High purity 99.9% spherical silicon dioxide silica sio2 powder 1-3um

Specification of spherical silica powder

CAS No. : 7631-86-9 ENINEC No.:231-545-4

Appearance:white Powder

Shape:spherical

Purity:99.9%

Size: 300nm, 500nm, 1-3um, 5um, 10um, 20um

Spherical silica is a kind of silicon micropowder that looks completely spherical under a microscope. It is processed by a unique process to form a high-strength, high-hardness, and inert spherical particle. Its main component SiO2 content reaches more than 99.9%. The whiteness is between 95-98, the density is 2.65, the Mohs hardness is 7-7.5, and the fineness is between 1.5 microns and 18 microns. It has a reasonable and controllable particle size range, and the appearance is white powder. High-quality spherical silica powder with extremely low oil absorption, mixed viscosity and friction coefficient. Its unique spherical structure, compared with other angular quartz powder (silica powder), the powder has excellent fluidity, and the angle formed by the accumulation of the powder is small, so when it is mixed with organic polymer materials, it is dense and enhances the strength of the body , And easy to disperse, uniform mixing, can significantly increase the fluidity of the material.

Application of spherical silica powder:

In view of the above characteristics, spherical silica powder can be widely used in large-scale, ultra-large-scale integrated circuit packaging, electronic components, and high-voltage electrical devices; it can also be used in high-grade rubber green tires, silicone rubber, silicon-based substrate materials, high-grade inks, Coatings, sealants, adhesives, electronic ceramics, optical quartz glass, engineering plastics enhanced modification, functional plastic films, drawn optical fibers, medical dental materials, cosmetics, chemical medicine, environmental protection and many other fields. Spherical silica powder has become one of the most important and critical basic raw materials in many high-tech fields.