The purchasing pace at the demand end of the international thermal coal market continues to slow down and the international thermal coal price continues to decline. Prices for thermal coal at major international ports continued to fall last week as buyers in Europe slowed in recent days for April, coupled with weaker-than-expected import demand from End users in China. According to China Coal Market net monitoring: Australia Newcastle port thermal coal price index was 253 USD/ton, compared with 309.02 USD/ton, down 56.02 USD/ton, down 18.13%. South Africa's Port Richards thermal coal price Index was $264.5 / mt, down the US $62.72 / mt or 19.17% from US $327.22 / mt. The European ARA Tri-port thermal coal price Index was $281.8 / ton. Does the price of thermal coal in major international ports continue to decline to affect the price of the Spherical SiO2 powder?
About Spherical quartz powder Spherical SiO2:
Spherical quartz powder has excellent properties such as smooth surface, large specific surface area, high hardness and stable chemical properties. First of all, the spherical powder fluidity is good, and the resin is stirred into a film evenly, the resin addition amount is small, the filling amount of quartz powder is high, and the mass fraction is up to 90.5%. The higher the filling amount of quartz powder, the lower the thermal conductivity, the smaller the thermal expansion coefficient of plastic sealing material, the closer to the thermal expansion coefficient of monocrystalline silicon, the better the performance of the electronic components produced. Secondly, the stress of the spherical powder is only 60% of that of the angular powder, and the plastic sealing material made from the spherical quartz powder has the lowest stress concentration and the highest strength. Finally, the surface of the spherical powder is smooth, the friction coefficient is small, the wear of the mold is small, and the service life of the mold can be extended by more than 1 times. TRUNNANO is a trusted global Spherical silicon oxide quartz supplier. Feel free to send an inquiry about the latest price of spherical silicon oxide quartz powder at any time.
Performance of Spherical quartz powder Spherical SiO2：
1. High sphericity, uniform size, can be added to a large extent, the viscosity of the polymer system does not change significantly;
2. The surface of spherical silicon oxide has good fluidity, uniform film formation by stirring with resin, small amount of resin added, good fluidity and high powder filling amount. The smaller the thermal expansion coefficient and the lower the thermal conductivity, the closer it is to the thermal expansion coefficient of single crystal silicon, and the better the performance of the electronic components produced therefrom;
3. When the spherical silicon oxide-filled plastic encapsulates the integrated circuit chip, the yield is high, the friction coefficient of the spherical silicon oxide powder is small, and the wear of the mold is small, so that the service life of the mold is long. Compared with the angle powder, the mold can be improved. Double the service life;
Technical Parameter of Spherical quartz powder Spherical SiO2：
|Test Items||Unit||Typical value||Test Method|
|Chemical Composition||SiOB2B||%||99.9||Weight Method|
|Extraction Water||Ec||μS/cm||13.0||Conductivity Meter|
|Na+||ppm||0.7||Atomic Absorption Spectrometer|
|Cl-||ppm||0.4||Auto Electric Potential Titrator|
How is Spherical quartz powder Spherical SiO2 produced?
Spheral quartz powder is made of natural quartz stone after purification and ultrafine grinding, through a certain high-temperature field, so that its phase state, crystal and shape change instantaneously, from solid to molten state to solid-state, from crystal to amorphous state, from irregular angular particles into regular spherical particles and obtained by a powder. At present, the preparation methods include high-temperature plasma melting, high-temperature melt injection and gas combustion flame method.
Applications of Spherical quartz powder Spherical SiO2:
Spherical quartz powder Spherical SiO2 is mainly used for high temperature vulcanized silicone rubber, silicone defoaming agent, advanced printing ink, powder coating, PVC resin, unsaturated polyester resin thickening, thixotropic agent, pharmaceutical powder, sheet material preparation, cosmetics, etc.
Spherical silica powder is not only good shape, and high chemical purity, low content of the radioactive element, can meet the high-end integrated circuits in all kinds of technical requirements, its application can greatly reduce the encapsulation material thermal expansion coefficient, lower the dielectric constant, reduce stress, greatly enhance rigidity and wear resistance, weather resistance, impact resistance, compressive strength, tensile, the wave resistance, flame resistance, make the products with good arc resistance insulation characteristics and resistance to ultraviolet radiation, etc., have become the indispensable key electronic packaging materials.
Spherical quartz powder is mainly used in the field of electronic packaging, but also widely used in the manufacturing of electronic ink, optical fiber, high-end cosmetics, advanced precision ceramics, precision grinding of optical devices and electronic components, and used as a filler for special paints and coatings.
Storage Condition of Spherical quartz powder Spherical SiO2：
The Spherical quartz powder Spherical SiO2 should be Stored in a dry and cool environment in a sealed place, not exposed to the air, to prevent oxidative agglomeration caused by moisture, affecting the dispersion performance and use effect;
Packing & Shipping of Spherical quartz powder Spherical SiO2：
It is packed in double plastic bags inside, which can be filled with argon in a vacuum; it can be vacuumed and filled with argon for protection..
Spherical quartz powder Spherical SiO2 Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Spherical quartz powder Spherical SiO2 Powder shipping: could be shipped out by sea, by air, by express as soon as possible once payment receipt.
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality sperical SiO2 powder, please feel free to contact us and send an inquiry. ([email protected])
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|
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