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Hydrophobic Fumed Silica HB-139
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Number of views:
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Product serial number
Category
Hydrophobic fumed silica
Quantity
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+
Stock:
1
Product description
Characteristics
HB-139 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with PMDS (Polydimethylsiloxane).
Applications
Silicone rubber
Coatings and printing ink
Adhesives and Sealants
Greases and cable gel
Unsaturated resin
Powders
Properties
Good thickening and thixotropy property
Good anti-sagging properties and excellent stability in epoxy resin
Excellent reinforcing properties in silicone rubber especially at high filler loading levels and no crepe hardening on aging
Good transparency performance
Free-flow property for water-proof material and powders
Physical & Chemical Data
Properties | Unit | Typical Value | Testing Method |
pH value in 4% dispersion (H2O:Ethanol=1:1) | - | 5.5~7.5 | GB/T 20020 |
Loss on drying(2 hours at 105℃) | % | ≤1.5 | GB/T 20020 |
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) | % | ≤10 | 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) | % | 4.5~6.5 | GB/T 20020 |
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Time of issue:2019-08-14 00:00:00
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Time of issue:2019-08-14 00:00:00
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