About Fumed Silica
The resulting powder has an extremely low bulk density and high surface area. Its three-dimensional structure results in viscosity-increasing, thixotropic behavior when used as a thickener or reinforcing filler.
Hydrophobic silica is a form of silicon dioxide (commonly known as silica) that has hydrophobic groups chemically bonded to the surface. The hydrophobic groups are normally alkyl or polydimethylsiloxane chains. Hydrophobic silica can be processed in different ways; such as fumed silica, precipitated silica, and aerosol assisted self assembly, all existing in the form of nanoparticles.
Hydrophobic silica is used to solve technical problems in a number of products including, but not limited to, paints, inks, adhesives, plastics, coatings, toners, defoamers, silicone rubber, sealants, cosmetics, food additives, polyester resins, cable gels, and greases. It’s often manufactured as both single and multiphase composites in order to enhance properties such as dispersion, stability behavior, resistance to water, and functionality.
Click image of the graph below to view full Fumed Silica Tech Info
|Specific surface area (BET) m²/g||Average particle size nm||Tapped density g/l||Ignition loss wt%||Carbon content wt%||Moisture wt%||pH||Si0₂ content wt%|
|AMSil-F H22||130 ± 30||12||50||4.0-6.0||3.5-5.0||≤ 0.5||4.0-6.0||≥ 99.8|
|AMSil-F H21||100 ± 20||14||50||4.0-6.0||3.5-5.0||≤ 0.5||4.0-6.0||≥ 99.8|
Click image of the graph below to view full Fumed Silica Application
|Adhesives||Defoamers Anti-foams||Silicone Rubber||Sealants||Paint & Coatings||Plastics||Printing Inks & Toners||Cable Gels and Gel Coats||Cable Compound||Plant Protection||Epoxy Resins|