Matting agent
Fumed Silica
Fumed silica, also known as pyrogenic silica, is a nanostructured form of silicon dioxide (SiO2) that is produced by the hydrolysis of silicon compounds in a flame of hydrogen and oxygen. The particles of fumed silica have a three-dimensional network structure, and they are interconnected to form aggregates with high surface area. The particle size of fumed silica typically ranges from 1 to 100 nanometers, which allows it to remain suspended in liquids or adhere to solid surfaces.
Application of Fumed Silica
- Fumed silica is widely used as a rheology modifier and thickening agent in various industries, including paints, coatings, adhesives, and sealants. It helps control viscosity, improve sag resistance, and enhance the stability of these formulations.
- Due to its high surface area and porosity, fumed silica is utilized as a reinforcing filler in rubber and elastomer applications. It improves mechanical properties such as tensile strength, tear resistance, and abrasion resistance.
- In the pharmaceutical industry, fumed silica is used as a pharmaceutical excipient in solid dosage forms, such as tablets and capsules. It aids in improving powder flow, compressibility, and dissolution rate of active pharmaceutical ingredients.
- Fumed silica is employed in the production of silicone rubber and silicone sealants. It enhances the mechanical strength, thermal stability, and electrical insulation properties of these materials.
- Fumed silica is utilized in the manufacture of adhesives and sealants to improve bonding strength, adhesion to different substrates, and resistance to environmental factors like moisture and temperature.
Application
Paints & Coatings
Printing inks
Power coating
Cosmetics
pharmaceuticals
