Evonik ULTRASIL® 5000 GR Silicon dioxide

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Evonik ULTRASIL® 5000 GR Silicon dioxide
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	ULTRASIL 5000 GR is a mechanically compacted granulate. On account of the granulation process it leads to less dust development during mixing. ULTRASIL 5000 GR is a highly dispersible and reinforcing silica with a specific surface area of approximately 120 m²/g. Compared to standard silicas with a specific surface area of approximately 160 m²/g. ULTRASIL 5000 GR provides lower compound viscosities, ie an improved processing behavior at equal loading. Furthermore, lower dynamic stiffness at low ambient temperatures and improved rolling resistance are achieved for tire tread compounds. Higher silica loadings will improve wet traction properties and allow to optimize winter properties. Bifuctional organosilanes like Si 69®, Si 79®, Si 266® or VP Si 363® are required for the use of ULTRASIL 5000 GR in tired tread compounds. The use of diethylen glycol, triethanolamine or other alkaline accelerators might be necessary in order to achieve optimum in-rubber data. Application fields are: Tires, mechanical rubber goods. Information provided by Evonik
Vendors:

Available Properties
Density, ASTM D1513, Pour density pH, ISO 787-9, 5% in water Specific Surface Area, ISO 5794-1G, CTAB Specific Surface Area, ISO 9277, N₂ SiO2, ISO 3262-19

Property Data

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Manufacturer Notes:
Evonik Corporation (Former Evonik Degussa GmbH)

Category Notes
none

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