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Factory Supply Fumed Silica Powder Hydrophobic/Hydrophilic Silicon Dioxide
Basic information:
Fumed silica (fumed white carbon black) is one of the most important high-tech ultrafine inorganic new materials. Due to its small particle size, it has a large specific surface area, strong surface adsorption force, large surface energy, high chemical purity, good dispersion, thermal resistance, resistance and other aspects of its specific properties. It has unique characteristics in many disciplines and fields and plays an irreplaceable role.
Specification
| Test Item | Standard Requirements | Test Results | |
| Specific Surface Area(m2/g) | 200±20 | 213 | |
| Appearance | White Powder | ||
| pH Value | 3.7~ 4.5 | 4.12 | |
| Loss on Drying @ 105ºC (%) | ≤ 1.5 | 0.79 | |
| Loss on Ignition @ 1000ºC (%) | ≤ 2.0 | 0.72 | |
| Sieve Residue (%) | ≤ 0.05 | 0.01 | |
| Tamped Density (g/l) | 40~ 60 | 41.2 | |
| SiO2 Content (%) | ≥ 99.8 | 99.9 | |
| Carbon Content (%) | ≤ 0.15 | 0.002 | |
| Chloride Content (%) | ≤ 0.02 | 0.001 | |
| Oxide Content (%) | Al2O3 | ≤ 0.03 | <0.01 |
| TiO2 | ≤ 0.02 | 0.01 | |
| Fe2O3 | ≤ 0.003 | <0.001 | |
Application:
As a thixotropic agent and thickening agent of liquid, anti-sedimentation, anti-flow hanging;
Used as dispersion and grinding AIDS;
Improve coating corrosion resistance;
Improve powder fluidity and storage stability;
Improve powder charge and charge stability;
Improve water resistance;
Improve the scratch resistance of the paint film;
Improve the bright color;
Fixed special effect;
Improve the physical and mechanical properties of the paint film;
Improve adhesion and flexibility of paint film;
Improve rubber, elastomer viscoelastic properties, reinforcing;
Defoaming effect in defoaming agent;
Improve the surface hardness of the coating, scratch resistance;
Prevent adhesion in film and elastomer;
As an adsorbent and carrier;
For inkjet printing coating;
As an advanced filler for dental materials;
As a catalyst carrier, significant thermal insulation, for low and high temperature insulation.
Storage
Silica should be stored in a dry, airtight environment, not exposed to volatile substances.
Certificate
The products have been approved by FDA,REACH,ROSH,ISO and other certification, in line with national standards.
Advantage
Quality First
Competitive Price
First-class Production Line
Factory Origin
Customized Services
Factory
Packing
1kg/ bag; 25kg/ barrel;
20 tons/1×20‘FCL Shipment.
FAQ:
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
