There are various grades of this substance, which are defined by their amorphous structure. It is used to provide thixotropic properties in coatings and adhesives. It also assists in enhancing flow in the production industry, such as cosmetics and pharmaceuticals.
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This is a silica-based polymer with a tendency of absorbing moisture. It is used in high-technology fields or as an ingredient in paints, coatings, electronics and optical fibers industries.
Corrosionpedia Explains Hydrophilic Fumed Silica
Hydrophilic fumed silica, a light white powder, is brought about by the reaction of oxyhydrogen flame and volatile chlorosilanes (Silicon tetrachloride) to form molten spheres of silicon dioxide (and hydrogen chloride). The particle structure of the product depends on the place of application and the market. The variation of these sphere sizes is what brings about the grades.
The hydrophilic nature of fumed silica is a result of the attachment of hydroxyl groups onto silica atoms just at the surface of the particle; the product is now capable of hydrogen bonding—this makes it dispersible in water. This makes the product stable at room temperature, thus increasing the shelf life once opened.
Hauling Frack Sand in a Hopper BottomWhy choose the multi-span greenhouse?By reacting hydrophilic fumed silica with reactive silanes, hydrophobic silica can be produced. The addition of this product in adhesives and coatings increases the surface energy adhesive force of the substrate.
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Hydrophilic Fumed Silica - Cabot Corporation
Our hydrophilic (untreated) fumed silica powder and dispersion products provide exceptional performance benefits for a wide variety of applications and industries.
Our CAB-O-SIL® and CAB-O-SPERSE® hydrophilic fumed silicahydrophilic fumed silica products are used around the world to meet challenging performance requirements. Due to their unique particle characteristics, our hydrophilic fumed silicas provide superior performance benefits for many types of applications, including:
Performance benefits
The versatility of our fumed silica is related to its wide range of surface areas and aggregate structure, both of which lead to unique performance benefits, including:
- Anti-settling, thickening and sag resistance
- Scratch and abrasion resistance
- Free-flow and anti-caking
- Corrosion resistance
- Enhanced adsorbency
- Reinforcement
Hydrophilic Fumed Silica
There are various grades of this substance, which are defined by their amorphous structure. It is used to provide thixotropic properties in coatings and adhesives. It also assists in enhancing flow in the production industry, such as cosmetics and pharmaceuticals.
This is a silica-based polymer with a tendency of absorbing moisture. It is used in high-technology fields or as an ingredient in paints, coatings, electronics and optical fibers industries.
Corrosionpedia Explains Hydrophilic Fumed Silica
Hydrophilic fumed silica, a light white powder, is brought about by the reaction of oxyhydrogen flame and volatile chlorosilanes (Silicon tetrachloride) to form molten spheres of silicon dioxide (and hydrogen chloride). The particle structure of the product depends on the place of application and the market. The variation of these sphere sizes is what brings about the grades.
The hydrophilic nature of fumed silica is a result of the attachment of hydroxyl groups onto silica atoms just at the surface of the particle; the product is now capable of hydrogen bonding—this makes it dispersible in water. This makes the product stable at room temperature, thus increasing the shelf life once opened.
By reacting hydrophilic fumed silica with reactive silanes, hydrophobic silica can be produced. The addition of this product in adhesives and coatings increases the surface energy adhesive force of the substrate.
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