Spherical silica powder is a non-toxic tasteless and pollution-free inorganic non-metallic material

Overview of Spherical silica powder

Spherical silica powders are spherical particles and are functional materials of powder. Spherical silica powders whose main composition is SiO2 content above 99.6% are called Spherical silica powders. It has high strength, high hardness, high dispersion and other characteristics, Spherical silica powder but also low oil absorption rate, mixing viscosity and friction coefficient; It has unique pellet structure and uniform mixing material, etc.

Spherical silica powder surface fluidity is good; The plastic sealing material made of Spherical silica powder has the minimum stress concentration and high strength. Compared with the angular silicon powder, the Spherical silica powder has a small friction coefficient, which can prolong the service life of the die.

Why spherification? First, the surface of the ball good liquidity, and the resin to form a uniform film, resin added quantity is small and most liquid, powder filling quantity can reach the highest, the weight ratio of 90.5%, therefore, spherical will mean a growing number of silicon powder filling rate is higher, the smaller its thermal expansion coefficient, thermal conductivity and the lower, the more close to the thermal expansion coefficient of monocrystalline silicon, the performance of the production of electronic components. Secondly, the spherical plastic sealing material made of the minimum stress concentration, the highest strength, when the angular powder plastic sealing material stress concentration is the spherical powder of the stress is only 0.6, therefore, the spherical powder plastic sealing material packaging integrated circuit chip, high yield, and transportation, installation, use process is not easy to produce mechanical damage. Third, the friction coefficient of spherical powder is small, the wear of the mold is small so that the service life of the mold is long. Compared with the angular powder, the service life of the mold can be doubled. The price of the packaging mold of plastic sealing material is very high, and some still need to be imported.

Spherical silica powder is a non-toxic, tasteless and pollution-free inorganic non-metallic material, which is made from natural quartz (SiO2) or fused quartz (amorphous SiO2 after high temperature melting and cooling) after grinding. Ball milling (or vibration, airflow crushing), flotation, pickling purification, high pure water treatment and other processes. In short, ultrafine comminution and purification are two important steps in the preparation of silicon powders. Natural quartz minerals contained in large quantities can greatly reduce the number of cracks and defects by using ultrafine grinding techniques. Combined with the purification process, the content of harmful impurities can be better reduced. Natural quartz minerals can be used in equipment including ball mills, agitating mills, jet mills and vibration mills.

Spherical silica powder technology is based on cheap natural high-quality powdered quartz mineral as the basic raw material and is made by two main processes: 1. Using sol-gel technology, under the condition of the existence of dispersant and spherical catalyst, to prepare high-purity spherical nano amorphous silicon powder that meets the requirements of electronic packaging materials;

2. Using flame method or ion flame method to melt into spherical amorphous silicon powder.

Applications of Spherical silica powder

Spherical silica powders are mainly used in large-scale integrated circuit packaging and are also used in high and new technology fields such as aviation, aerospace, fine chemical industry, erasable optical disc, large-area electronic substrate, special ceramics and daily cosmetics, with broad market prospects. It can save a lot of epoxy resin when used as filler in the epoxy resin system.

Spherical silica powder can also be used in powder metallurgy, diamond tool industry, sputtering target material, lithium battery addition, and superhard materials and other industries.

Silica powder has unique physical and chemical properties, make it's in optics, aviation, aerospace, electronics, chemical industry, machinery, as well as the rapid development of today's 5 g industry occupies an important position, especially its internal molecular chain structure, the change law of crystal shape and crystal lattice, make it have the high temperature resistant, small thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect and resonance effect, and its unique optical properties, in many high-tech products plays an increasingly important role.

Spherical silica powder Price

Spherical silica powder price will vary randomly with the production cost, transportation cost, international situation, exchange rate, and market supply and demand of spherical silica powder. Tanki New Materials Co.,Ltd Aims to help All industries and Chemical Wholesalers to find high-quality, cheap price nanomaterials and chemicals by providing turn-key customize manufacturing services. If you are looking for Spherical silica powder, please feel free to send an inquiry for the latest price of spherical silica powder..

Spherical silica powder Supplier

As a global Spherical silica powder supplier, Tanki New Materials Co.,Ltd has rich experiences in the properties, applications, and cost-effective manufacturing of advanced and engineered materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metal, etc.), high-purity targets, functional ceramics, and structural devices, OEM service is available.

More information about Spherical silica powder

 If you are looking for high quality Spherical silica powders, please feel free to contact us and send an inquiry. (sales@ozbo.com).