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Hydrophobic Fumed Silica Powder As Low Thickening Effect Used For Silicone Rubber
Introduction
HB-135 is a structure modified hydrophobic fumed silica
Application
Silicone Rubber
Adhesives and Sealants
Defoamers
Toner
Properties
1, Low thickening effect and excellent processability enable high loading in polymers.
2, Excellent reinforcing properties in silicone rubber applications especially at high filler loading levels(ETV-1, ETV-2, LSR)
3, Well suited for transparent systems
4, Free-flow aid for powders.
Physical and Chemical Data
| Property | Unit | Typical Value |
| Specific Surface area(BET) | m2/g | 210±30 |
| PH- Value in 4% Dispersion | 7.0-8.5 | |
Moisture(2 hours at 105℃) | wt% | ≤0.5 |
Loss on ignition( 2 h@1000℃,based on material dried for 2h@105℃) | Wt% | ≤8.0 |
| Sio2 Content(Based on ignited material) | wt% | ≥99.8 |
| Carbon content(based on material dried for 2h @105℃) | Wt% | 3.5-6.5 |
