Fumed silica
First, the main varieties of fumed silica (silica):
HM-150 HM-200
HM-300 HM-380
Second, packaging materials and specifications:
1.10Kg/charter bag, made of PP material or kraft paper, can be transported in bulk.
2. Generally, every 20 packs are packaged into one tray, that is, 200Kg/t.
3. It can also be packaged according to the packaging form and specifications required by the customer.
Carbon black manufacturer product HM-380 product introduction
model | HM-380 |
name | Fumed silica |
Physicochemical properties | HM-380 is a hydrophilic fumed silica with a specific surface area of 380 m2/g and is a high purity white powder. |
use | Used in coatings and paints, silicone rubber and other elastomers, cable and unsaturated polyester resins, adhesives and sealants, inks, etc. |
Usage and function | This product can be used as a reinforcing material for elastomers; rheology and thixotropic additives; dustproof, anti-sagging, thickening; improve the free flow of powder and prevent agglomeration; Good transparency and so on. . |
Gas-phase white carbon black technical indicators
Till indicator Project | HM-150 | HM-200 | HM-300 | HM-380 | Detection method |
Specific surface area（BET）m2/g | 150±30 | 200±30 | 300±30 | 380±30 | GB/T20020-2005 |
Suspension pH（4%） | 3.6~4.5 | 3.6~4.5 | 3.6~4.5 | 3.6~4.5 | ISO787-9 |
Dry reduction (drying at 105 ° C for 2 h)% | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 | ISO787-2 |
Reduction by burning (burning at 1000 ° C for 2 hours, based on product dried at 105 ° C for 2 h)% | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ISO3262-1 |
Sieve residue（45μm ）% | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 | ISO787-18 |
Silica content (based on products after burning)% | ≥99.8 | ≥99.8 | ≥99.8 | ≥99.8 | ISO3262-20 |
Performance density (based on product dried at 105 ° C for 2 h)g/L | 25~60 | 25~60 | 25~60 | 25~60 | ISO787-11 |
Carbon content (product based on drying at 105 ° C for 2 h)% | ≤0.2 | ≤0.2 | ≤0.2 | ≤0.2 | ISO3262-20 |
