HIFULL® nano-alumina, as an important nano-functional material, has a positively charged surface and possesses properties such as anti-caking, flow aid, good dispersibility, and the ability to refract ultraviolet light.
HIFULL® fumed alumina products are available in a variety of specifications and are widely used in lithium battery separator ceramic coatings, electrode materials, powder coatings, printing inks, lighting phosphor coatings, meltblown electret masterbatches and heat-conducting plates, effectively improving the thermal stability, safety, dispersibility and electrical properties of materials.
|
Product Model |
HIFULL® Aluna-2301 |
HIFULL® Aluna-2302 |
HIFULL® Aluna-100HF |
HIFULL® Aluna-100C |
HIFULL® Aluna-100 |
HIFULL® Aluna-80 |
|---|---|---|---|---|---|---|
|
Specific Surface Area (BET) |
40 ± 10 m²/g |
55 ± 10 m²/g |
90 ± 10 m²/g |
100 ± 15 m²/g |
100 ± 15 m²/g |
80 ± 15 m²/g |
|
pH (4% dispersion) |
≥4.0 |
3.9–5.0 |
3.9–5.0 |
3.9–5.0 |
≥3.9 |
≥3.9 |
|
Loss on drying |
≤4.0% (300℃) |
≤45.0% (300℃, 2h) |
≤5.0% (300℃, 2h) |
≤5.0% (300℃, 2h) |
≤5.0% (300℃, 2h) |
≤2.5% (105℃, 2h) |
|
Loss on ignition |
— |
≤2.0% (1000℃, 2h) |
≤2.0% (based on 300℃ dried) |
≤2.0% (based on 300℃ dried) |
≤2.0% (based on 300℃ dried) |
≤2.0% (1000℃, 2h) |
|
Tamped density |
— |
60 ± 15 g/L |
60 ± 15 g/L |
60 ± 15 g/L |
60 ± 15 g/L |
50–80 g/dm³ |
|
Al₂O₃ Content (based on ignited material) |
≥98.0% |
≥98.0% |
≥98.0% |
≥98.0% |
≥98.0% |
≥98.0% |
|
Crystal Structure |
Mixed crystal structure |
Mixed crystal structure |
Mixed crystal structure |
Mixed crystal structure |
Anatase & rutile mixed |
Mixed crystal structure |
|
Key Properties |
Low specific surface area, high purity, positively charged surface |
Low specific surface area, high purity, positively charged surface |
High purity, low iron ion content, positive surface charge |
High specific surface area, high purity, good dispersion |
High specific surface area, positive surface charge, superfine particle size |
High specific surface area, positive surface charge, good dispersion performance |
Fumed alumina, or pyrogenic aluminum oxide, is one kind of pure amorphous white inorganic powder that has a high specific surface area, nano-scale primary particle size, and a well-defined surface chemistry rich in Lewis acid sites and hydroxyl groups. The properties of fumed alumina can be chemically modified through surface treatment, offering tailored hydrophilicity or hydrophobicity for diverse applications.
Synonyms: Pyrogenic alumina, Aluminum Oxide, Fumed Al₂O₃, Alumina nanopowder
Chemical Formula: Al₂O₃
CAS Number: 1344-28-1
Our main products are fumed silica SiO2, fumed titanium dioxide TiO2, and fumed alumina Al2O3. We get 20+ years of expertise and 20,000 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.
Whether you need a data sheet, pricing, regulatory documents, or just some product info, we’re here to help in any way possible. If filling out one of our handy forms isn’t for you, Complete our quote request form or email us at hfdzsw@hifull.com to receive a customized quote from our product specialists.
A Manufacturer. Hubei Huifu has been researching and manufacturing fumed silica for 20+ years. We are the largest manufacturer of fumed silica with a well-developed and stable manufacturing process in China.
We get registration of REACH and pre-registration of K-REACH & KKDIK. We get certificates of ISO 9001, ISO 14001. We are the leading setting body of ISO18473-1:2015, ISO18473-3:2018 and ISO 23157:2021.
Pyrohydrolysi & Trichloromethylsilane
Fumed silica is synthesized by the pyrohydrolysis of silicon tetrachloride or trichloromethylsilane in the flame of hydrogen and oxygen. Our main raw material is silicon tetrachloride, and the secondary is trichloromethylsilane.
HL-150 / HL-200 / HL-300 / HL-380 / HL-150W / HL-200W
DDS Treated — HB-151/ HB-152 ;
PDMS Treated — HB-139 ;
HMDS Treated — HB-132 / HB-135 / HB-612/ HB-615 / HB-620 / HB-630.
Price is based on the actual grade.
When the price of raw material fluctuates, we may adjust the price accordingly, please enquire before placing orders. Our email: hfdzsw@hifull.com. Cell : +86 15671056880
When fumed silica is used as filler or additives, it helps in thickening, reinforcement, transparency, free-flow, thixotropic performance, dielectric properties, anti-settling, heat insulation, and anti-sagging. For example, for powder products, HIFULL fumed silica is used as an anti-caking agent; for liquid products, HIFULL fumed silica is used as an anti-settling agent or suspending agent.
| Applications | Functions | Recommended Dosage |
| Paints & Coatings | rheology & thixotropic control,anti-sagging,anti-settling | 0.5-2% |
| UPR, Gel Coat | rheology & thixotropic control,,anti-sagging,anti-settling | 0.5-2% |
| HTV Silicone Rubber | reinforcement | 15-30% |
| RTV Silicone Rubber | thickening & reinforcing | 10-20% |
| Adhesives | rheology & thixotropic control, anti-sagging,anti-settling | 2-10% |
| Cable Gel | thickening | 5-10% |
| Gel Battery | thickening | 0.5-6% |
| Industrial Powders | anti-caking | 0.5-1% |
Quality Stabilization: we are the earliest fumed silica manufacturers with independent R&D in China, which guarantees our product stabilization.
Largest Manufacturer: Our annual output of fumed silica is about 12,000 tons.
Strong R&D Team: Besides our own R&D institute and application& technology department, we’ve to build a research center with Sichuan University and Wuhan University, both are top-tier universities in China.
Leading Authority: We have already been the influential enterprise in the silicon industry in China. Doctor Wang Yuelin, the actual controller of Hifull, is the leader of the Sino-Germany project ISO18473-3 << Fumed Silica for Silicon Rubber>> and he is granted the Outstanding Contribution Award by the committee.
Mainly T/T, L/C and D/P, actual payment terms please check with sales when placing orders.
We will arrange delivery immediately according to the manufacturing schedule and conditions. Due to shipping schedule or other factors, please check with sales when placing orders.
Complete our quote request form or email us at hfdzsw@hifull.com to receive a customized quote from our product specialists.
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