. As the most important carrier of integrated circuits, copper clad laminates act as industrial basic materials in integrated circuits.

At present, the silicon micropowder used in integrated circuit copper clad laminates mainly includes five varieties: crystalline silicon micropowder, molten (amorphous) silicon micropowder, spherical silicon micropowder, composite silicon micropowder, and active silicon micropowder. They each have advantages and disadvantages. China has the world's largest integrated circuit production capacity and market, demand will continue to maintain rapid growth. Among them, as a new variety of composite modification, composite silicon powder has shown good use efficiency and market prospects.

Application field, silicon powder, integrated circuit, improvement, performance, copper plate, plastic, application, as,

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