Rubber Grade High Dispersion Silica with Micro Pearl Precipitated Silica
Chemical Properties
High Dispersion Silica is soluble in caustic alkali and hydrofluoric acid, insoluble in acids, water and various solvents. Resistance to high temperature,no combustion, good insulation properties.
Specifications
| High Dispersion Silica with Micro Pearl |  |
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| Type | HD115 | HD165 | HD210 | |
| Specific surface area，m²/g | 120±15 | 160±15 | 210±15 | |
| Sieve residue，% | 60 Mesh | – | ||
| 100 Mesh | ≥80 | |||
| SiO2 % Min，% | ≥97 | |||
| Heating loss（105° 2h）, % | 4.0-8.0 | |||
| Lgniting loss（1000° 2h）, % | ≤7.0 | |||
| pH（5% suspension） | 6.0-8.0 | |||
| DBP Absorption，cm³/g | 2.00-2.80 | 2.00-2.80 | 2.00-3.00 | |
| Salt as NA2SO4，% | ≤ 2.0 | |||
Application
- High Dispersion Silica with Micro Pearl is a high dispersion, high purity precipitated silica.
- It can significantly improve the wear resistance of the rubber compound, resistant to flexion performance, heating oxidation, instead of a large number of carbon black for high-performance tires, which can effectively reduce tire rolling resistance and reduce fuel consumption and improve the wet skid resistance and safety performance.
- More of its outstanding performance is especially in the low rolling resistance of passenger cartires, winter tires, and other applications.
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