Hydrophobicity Fumed Silica Functional Test | China-made Vs International Brand
It’s always popular to compare Made-in-China brands with international brands. Have China brands managed to surpass or do international brands continue to maintain their lead? The answer is subjective and open to different perspectives.
So, when China-made hydrophobic fumed silica meets two major international competitors, how will their hydrophobic properties perform?
Here we have international competitors A and B, and HIFULL HB-139 represents the Made-in-China one, It is Polydimethylsiloxane / PDMS-treated fumed silica
HIFULL® HB-139 (BET=180㎡/g)
- Add HIFULL HB-139, competitor A, and competitor B into acrylic acid coating at the same proportions
- uniformly disperse first and then defoam them
- apply the three coating samples evenly onto tinplates respectively dry them,
- place the coated tinplates on the contact angle goniometer
- As the water droplet falls from the contact angle goniometer,
- a semi-oval shape shows on the surface of the tinplate coated with HIFULL HB-139/
- Even after two more droplets are added, the water droplet still retains its semi-oval shape
- This demonstrates excellent hydrophobic properties of HIFULL HB-139
Next, let us use software to test the value of the contact angles of these three samples
The final result is showing on the screen, the larger its contact angel, the better its hydrophobicity
HIFULL HB-139 is 80°, higher than International competitor A and lower than B, HIFULL fumed silica also has good performance in quality
Related Products
Hubei Huifu Nanomaterial Co., Ltd. manufactures more than 10 grades of fumed silica, both hydrophilic and hydrophobic. We get ISO, REACH, and participate in setting ISO18473-3-2018, ISO18473-1-2015, and ISO23157. We are strong in R&D product quality and factory capacity. Feel free to contact us by email: tww@hifull.com
ABOUT HIFULL
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. Learn More About Hifull
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 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.
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:
HL-150 / HL-200 / HL-300 / HL-380 / HL-150W / HL-200W
Hydrophobic Fumed Silica SiO2:
DDS Treated — HB-151/ HB-152 ;
PDMS Treated — HB-139 ;
HMDS Treated — HB-132 / HB-135 / HB-612/ HB-615 / HB-620 / HB-630.
Fumed Titanium Dioxide TiO2: NT-50
Fumed Aluminium Oxide Al2O3: Aluna-80 & Aluna-100
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: hifull@hifull.com. Cell : + 8618571019514
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.
Still have questions?
If you cannot find an answer to your question in our FAQ, you can always contact us and we will be with you shortly.
