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Felds for Applications of Fumed Silica Powder
Fumed silica powders are created by flame pyrolysis of silicon tetrachloride or quartz sand. They are extremely porous with a high BET surface area and a lower bulk density.
Fumed Silica has a broad range of applications in various industries. It is utilized as an additive in coatings, paints, resins, adhesives and fillers. It offers thixotropy, sag resistance, falsifiability and strengthening and anti-settling properties.
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Food & Beverage
The market for fumed silica will grow due to its anti-caking and flow-improving characteristics. Its anti-caking property improves production rates , and also reduces the possibility of clogging in spray dryer atomizers that help improve the efficiency of drying as well as the throughput.
Increasing demand in the pharmaceutical industry is also expected to increase market growth. According to research, the North American pharmaceutical industry accounts 50% of the worldwide market share and is growing at an impressive rate.
Hydrophilic fumed Silica is made by hydrolyzing volatile cyanosilanes an oxygen flame. It has excellent insulating properties and is extensively utilized in silicone reinforcing and thickening applications in food and industrial powders as well as in glidants that is used for systems with non-polar solvents. It can also be used in the strengthening of non-polar solvents like as xylene, mineral spirits, & STYRENE. The insulating properties help lower this vapor pressure. This permits the formulation to be shelf-stable. It can also be utilized for a myriad of industrial processes, like coatings and inks.
Pharmaceutical
Fumed silica is a key ingredient in the industry of pharmaceuticals. It is utilized as a liquid lubricant or disintegrant filler and binder in capsule and tablet formulations. It also functions as a desiccant and sorbent as well as a general thickening agent in drinks, food, and powdered medications.
The production of the fumed silica occurs through a synthesis using flame hydrolysis procedure, which involves injecting the chlorosilanes inside an oxygen-rich furnace at very high temperatures (1100degC). In the course of the combustion, these chlorosilanes will react with water , forming the primary particles of silicon tetrachloride (silicon atoms that have been vaporized) in addition to hydrogen chloride.
These particles are then bonded, sintered and aggregated together. The resulting particles are basic units of fumedsilica with sizes ranging from 150 to 200 nanometers (FIG. 1).
It is essential to understand how different levels of fumed silicon on the performance of a manufacturing operation, and that's why robust methods of characterisation of materials are employed throughout the world of pharmacy. Employing these techniques, companies are able to create designs that allow them to accurately determine the optimal properties for their substances and blends.
Chemical
Fumed Silica Powder is used in a myriad of chemical applications. It is widely used in Adsorption, rheology control dispersion stabilization and stabilization of pigments blocking, anti-sagging, and also for reinforcement. It's also a fantastic bulking agent and can help increase the thixotropy value of a coating.
Fumed Silica is generated by combustion hydrolysis synthesis. It involves burning carbon-containing coal in an electric oven that has oxygen gas at high temperatures (1100 degrees C). The gaseous product condenses onto the existing silica particles and precipitate to form fumed silica.
Primary particles have a diameter of 7-40 nm and a specific surface of 100-400 m2/g. When they are molten during the reaction, the primary particles collide between them and form chain-like, branch-like aggregates.
During the cooling phase, the primary particles turn solid and are unable to combine. But, at temperatures below its melting point the silica (1710 deg C) that is, the initial particles remain colliding and form the aggregates through mechanical entanglement or agglomeration.
Cosmetics
As a natural mineral, free silica is plentiful in nature, and it can be found in crystal or anamorphous varieties. As an amorphous type, it is often used in cosmetic formulations.
Silica is a natural molecule with a skeleton made of silicon and oxygen tetrahedra (SiO2). Other elements are included in certain instances including iron, aluminum magnesium, calcium and potassium.
There are a myriad of silicas throughout the world and they all have distinct physical properties. Pyrogenic silicas have a variety of applications in the cosmetics industry: an agent to move powders, - a higher consistency of lipsticks with a higher temperature stability, and the gelation process of anhydrous oils and systems.
Talcor mica, as well as fluorphlogopites are used primarily as fillers of powders to aid in the formulation of different products , including make-up powders or foundations. They are characterized by a huge surface area , and they determine the ability to touch of the formulations.
Supplier of high quality fumed silica powder
TRUNNANO is dedicated to innovation in technology, the application of nanotechnology, and innovative industry sectors, and has a vast know-how in nanotechnology research development and application of materials. The company has been able to develop a range of powder materials (including oxides, carbides single metals, nitrides and more. ) Targets with high purity, functional ceramics and structural devices.
To request an RFQ (Request For Quote) or an inquiry about fumed silica or fumed quartz powder, please contact sales 5 @nanotrun.com. A sales representative will reply promptly with delivery and cost.tongruncms
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