HIFULL Hydrophilic Fumed Silica
Hydrophilic fumed silica 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.
There are various grades of hydrophilic fumed silica, 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.
HYDROPHILIC FUMED SILICA
For the total 6 grades of HIFULL hydrophilic fumed silica, the main difference lays in the specific surface area, which affects its functions, such as thickening performance, thixotropic properties.
*Registrations: HIFULL fumed silica products get registrations of REACH & Pre-registration of K-REACH &KKDIK
|HIFULL Hydrophilic fumed silica||Unit||HL-150||HL-200||HL-300||HL-380||HL-150W||HL-200W|
|Specific surface area(BET)||m2/g||150±15||200±20||300±25||380±30||150±10||200±15|
|pH value in 4% dispersion||3.9～4.5||3.9～4.5||3.7～4.5||3.7～4.5||3.9～4.5||3.9～4.5|
|Loss on drying*2 hours at 105℃||%||≤1.5||≤2.0||≤2.0||≤2.5||＜1||＜1.5|
|Loss on ignition*2 hours at 1000℃||%||≤2.0||≤2.0||≤2.5||≤2.5||＜2.0||＜2.0|
|Sio2 content* Based on ignited material||%||≥99.8||≥99.8||≥99.8||≥99.8||≥99.8||≥99.8|
|Sieve residue (45μm)||mg/kg||≤250||≤250||≤250||≤250||≤300||＜300|
Fumed silica, or pyrogenic silicon dioxide, is one kind of pure amorphous white inorganic powder that has a high specific surface area, nano-scale primary particle size, and a relatively high (among silica products) concentration of surface silanol groups. The properties of fumed silica can be chemically modified by reaction with these silanol groups.
Commercial available fumed silica can be divided into two groups: hydrophilic fumed silica and hydrophobic fumed silica. Because of the above-mentioned features, it is widely used as an important ingredient in many industries such as silicone rubber, paint, and plastics industries.
Hubei Huifu Nanomaterial Co., Ltd., is a joint-stock company established by the reform of Yichang Huifu Silicon Materials Co., Ltd. We are specialized in manufacturing nanomaterials. We are National High-tech Enterprise, vice president unit of China Association of Fluorine and Silicon Industry (CAFSI), and National Innovative Incubation Base of Fumed Silica.
Our main products are fumed silica SiO2, fumed titanium dioxide TiO2, and fumed alumina Al2O3. We get 20+ years of expertise and 12,000 tons of annual capacity. We supply total of 23 grades of hydrophilic & hydrophobic fumed silica. We get registration of REACH and pre-registration of K-REACH & KKDIK. We are the leading setting body of ISO18473-1:2015, ISO18473-3:2018, and ISO 23157:2021.