Henan Minmetals East New Materials CO. LTD.
Henan Minmetals East New Materials CO. LTD.
Payment Type:L/C,T/T,D/P
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,D/P
Incoterm: FOB,CFR,CIF
HJSIL R274 is a hydrophobic fumed silica after-treated with Dimethyldichlorosilane (DDS). It is one of our Silicon Dioxide with Hydrophobic Groups.
The surface of hydrophilic fumed silica contains a large number of hydroxyl groups and polar groups, which makes it easy for the primary particles to collide with each other and aggregate together to form secondary aggregates, which affects the uniformity of fumed silica in organic polymers. Dispersion can not meet the special needs of some industries, so it is necessary to carry out chemical modification on the surface of fumed silica to make the surface of fumed silica change from hydrophilic to hydrophobic, so as to improve the nano-fumed silica.
Physical and chemical data:
| Properties and test methods | Unit | Typical Value | Standardization |
| Specific surface area (BET) | m2/g | 170 ± 25 | GB/T 20020 |
| pH value (in 4% dispersion) | 3.8 ~ 5.0 | 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% | ≤ 2.0 | 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% | 0.7 ~ 1.3 | GB/T 20020 |
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