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.
Casting Silica
China leading manufacturer since 1998. annual production capacity 200,000MT. SGS certified Quality assurance . More solutions will be offered as per customers' request. HS-515 SiO2% 14 16 Specific Gravity 1.08 1.09 Na2O% 0.5
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.
PRODUCT NAME: COLLOIDAL SILICA Other name: SILICA SOL MODEL: JN-30 Color: Clear CAS NO. : 112926-00-8 TDS Specification: SIO2, %: 30, NA2O, %: 0.40 , PH: 9.0~10.5; Viscosity: 4.3-5.5 cp ; SP.GR: 1.19~1.21 Particle: 8~15 nm Application for investment casting, lost wax casting, refractory, water paint, concrete polishing..
Refractory fibers with Silica Sol as the main raw material are widely used as thermal insulation materials in industrial furnaces and other thermal and industrial equipment due to their excellent energy saving and high temperature resistance Other amorphous refractories and ceramic products with silica sol as a bond because they will not bring in a variety of low melting point oxides improve the use of performance and have the advantages of high release strength high temperature volume stability high temperature thermal shock resistance etc Si02 2931 Na2O 05 Specific gravity25 119121 PH value25 9105 Viscosity25 65 Particles SizeNM 1020 Shelf life 1 year appearance transparent
Bentonite is a remarkable natural resource that plays a critical role in many industries. As industries continue to seek sustainable and effective materials, bentonite is poised to remain a key player in the global market. For customers looking for reliable, high-quality bentonite, our company offers tailored solutions that meet a wide range of needs. Introduction to Bentonite Bentonite is a highly versatile clay known for its unique properties, including swelling, viscosity, and adsorption. Formed from the weathering of volcanic ash, bentonite contains predominantly montmorillonite clay minerals. Its unique properties make it essential in various industries, ranging from oil drilling to health and beauty. Properties of Bentonite Bentonite's key properties stem from its mineralogical composition. It can absorb substantial amounts of water, which allows it to expand and form gel-like masses. This makes it extremely useful as a sealing agent, binder, and purification substrate. The typical elemental makeup includes high levels of silica and aluminum, with smaller amounts of calcium, magnesium, and iron, which confer its ability to bond and react with other substances. Bentonite Formula and Elemental Composition: Bentonite is primarily composed of montmorillonite, a type of clay mineral that belongs to the larger family of phyllosilicates. Montmorillonite itself can vary slightly in chemical composition, but generally, it can be represented by a simplified formula: Na,Ca0.33(Al,Mg)2(Si4O10)(OH)2nH2O. The elemental makeup of bentonite includes a mix of several primary elements which contribute to its properties: Silicon (Si, (Aluminum (Al), Magnesium (Mg), Calcium (Ca), Sodium (Na), Oxygen (O) and Hydrogen (H). Mining and Production of Bentonite The mining of bentonite is a meticulous process that involves extracting material from open-pit mines. The extracted bentonite is then refined and processed into various grades, depending on its intended use. Major bentonite mining regions include the Western United States, Greece, and Australia, where mining techniques are designed to minimize environmental impact while maximizing yield. Applications of Bentonite Bentonite has a wide range of applications due to its versatile properties. It is used in drilling mud for oil and gas wells, as a binder in the foundry industry, in environmental applications such as landfill liners, and as a carrier in fertilizers. It also finds applications in personal care products, due to its absorbent and viscosity-modifying properties.
SiO2% 14-16 Specific Gravity 1.08-1.09 Na2O% 0.5 PH Value 25 9-11 Viscosity(25, mPas) 6.5 Particles Size(nm) 2-7 Shelf Life 6 months application to #PulPaperMaking -improve fiber and #finesretention -improve colloidal retention -improve starch retention -improve #dewatering (#drainage, #pressing, and #drying) -improve formation -improve runnability -reduce downtime and off-quality production
[product introduction] The product is white or gray white particles. In addition to the pore structure and adsorption performance of ordinary silica gel, it also has good water resistance, does not crack when encountering water, and has long service life. [product use] 1.It is used for drying and purification of compressed air and air separation industry as adsorbent for acetylene and carbon dioxide 2.Used as liquid adsorbent and catalyst carrier in petrochemical, electric power, brewing and other industries. 3.It is used as the buffer desiccant of ordinary silica gel protective bed. [package]: 20kg or 25kg / bag, composite bag, lined with polyethylene bag
Product Description: TMM-30i is a colloidal suspension of silica in water. The silica is present as a proprietary distribution of particle sizes that produces excellent strength and stability as compared to standard sols. TMM-30i binder does not contain polymer. Typical Binder Physical Properties: Appearance: Milky white % SiO2: 29-30% pH: 9.7 - 10.7 Viscosity: 4-8 cps Density@20C: 1.201-1.219 (g/ml)
