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What is spherical silica powder used for?

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The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Tourists and business trips have plummeted. On the booking website, there are a large number of air tickets for local routes with a price reduction of nearly 90% compared with the original price and only tens of yuan for a one-way trip.
In February, China's aviation industry recorded its largest single-month loss of 24.59 billion yuan, of which airlines lost 20.96 billion yuan.
Data from the Civil Aviation Administration of China showed that in February, the number of passengers traveling by air fell 84.5% year-on-year to 8.34 million.
The stagnation of the Asian aviation industry has brought volatility to spherical silica powder,​Overview of spherical silica powder,Spherical silica powder application,Spherical silica powder price,Spherical silica powder supplier.

Overview of spherical silica powder

Spherical silica powder has the advantages of smooth surface, large specific surface area, high hardness and stable chemical properties.

Why spheroidize? First of all, the surface of the sphere has good fluidity and can be mixed with the resin to form a film. The amount of resin added is small, and the fluidity is the best. The filling amount of powder can reach the highest, and the weight ratio can reach 90.5%. Therefore, spheroidization means that as the filling rate of silicon powder increases, the higher the filling rate of silicon powder, the smaller the thermal expansion coefficient, the lower the thermal conductivity, and the closer to the thermal expansion coefficient of single crystal silicon, the better the performance of the electronic components produced. , the spheroidized plastic molding compound has the smallest stress concentration and the highest strength. When the stress concentration of angular powder molding compound is 1, the stress of spherical powder is only 0.6. Therefore, the spherical powder molding compound has a high yield when packaging integrated circuit chips, and is not prone to mechanical damage during transportation, installation and use. Secondly, the friction coefficient of spherical powder is small, and the wear on the mold is less, so that the service life of the mold is long. Compared with horn powder, the service life of the mold can be doubled. Plastic composite packaging molds are expensive.

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Spherical silica powder application

 Spherical silica powder is mainly used as electronic packaging material. The three main materials of electronic packaging are substrate material, plastic sealing material and lead frame and solder. Due to its low cost, simple process and suitable for mass production, plastic packaging has developed rapidly since its birth, and its proportion in packaging has become larger and larger. Currently, plastic packaging accounts for more than 95% of the global integrated circuit market. Among plastic packaging materials, epoxy plastic packaging (EMC) is the mainstream of integrated circuit packaging, and more than 95% of microelectronic components are sealed with epoxy plastic.

 In microelectronic packaging, integrated circuit packaging mainly requires high moisture resistance, low stress, low alpha ray, resistance to dip soldering and reflow soldering, and good sealing performance. To this end, the epoxy resin must be mixed with inorganic fillers in the resin matrix, and the inorganic fillers currently used are almost all quartz powder. With the rapid development of the microelectronics industry, large-scale and ultra-large-scale integrated circuits have higher and higher requirements for packaging materials. As an important support for EMC materials, quartz powder not only conforms to the specific range of packaging, but also proposes its high purity , requirements for low content of radioactive elements, especially the requirements for spherical shape of particles.

 Spherical silicon powder not only has good shape, but also has high chemical purity and low content of radioactive elements, which can meet the technical requirements of high-end integrated circuits. It can greatly reduce the thermal expansion coefficient of plastic sealing materials, reduce its dielectric constant, reduce stress, greatly improve rigidity, wear resistance, weather resistance, impact resistance, compression resistance, tensile resistance, moisture resistance, fire resistance, and make the product It has good resistance to arc insulation and UV radiation.

 In addition to being used in electronic packaging, spherical quartz powder can also be widely used in the manufacture of electronic inks, optical fibers, high-grade cosmetics, high-grade precision ceramics, precision grinding of optical devices and electronic components, and as fillers for special paints and coatings.

Spherical silica powder price

The price of spherical silica powder varies randomly with the production cost, transportation cost, international market situation, exchange rate, market supply and demand and other factors of spherical silica fine powder. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality products by offering a full range of products. If you are looking for spherical silica powder, please contact us for the latest price of spherical silica powder.

Spherical silica powder supplier

As a global supplier of spherical microsilica, Tanki New Materials Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including boron carbide, aluminum carbide, titanium carbide, etc.), high-purity target materials, functional ceramics and structural devices, and provides OEM services.

Spherical quartz powder Spherical SiO2 Properties
Other NamesFused quartz, spherial quartz, spherical SiO2, silica
CAS No.7631-86-9
Compound FormulaSiO2
Molecular Weight60.09
AppearanceWhite Powder
Melting Point1,600° C (2,912° F)
Solubility in waterN/A
Density2533 kg/m3
Purity99.5-99.9%
Particle Size10-30nm
Boling point2,230° C (4,046° F)
Specific HeatN/A
Thermal ConductivityN/A
Thermal ExpansionN/A
Young's ModulusN/A
Exact Mass59.9668 g/mol
Monoisotopic Mass59.967 Da
Spherical quartz powder Spherical SiO2 Health & Safety Information
Safety WarningDanger
Hazard StatementsN/A
Flashing pointNot applicable
Hazard CodesN/A
Risk CodesN/A
Safety StatementsN/A
RTECS NumberN/A
Transport InformationNONH
WGK GermanyNONH


The current international situation is highly uncertain, and its economic impact has not been able to be assessed properly. In addition, rising energy and commodity prices and supply chain disruptions are expected to push the price of the spherical silica powder,​Overview of spherical silica powder,Spherical silica powder application,Spherical silica powder price,Spherical silica powder supplier higher.

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