Styron Buna® cis 132 Schkopau High-cis Polybutadiene Rubber (PBR)

Composition: Buna® cis 132 – Schkopau is a stereospecific polybutadiene with a high 1,4-cis content. It is manufactured by a solution process using an organo-metallic nickel catalyst which produces a consistent light coloured polymer with low ash content. Buna® cis 132 – Schkopau contains a non-staining stabiliser.Application: Buna® cis 132 – Schkopau is widely used in the tyre industry but also in the production of conveyor belts and other rubber articles which are exposed to high cyclical stress. It offers good abrasion resistance, high resilience, low hysteresis, and a low glass transition temperature. Buna® cis 132 – Schkopau offers excellent processability and may be blended with natural rubber and styrene butadiene (SBR), isoprene (IR), nitrile (NBR), or polychloroprene (CR) synthetic rubbers. Due to its non-staining stabiliser Buna® cis 132 – Schkopau is suitable for light-coloured rubber articles also when compounded with selected thermoplastics.Test Formulation (ASTM D 3189 based on IRB7 black):Polymer - 100.0 parts by massIRB7 industry reference oil furnace carbon black - 60.0 parts by massPlasticiser - 15.0 parts by massZinc oxide - 3.0 parts by massSulphur - 1.5 parts by massStearic acid - 2.0 parts by massN-tert-butyl-2-benzothiazole sulphenamide (TBBS) - 0.9 parts by massInformation provided by Styron