Features and Applications High Purity: Electronic grade silica sol is produced with extremely high purity levels to minimize impurities that could adversely affect electronic components. This ensures the reliability and performance of semiconductor devices and integrated circuits. Particle Size Control: The particle size distribution of electronic grade silica sol is tightly controlled to meet precise specifications. This uniformity is crucial for achieving consistent results in semiconductor fabrication processes such as chemical mechanical planarization (CMP) and wafer cleaning. Surface Properties: Electronic grade silica sol is designed to have specific surface properties tailored for electronic applications. These properties may include controlled surface charge, stability, and compatibility with other process chemicals. Polishing and Planarization: In semiconductor manufacturing, electronic grade silica sol is used in CMP slurries for polishing and planarization of silicon wafers. It helps achieve smooth and flat surfaces essential for patterning and layer deposition processes. Dielectric Films: Electronic grade silica sol can be used to deposit thin dielectric films on semiconductor substrates through techniques such as spin coating or dip coating. These films act as insulating layers in electronic devices, providing electrical isolation between different components. Passivation and Encapsulation: Silica sol can be employed for passivation and encapsulation of semiconductor devices to protect them from moisture, contaminants, and mechanical damage. The high purity and stability of electronic grade silica sol ensure long-term reliability and performance. Photolithography: Electronic grade silica sol may also be utilized as a photoresist adhesion promoter or anti-reflective coating in photolithography processes. It helps enhance pattern fidelity and resolution during the fabrication of semiconductor circuits. Wafer Cleaning: Silica sol is used in wafer cleaning processes to remove contaminants, particles, and organic residues from semiconductor surfaces. Its high purity and compatibility with other cleaning agents make it an essential component in advanced cleaning solutions.
Modified silica sol refers to a type of colloidal solution where silica nanoparticles are suspended in a liquid medium, typically water. These silica nanoparticles are modified or functionalized with various organic or inorganic compounds to alter their surface properties and enhance their performance in different applications. The modification process can involve chemically bonding organic molecules to the surface of the silica particles, which can impart specific functionalities such as hydrophobicity, oleophobicity, or compatibility with certain polymers or solvents. Inorganic modifications may include incorporating metal oxides or other nanoparticles to enhance properties like catalytic activity or mechanical strength. Modified silica sols find widespread use in various industries such as coatings, adhesives, sealants, composites, and catalysts. They offer advantages like improved dispersion, adhesion, and compatibility, making them valuable additives in many formulations.
Hydrophobic silica is a type of silica material that has been chemically modified to repel or be resistant to water. This modification alters the surface properties of silica nanoparticles, making them less prone to interacting with water molecules. The modification process typically involves treating the surface of the silica nanoparticles with hydrophobic compounds, such as alkylsilanes or fluorosilanes. These compounds form a hydrophobic layer on the surface of the silica particles, effectively blocking interactions with water molecules. Hydrophobic silica finds numerous applications across various industries. For example, it is used as an additive in coatings, paints, and sealants to improve water repellency and durability. In the pharmaceutical and food industries, hydrophobic silica can be used as an anti-caking agent to prevent clumping in powdered products. Additionally, it is utilized in rubber and plastic composites to enhance their water resistance and mechanical properties.
Hydrophilic silica is a type of silica material that exhibits a strong affinity for water. Unlike hydrophobic silica, which repels water, hydrophilic silica readily interacts with and absorbs water molecules. The surface of hydrophilic silica nanoparticles is typically functionalized with hydrophilic groups, such as hydroxyl (-OH) groups. These groups enable the silica particles to form hydrogen bonds with water molecules, promoting their dispersion and solubility in aqueous solutions. Hydrophilic silica has various applications across industries. In the pharmaceutical and cosmetic sectors, it is used as an excipient in formulations to improve the dispersibility and bioavailability of active ingredients. In chromatography, hydrophilic silica is employed as a stationary phase for separating polar compounds. It is also utilized in coatings, paints, and adhesives to enhance their rheological properties and adhesion to substrates.
White Fused Alumina Introduction White Fused Alumina (white corundum) is produced by the grinding & classification of selected Macro grain feed stock in an advanced milling and classifying facility. This ensures an iron free product of narrow particle size distribution and high whiteness. White Fused Alumina Physics Properties Color White Crystal form Triangal crystal system Mohs hardness 9.0-9.5 Micro hardness 2000-2200 kg/mm�² Melting point 2250 Maximum operating temperature 1900 True density 3.90 g/cm�³ Bulk density 1.5-1.99 g/cm�³ White Fused Alumina Chemical Position Standards Code and Size Range Chemical Composition% AI2O3 SiO2 Fe2O3 Na2O F90-F150 99.50 0.10 0.05 0.30 F180-F220 99.50 0.10 0.05 0.30 #240-#3000 99.50 0.10 0.05 0.30 #4000-#12500 99.50 0.10 0.05 0.30
Brown corundum micro powder takes the high-quality bauxite ore in deep underground as the raw material, produced by 24 hours uninterrupted high-current high-temperature smelting, cooling and crystallization. The conversion rate of the �±-Al2O3 is over 99%, can be produced according to JIS, European Standard, National Standard, or according to customers special requirements.
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Polypropylene (pp) and polyester staple fibers (psf), solid psf (both virgin and recycled) like solid siliconized, solid non siliconized, hollow psf like hcs, hc, hns, and hcns (both virgin and recycled)..Manufacture
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We are a supplier/ exporter of silica sand / Silicon dioxide SiO2. We can provide all sizes and any amount to worldwide.
Aluminum Ingots EN AB-43000 APORX: 90% aluminium, 9% silicon, and 1% magnesium.
Aluminum Ingots EN AB-43000 APORX: 90% aluminium, 9% silicon, and 1% magnesium.
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