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Styron Buna® SB 1502 Schkopau Cold Polymerized Emulsion Styrene Butadiene Rubber (E-SBR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Styrene Butadiene Rubber
Manufacturer Styron
Trade Name Buna®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Styron Buna® SB 1502 Schkopau Cold Polymerized Emulsion Styrene Butadiene Rubber (E-SBR).pdf
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Material Notes:
Composition: Buna® SB 1502 – Schkopau is manufactured by cold polymerization using mixed rosin acid /fatty acid soaps. A non-discoloring stabilizer is added during the production process.Application: Buna® SB 1502 – Schkopau is a general purpose rubber. It can be processed in all sectors of the tyre and rubber industry. Buna® SB 1502 – Schkopau is mainly used for the production of light-colored rubber articles which can also be applied in the food industry (Styron may be consulted regarding applicable regulations).Test Formulation (ASTM D 3189 based on IRB7 black):Polymer - 100.0 parts by massIRB7 industry reference oil furnace carbon black - 50.0 parts by mass Zinc oxide - 3.0 parts by massSulphur - 1.75 parts by massStearic acid - 1.0 parts by massN-tert-butyl-2-benzothiazole sulphenamide (TBBS) - 1.0 parts by massInformation provided by Styron
Physical Properties Metric English Comments
Density 0.930 g/cc
0.0336 lb/in³
Volatiles 0.30 %

@Treatment Temp. 105 °C,
Time 3600 sec
0.30 %

@Treatment Temp. 221 °F,
Time 1.00 hour
5 g in hot air oven; ASTM D5668
Mooney Viscosity 50

@Temperature 100 °C
50

@Temperature 212 °F
[MU] ML 1+4; ASTM D1646
Ash 0.050 %
0.050 %
ASTM D5667
Mechanical Properties Metric English Comments
Tensile Strength at Break 28.4 MPa

@Treatment Temp. 145 °C,
Time 2100 sec
4120 psi

@Treatment Temp. 293 °F,
Time 0.583 hour
Cure; ASTM D412
Elongation at Break 490 %
490 %
ASTM D412
300% Modulus 0.0155 GPa
2.25 ksi
ASTM D412
Chemical Properties Metric English Comments
Styrene Content 23.5 %
23.5 %
Bound; ASTM D5775
Descriptive Properties Value Comments
Composition 0.058
Organic Acid, ASTM D5774
Rheometer 15.8 min
t<sub>c</sub> (90), ASTM D5289
2.6 dNm
ML, ASTM D5289
21.9 dNm
MH, ASTM D5289
5.6 min
t<sub>s</sub>2, test temperature 160°C; ASTM D5289
9.2 min
t<sub>c</sub> (50), ASTM D5289
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