ULTRASIL® 360Precipitated silica for use as a reinforcement filler in the rubber industry. - Medium-active precipitated silica, suited in particular for injection molding and calandering mixtures as well as for soft roll processes. Character: Low specific surface.Scope of application:Medium-active precipitated silica, suited in particular for injection molding and calandering mixtures as well as for soft roll processes. ULTRASIL® 360 has a significantly lower specific surface compared to highly active precipitated silicas. Easy processing ULTRASIL® 360 mixtures are easier to extrude, and calander or use in injection molding processes also means higher filling grades. The product results in lower residual deformation and excellent dynamic characteristics in vulcanized rubber goods.Highly Dispersible SilicaThe increasing demands on high specification tires requires novel tread compounds, which grant low rolling resistance, good winter performance, long service life and excellent handling properties on wet and dry surfaces.HD Silica developed by Evonik meet these requirements in combination with a bifunctional Silane as coupling agent . Especially with regard to highly efficient mixing cycles and in particular in order to achieve a very good abrasion resistance level, today HD Silica is essential.ULTRASIL® 5000 GRPrecipitated silica for use as a reinforcement filler in the rubber industry.Due to the low specific BET surface area of approximately 115 m2/g the highly dispersible ULTRASIL® 5000 GR combines excellent hysteresis performance and high reinforcement with improved processing behavior in passenger car tire tread compounds. This silica is especially suited to high filler loadings for the optimization of wet and winter properties. ULTRASIL® 5000 GR is only being produced in Asia.ULTRASIL® 7000 GRPrecipitated silica for use as a reinforcement filler in the rubber industry.ULTRASIL® 7000 GR is a highly reinforcing silica which was especially developed for application inlow rolling resistant passenger car tire tread compounds, so called “Green Tire”. With a specific BET surface area of approximately 170 m2/g this silica imparts to tread compounds in combination with bifunctional silanes high abrasion resistance combined with excellent rolling resistance and wet traction.Conventional SilicateMetal Silicates are obtained by replacing a part of the acid used during the precipitation by metallic salts. In rubber mixtures these silicates offer processing and product properties which could only hardly be achieved by pure Silica.ULTRASIL® 880Precipitated silica for use as reinforcement filler in the rubber industry.ULTRASIL® 880 is a precipitated silica with a Calcium admixture and a very low specific BET surface area of approximately 35 m2/g. It gives rubber mixtures excellent residual deformation and extrusion characteristics. ULTRASIL® 880 allows profiles with virtually no swelling and a very smooth surface. Even EPDM mixtures with extremely high filling grades (up to 200 parts per hundred rubber) can still be easily processed. In white mixtures, ULTRASIL® 880 can partially be substituted for titanium dioxide. The effect of sulfur adsorption is negligible.ULTRASIL® AS 7Precipitated sodium aluminum silicate for use as a reinforcement filler in the rubber industry.ULTRASIL® AS 7 is a precipitated aluminum silicate with a low specific BET surface area of approximately 60 m2/g. It combines medium reinforcement properties with particularlytrouble-free handling and processing. The latter allows for higher filler parts than would be possible with highly active precipitated silica. Blending with ULTRASIL® VN 3 or inactive fillers makes it possible to adjust the reinforcement effect within a wide range.ULTRASIL® VN 2Precipitated silica for use as reinforcement filler in the rubber industry. - Ultrasil VN 2 significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance.Scope of application:ULTRASIL® VN 2 has a reinforcement potential that is only marginally lower than that of ULTRASIL® 3, which has a higher surface. It significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance. Activators must be added to achieve optimum rubber properties, e.g. glycols, amine or other base accelerators. ULTRASIL® VN 2 GRUltrasil® VN 2 GR significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance, while preserving mixture viscosity and processing benefits.Scope of application:ULTRASIL® VN 2 GR has a reinforcement potential that is only marginally lower than that of ULTRASIL® VN 3, which has a higher surface. It significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance, while preserving mixture viscosity and processing benefits. Activators must be added to achieve optimum rubber properties, e.g. glycols, amine or other base accelerators.ULTRASIL® VN 3Precipitated silica for use as reinforcement filler in the rubber industry.Ultrasil® VN 3 has a high reinforcement potential and significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance.Scope of application:ULTRASIL® VN 3 has a high reinforcement potential and significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance. Activators must be added to achieve optimum rubber properties, e.g. glycols, amine or other base accelerators. With the appropriate mixture composition, ULTRASIL® VN 3's higher surface means vulcanized goods have greater transparency.ULTRASIL® VN 3 GRPrecipitated silica for use as reinforcement filler in the rubber industry. Granulation means less dust build-up during processing as well as a higher compression density versus powdered forms. Scope of application:ULTRASIL® VN 3 GR has a high reinforcement potential and significantly enhances rubber mixtures in terms of Shore hardness, tensile strength, tear resistance and abrasion resistance. Activators must be added to achieve optimum rubber properties, e.g. glycols, amine or other base accelerators. With the appropriate mixture composition, ULTRASIL® VN 3 GRS's higher surface means vulcanized goods have greater transparency.。
