HB-620
Characteristics
HB-620 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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
Physical & Chemical Data
Properties | Unit | Typical Value | Testing Method |
pH value in 4% dispersion (H2O:Ethanol=1:1) | - | 5.5~8.0 | GB/T 20020 |
Loss on drying(2 hours at 105℃) | % | ≤0.5 | GB/T 20020 |
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) | % | ≤4.0 | GB/T 20020 |
Silica Content(Based on ignited material) | % | ≥99.8 | GB/T 20020 |
Tamped Density(Based on material dried at 105℃ for 2 hours) | g/dm³ | 40~60 | GB/T 20020 |
Carbon Content (Based on material dried at 105℃ for 2 hours) | % | 1.5~2.5 | GB/T 20020 |
НАСЧЕТ НАС
ООО «YICHANG HUIFU Силикон Материал» является национальным высокотехнологичным предприятием, специализирующимся на производстве коллоидного диоксида кремния, нанопорошка.
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