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Dow Buna® SB 1721 Cold polymerized Emulsion Styrene Butadiene Rubber (E-SBR)

 

Subcategory: Elastomer, TPE; Styrene-Butadiene; Thermoplastic

Material Notes:
Buna® SB 1721 - Schkopau is manufactured by cold polymerization using mixed rosin acid / fatty acid soaps. It is plasticized with 37.5 parts of an aromatic oil in relation to solid rubber. A discoloring stabilizer is added during the production process. Buna® SB 1721 - Schkopau is recommended for tire applications, especially where improved wet grip properties are required. The aromatic oil and high percentage of styrene result in a good miscibility and processing behavior during extrusion and calendaring. Other applications include molded and extruded mechanical goods with low resilience. It is supplied in bales weighing 25 kg. Bales are wrapped in 50 micron PE film. At mixing temperatures above 115°C, the rubber can be processed with the packaging film.

Information provided by Dow

Available Properties
  • Viscosity Measurement
  • Mooney Viscosity
  • Ash
  • Collected Volatile Condensable Material
  • Storage Temperature
  • Acid Value
  • Styrene Content
  • Tensile Strength, Ultimate
  • Tensile Strength, Yield
  • Elongation at Break
  • Shelf Life
  • Accelerator (TBBS) wt%
  • Carbon Black wt%
  • Stearic Acid wt%
  • Sulfur content, %
  • Total Extractables %
  • Zinc Oxide wt%
   
Property Data

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