Hydrophobic Fumed Silica HB-132
Fumed Silica
HB-
132
Characteristic
FM-H-B132 is hydrophobic fumed silica which is produced by hydrophilic fumed silica with specific surface
area of 200m²/g after chemical post-treatment with HMDS(Hexamethyldisilazane).
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Applications |
Properties |
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● silicone rubber |
● Low thickening effect and excellent processability enable high loading in polymers |
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● Defoamer |
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● Toner |
● Excellent reinforcing properties in silicone rubber especially at high filler loading levels |
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● Adhesives & sealants |
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● High transparency |
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● Free flow aid for powders |
Physical and Chemical Data (Standard :GB/T 20020)
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Test Item |
Unit |
Typical Value |
|
Specific Surface Area(BET) |
m²/g |
140±20 |
|
Carbon Content(Based on material dried at 105℃ for 2 hours) |
% |
2.0～4.0 |
|
pH value in 4% dispersion |
-- |
6.0～9.0 |
|
Loss on drying( 2 hours at 105℃) |
% |
≤ 0.7 |
|
Loss on ignition (2 hours at 1000℃, based on material dried for 2 hours at 105℃) |
% |
≤ 4.0 |
|
Tamped Density (Based on material dried at 105℃ for 2 hours) |
g/L |
40～60 |
|
Silica Content (Based on ignited material) |
% |
≥ 99.8 |
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