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What Advantages does Spherical Silica Powder Have?

What is Silica Powder and How Does It Work? Quartz powder (or silica) is made from quartz (natural quartz, fused quartz), by crushing, cleaning, acid treating, crushing, fine grinder, and classification. Iron and other processing are also used to produce the powder.
Silica is a form of silicon oxide. Its chemical formula is SiO2, and it is the most common type of quartz found in nature. Silica is the major component of sand. Silica, which can be formed as a variety of mineral compounds or synthetic products, is one of the most complex materials. fused-quartz and aerogel are just a few examples.
It is used as a structural material, microelectronics, and in components of the food and pharmaceutical industries.

What is Spherical Silica Pulp?
Spherical quartz dust has many advantages including a smooth surface and large specific surface area. It also has stable chemical properties.
First of all, the resin is stirred evenly into a thin film. The resin addition volume is low and the quartz powder filling is large. The mass fraction can exceed 90.5%. The lower the quartz powder filling, the lower its thermal conductivity. Additionally, the thermal expansion coefficients of plastic sealing materials are smaller. The closer they are to monocrystal silica thermal expansion coefficient, the better electronic components can be produced.
Second, the stress in spherical powder can be 60% lower than that in angular powder. Furthermore, the stress concentration for plastic seals made of spherical Quartz powder is the lowest, while its strength is the greatest. Finally, spherical powder has a smooth surface, a small friction coefficient, low wear, and a longer service life.

What is Spherical Silica Powder Used For?
Primarily used to make electronic packages. The main materials for electronic packaging are plastic sealing material, substrate material, and lead frame. Plastic packaging has seen rapid development since its birth. The current global market for integrated circuits is 95% because of its simplicity, cost effectiveness, and mass production. EMC (epoxy plastic packaging) is the mainstay of integrated circuit packaging. More than 95% use epoxy plastic sealing.

The main requirements for integrated circuit packaging are low stress, low moisture, low alpha radiation, dip resistance, reflow weldability, and low humidity. Inorganic fillers must be used in epoxy resin. Today, quartz powder is the most common inorganic ingredient. Microelectronics industry is rapidly developing, and large-scale, very big-scale integrated circuits are more difficult to manufacture. Quartz powder, which is important support for EMC materials, not only conforms to encapsulate specific scope but also meets the requirements of high purity, low-content radioactive elements, in particular the particle shape using the spherical requirements.

Spherical silica powder has a great shape and can be used to meet the technical requirements of high end integrated circuits. It can significantly reduce the thermal extension coefficient of plastic sealing material, reduce it's dielectric constant, decrease stress, greatly increase rigidity and wear resistance.

Apart from being used in the area of electronic packaging, spherical Quartz Powder can also widely be used in high-grade cosmetics, high precision ceramics, precision grinder of optical devices, and electronic components, as well as filler for special paint coats.

Spherical Silica Powder Price
Price is affected by many factors, including supply and demand, market trends, economic activity and unexpected events.
You can email us to request a quote for the most recent spherical silicon powder. (brad@ihpa.net)

Spherical Silica Powder Supplier
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in producing super high-quality chemicals.
Send us an inquiry if you're looking for high-quality, spherical Silica Powder. (brad@ihpa.net)

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Main Application Areas of Silica Powder

What is silica?

Silica powder can be made from natural quartz, fused silica and others. as raw materials. They are then processed through multiple processes, such as grinding and precision classification. The most popular products are fused silica powder and crystalline silicone powder. Micropowders and spherical micropowders of silica are two examples.

Silica powder has a wide range of applications.

Crystalline silica is used primarily for copper clad laminations in refrigerators, air conditioners, and other household appliances. The majority of copper clad laminates found in smart phones and tablet computers, as well as air conditioners and washing machine, are made from fused silica. The spherical silica powder, which is one of many epoxy plastic molding materials, has exceptional characteristics, including high fluidity and low stress. The filling rate for spherical silica powder is much higher than that for angular silica powder. This allows you to reduce the copper clad laminates as well as epoxy plastic molding compound. The coefficient of linear extension is used most often in high-end copper laminates like aerospace, 5G communications and epoxy plastic packaging materials that are large-scale integrated device packaging such as smart phone and wearable devices.

Copper Clad Laminate - Application of silica powder

It is important to add performance fillers to copper clad laminate's production formula to increase heat resistance and reliability. Silica powder is widely used as a filler in the copper-clad laminate industry because it has many advantages, including heat resistance, dielectric property, linear expansion coefficient, and dispersibility within resin systems.

Epoxy Molding Compound - Application of silica powder

A molding compound that is composed of epoxy resin as matrix resin and high-performancephenolic resin curing agent. Silicon powder can be used as filler. The epoxy molding compound composition consists of 60-90% filling rate.


Tech Co., Ltd. is a professional supplier of silica powder with more than 12 years' experience in chemical product development and research. We accept credit cards, T/Ts, West Union, and Paypal payments. We will ship goods overseas via FedEx, DHL and by air or sea to our customers.


Send us an inquiry if you are interested in SiO2 powder of high quality.

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