HIFULL®HB-701 (BET=150㎡/g)
HB-701 is surface-treated fumed silica with an active silanol group modified by special silane.
Properties
Characteristics
| Properties | Unit | Typical Value | Testing Standard |
| Specific surface area(BET) | m2/g | 150±25 | GB/T 20020 |
| pH in 4% dispersion | — | 4.0~6.0 | GB/T 20020 |
| Loss on drying(2 hours at 105℃) | % | ≤1.5 | GB/T 20020 |
| Silica content( based on ignited material) | % | ≥99.8 | GB/T 20020 |
| Tamped density(based on material dried for 2 hours at 105℃) | g/L | 40~60 | GB/T 20020 |
| Carbon content（based on material dried for 2 hours at 105℃） | % | 4.5～6.5 | GB/T 20020 |
Uses and Applications
Plastic & Elastomers
Dental composite materials
Functional Properties
Reinforcing filler in elastomers
Rheology control and thixotropic agent
Anti-settling,anti-sagging, and thickening agent
Free flow aid and anti-caking aid for powders
Related Product
Datasheet Download
Frequently Asked Question
A Manufacturer. Hubei Huifu has been researching and manufacturing fumed silica for 20+ years. We are the largest manufacturer of fumed silica in China, with a well-developed and stable manufacturing process.
We have registrations for EU-REACH, Turkey-REACH, K-REACH and UK-REACH. We get certificates of ISO 9001, ISO 14001. We are the leading setting body for ISO18473-3:2018, ISO23157:2021 and ISO18473-4:2022.
Free Sample: All grades of fumed silica sample available, Contact to Us
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.
Hydrophilic Fumed Silica SiO2:
Hydrophobic Fumed Silica SiO2:
Fumed Titanium Dioxide TiO2
Fumed Aluminium Oxide Al2O3
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: tww@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 40,000 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.
Still have questions?
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