Hydrophobic Fumed Silica is a versatile material that offers unique properties due to its high surface area and water-
repellent nature. Its applications are diverse, ranging from industrial coatings to personal care products.
Hydrophobic Fumed Silica is a versatile material that has a wide range of applications in various industries. It is a form of
silica that has been treated to have hydrophobic properties, meaning it repels water and is not easily wetted.
One of the main uses of hydrophobic fumed silica is as a thickening and reinforcing agent in various products. It is commonly
used in adhesives, sealants, and coatings to improve their viscosity and provide better stability. The hydrophobic nature of the
silica allows it to disperse evenly and provide excellent reinforcement without affecting the water resistance of the final product.
In addition to its thickening and reinforcing properties, hydrophobic fumed silica is also used as an anti-settling agent. It helps to
prevent settling or sedimentation of solid particles in liquids, ensuring a stable and homogeneous mixture. This makes it useful in
paints, inks, and other liquid formulations where maintaining consistency is crucial.
Another important application of hydrophobic fumed silica is in the production of silicone rubber and elastomers. It is used as a
filler to improve the mechanical properties of the rubber, such as tensile strength, tear resistance, and abrasion resistance. The hydrophobic nature of the silica also helps to reduce the moisture absorption of the rubber, making it more durable and long-lasting.
Furthermore, hydrophobic fumed silica finds application in the pharmaceutical and cosmetics industries. It is used as an excipient in tablets and capsules, providing improved flowability and compressibility. In cosmetics, it is used as a thickening agent in creams,
lotions, and gels, providing a smooth and luxurious texture.
Overall, hydrophobic fumed silica is a versatile material that offers numerous benefits in various industries. Its hydrophobic properties, along with its thickening, reinforcing, and anti-settling capabilities, make it a valuable component in a wide range of products.
Physical and Chemical Data
| Property | Unit | Typical Value |
| Specific Surface area(BET) | m2/g | 110±15 |
| PH Value in 4% Dispersion | / | 5.5-7.5 |
| Moisture(2 hours at 105℃) | wt% | ≤1.5 |
| Loss on ignition(2 h at 1000℃,based on material dried for 2h at 105℃) | wt% | ≤10 |
| Sio2 Content(Based on ignited material) | wt% | ≥99.8 |
| Carbon content(based on material dried for 2h at 105℃) | wt% | 4.5-6.5 |
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
