What is spherical silica powder used for?
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Roche and its subsidiary TIB Molbiol have developed a series of tests for the detection of the monkeypox virus, the Switzerland-based pharmaceutical company announced.
The monkeypox virus is a close relative of the smallpox virus, belonging to orthpoxviridae in the poxviridae family.
The modular virus detection tool, called LightMix, includes three orthpoxvirus detection kits with different functions, Roche said in a statement. The first kit detects orthpoxvirus; The second kit tests only for monkeypox virus (west and Central African branches); The third kit contains the main functions of the first two kits, showing specific information on the presence of the monkeypox virus (west and Central African branches) as well as the detection of orpoxvirus.
Thomas Schinek, a Roche executive, said the new test could detect monkeypox and help track its spread. Such diagnostic tools are critical for addressing and ultimately managing emerging public health challenges, as they advance responses such as tracking efforts and treatment strategies.
The monkeypox virus was first identified in 1958 in a group of monkeys used for research when the animals developed a "pox-like" infection, hence the name. Since May, several non-endemic countries have reported human cases of the monkeypox virus, including the United Kingdom, the United States, Portugal, Spain, and Italy.
Affected by the ever-changing international situation, the supply and prices of international bulk spherical silica powder,Overview of spherical silica powder,Spherical silica powder application,Spherical silica powder price,Spherical silica powder supplier are still very uncertain.
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.
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 Names||Fused quartz, spherial quartz, spherical SiO2, silica|
|Melting Point||1,600° C (2,912° F)|
|Solubility in water||N/A|
|Boling point||2,230° C (4,046° F)|
|Exact Mass||59.9668 g/mol|
|Monoisotopic Mass||59.967 Da|
|Spherical quartz powder Spherical SiO2 Health & Safety Information|
|Flashing point||Not applicable|
China's non-manufacturing purchasing managers index for March was released by the China Federation of Logistics and Purchasing and the Service Industry Survey Center of the National Bureau of Statistics today. An index of business activity for the non-manufacturing sector as a whole fell below 50 percent.
China's non-manufacturing business activity index was 48.4%, down 3.2 percentage points from the previous month. The new orders index was 45.7 percent, down 1.9 percentage points from the previous month, indicating a significant slowdown in the growth of supply and demand in the non-manufacturing sector from the previous month. In terms of sectors, the business activity index and new order index of transportation, accommodation and catering, culture, sports and entertainment, and tourism-related industries all declined significantly from the previous month.
Then the spherical silica powder,Overview of spherical silica powder,Spherical silica powder application,Spherical silica powder price,Spherical silica powder supplier of the market may be affected by significant changes, the price will also be volatile, if you want to know the latest news of the spherical silica powder,Overview of spherical silica powder,Spherical silica powder application,Spherical silica powder price,Spherical silica powder supplier, welcome to contact us.