Henan Minmetals East New Materials CO. LTD.
Henan Minmetals East New Materials CO. LTD.
Payment Type:L/C,T/T
Incoterm:FOB,CFR,CIF
Min. Order:100 Kilogram
Transportation:Ocean,Land,Air,Express
Port:QINGDAO,SHANGHAI,GUANGZHOU
$10≥100Kilogram
Brand: HJSIL® FUMED SILICA
Place Of Origin: China
Grade: Industrial Grade
Packaging: 10KG
Transportation: Ocean,Land,Air,Express
Supply Ability: 100 MT / MONTH
HS Code: 28112290
Port: QINGDAO,SHANGHAI,GUANGZHOU
Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF
After hydrophobic modification, the silanol groups on the surface of fumed silica are replaced by organic groups such as methyl groups, which improves the compatibility of the modified fumed silica with the RTV system and makes the hydrophobic fumed silica easy to disperse as the hydrophobicity increases, the transparency of RTV increases slightly. On the other hand, when hydrophobic fumed silica is used as filler, the storage stability of RTV will be greatly improved due to the relatively few surfaces active silanol groups of hydrophobic fumed silica, and its viscosity after 6 months of storage remained almost unchanged.
Features in sealant
Easy to disperse, easier to mix with other materials
Increase the transparency of clear silicone glue
Extend the life of silicone rubber
Ensure product quality stability of silicone rubber
Physical and chemical data of Aerosil Fumed Silica:
| Properties and test methods | Unit | Typical Value | Standardization |
| Specific surface area (BET) | m2/g | 110 ± 25 | GB/T 20020 |
| pH value (in 4% dispersion) | 5.5 ~ 7.0 | GB/T 20020 | |
| Loss on drying (2 hours at 105 °C) | Wt% | ≤ 1.0 | GB/T 20020 |
| Loss on ignition (2 hours at 1000 °C,based on material dried for 2 hours at 105 °C) | Wt% | ≤ 4.0 | GB/T 20020 |
| Sieve residue (45 μm) | mg/kg | ≤ 250 | GB/T 20020 |
| Silica content (based on ignited material) | Wt% | ≥ 99.8 | GB/T 20020 |
| Tamped density (based on material dried for 2 hours at 105 °C) | g/dm³ | 40 ~ 60 | GB/T 20020 |
| Carbon content (based on material dried for 2 hours at 105 °C) | Wt% | 4.0 ~ 7.0 | GB/T 20020 |
Minmetals East New Materials Fumed Silica Production Base, the main products provided include hydrophilic silica, hydrophobic silica, and various custom-developed silica products. The silicas are widely used in paints, inks, coatings, adhesives and sealants, unsaturated resins, cosmetics, defoamer, electronic packaging, pesticides, medicine, fertilizer, feed and other industries. The first sales of HJSIL fumed silica products started in 2007 and our users and customers are from more than 50 countries around the world.
Comparison Table
Hydrophilic
HJSIL
Wacker
Cabot
Evonik
TOKUYAMA
HJSIL 150
V15
LM-150
Aerosil 150
Reolosil QS10
HJSIL 200
N20
M-5
Aerosil 200
Reolosil QS102
HJSIL 300
T30
H-5
Aerosil 300
Reolosil QS30
HJSIL 380
T40
EH-5
Aerosil 380
Reolosil QS40
Hydrophobic
HJSIL R110
H18
TS-720
Aerosil R202/R208
DM-20
HJSIL R272
H15
TS-610
Aerosil R 972
DM15
HJSIL R274
H20
/
Aerosil R 974
/
HJSIL R620
/
/
/
/
HJSIL R622
/
/
Aerosil R 812
/
Hydrophilic Fumed Silica
| HJSIL grades | BET surface area [m2/g] | Loss on drying [wt.%] | pH | Carbon content [wt.%] | Loss on ignition [wt.%] | Sieve residue [wt.%] | Silica content [wt.%] | Tamped density [g/L] |
| HJSIL 150 | 150 ± 25 | ≤ 1.5 | 3.6 ~ 4.5 | ≤ 0.2 | ≤ 2.5 | ≤ 0.05 | ≥ 99.8 | 40 ~ 60 |
| HJSIL 200 | 200 ± 25 | ≤ 1.5 | 3.6 ~ 4.5 | ≤ 0.2 | ≤ 2.5 | ≤ 0.05 | ≥ 99.8 | 40 ~ 60 |
| HJSIL 300 | 300 ± 25 | ≤ 1.5 | 3.6 ~ 4.5 | ≤ 0.2 | ≤ 2.5 | ≤ 0.05 | ≥ 99.8 | 40 ~ 60 |
| HJSIL 380 | 380 ± 30 | ≤ 1.5 | 3.6 ~ 4.5 | ≤ 0.2 | ≤ 2.5 | ≤ 0.05 | ≥ 99.8 | 40 ~ 60 |
Hydrophobic Fumed Silica
| HJSIL grades | BET surface area [m2/g] | Loss on drying [wt.%] | pH | Carbon content [wt.%] | Silica content [wt.%] | Tamped density [g/L] | Loss on ignition [wt.%] | Treated with |
| HJSIL R110 | 100 ± 20 | ≤ 0.5 | 4.0 ~ 7.0 | 3.5 ~ 5.5 | ≥ 99.8 | 40 ~ 60 | ≤ 4.0 | PDMS |
| HJSIL R272 | 110 ± 20 | ≤ 0.5 | 3.8~ 5.0 | 0.6 ~ 1.2 | ≥ 99.8 | 40 ~ 60 | ≤ 2.0 | DDS |
| HJSIL R274 | 170 ± 20 | ≤ 0.5 | 3.8 ~ 5.0 | 0.7 ~ 1.3 | ≥ 99.8 | 40 ~ 60 | ≤ 2.0 | DDS |
| HJSIL R620 | 180 ± 20 | ≤ 0.5 | 5.5 ~ 7.5 | 1.6 ~ 2.0 | ≥ 99.8 | 40 ~ 60 | ≤ 4.0 | HMDS |
| HJSIL R622 | 260 ± 30 | ≤ 0.5 | 5.5 ~ 7.8 | 2.8 ~ 4.0 | ≥ 99.8 | 40 ~ 60 | ≤ 4.0 | HMDS |
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