Tag: silica powder

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, washing machines, and air conditioners 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. Spherical silicon dust fills at a higher rate than angular silica powder. This is a significant advantage over epoxy plastic mold compounds and copper clad laminations. The coefficient of linear extension is used most often in high-end copper laminates like aerospace and 5G communications.

Copper Clad Laminate – Application of silica powder

It is important to add performance fillers to copper clad laminate’s production formula to improve 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 silica supplier that has more than 12 years of experience in chemical products 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.

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, […]

Methods of Producing Spherical Silica Powder

spherical silica powder is a highly crystalline, hard and chemically inert material that has many applications in the microelectronics industry. Its spherical shape makes it suitable for use as a filler in semiconductor encapsulants, where it provides good arc insulation and UV radiation resistance and enhances the packaging process.

Methods of producing spherical fused silica powder are known in the art, wherein starting silica powder is fed to a burner flame formed by combustion of oxygen with a flammable gas such as propane. The heat of combustion imparted by the flame is used to melt the powder, thereby spheroidizing it. The flame must have sufficient thermal power to raise the temperature of the silica powder to a melting point or higher and also must have a long enough flame length to uniformly melt silica powder having a broad particle size distribution.

In order to achieve this, an auxiliary flame containing a large heat of combustion is used to increase the flame temperature and lengthen the flame. The auxiliary flame may be fed to the burner as a liquid or as a superheated vapor, depending on the desired production method.

The auxiliary flame may be fed to the combustion burner from a same burner as that used to feed the starting silica powder or from a different burner. The auxiliary flame is fed at a rate of 4.4 Nm 3/h for example to achieve the same heat of combustion as the propane gas and oxygen gas fed to the burner in Example 1.

A further advantage of using a large heat of combustion in a composite flame of the fuel gas combustion flame and the siloxane or alkoxysilane auxiliary flame is that the fine particles of starting silica powder that form as a result of oxidative combustion coalesce with the molten silica powder and are ultimately recovered as part of the final powder product. This increases the speed at which the spherical silica powder is produced and reduces the amount of flammable gas required for the production.

spherical silica powder is a highly crystalline, hard and chemically inert material that has many applications in the microelectronics industry. Its spherical shape makes it […]

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, picking up, cleaning, acid treating, crushing, fine grinding 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, silica, aerogel, and vapor silica 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, the spherical powder is fluid and evenly mixed into a resin 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 the electronic components that will 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 from 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?
Mainly used to make electronic packages. Substrate material, plastic sealing material, and lead frame/solder are the main materials used in electronic packaging. 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. Quartz powder is the most common inorganic material. 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 specific scope requirements, but also meets the high purity and low radioactive elements demands, especially when it comes to the shape of the particles 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 and reduce stress. Also, it can increase the rigidity. Tensile resistance, compression resistance, weather resistance. Fire resistance.

This powder can be used for electronic packaging as well as in the production of high-grade optical ink, precision ceramics, precision grinding optical devices, and electronic components.

Spherical Silica Powder Price
Price is affected by many factors, including supply and demand in a market, industry trends and economic activity.
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)

What is Silica Powder and How Does It Work? Quartz powder (or silica) is made from quartz (natural quartz, fused quartz), by crushing, picking up, […]

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