| CAS No.: | 7631-86-9 |
|---|---|
| Appearance: | Powder |
| Usage: | Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals |
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Product description
HB4620 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with HMDS (Hexamethyldisilazan-).
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Specification |
IOTA HB4620 |
|
Specific sunface area(BET), m2/g |
170 |
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pH value in 4% dispersion |
5.5~8.0 |
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Loss on drying(2 hours at 105ºC), % |
≤0.5 |
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Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), % |
≤4.0 |
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Sieve Residue(45μm), mg/kg |
- |
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Silica Content(Based on ignited material), % |
≥99.8 |
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Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm² |
40~60 |
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Carbon Content (Based on material dried at 105ºC for 2 hours), % |
1.5~2.5 |
Applications
HTV silicone rubber & LSR
Coatings & printing ink
Adhesives & Sealants
Powder Coatings
Properties
Reinforcing filler for elastomer
High hydrophobicity and stable thixotropy
Anti-settling, anti-sagging agent in coatings and printing ink
Free flow aid and anti-caking aid for powders
Rheological control for adhesives and sealants
Package
White kraft paper bag, 10KG/Bag
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