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Styron Sprintan® SLR 4630 Solution Styrene Butadiene Rubber (S-SBR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Styrene Butadiene Rubber
Manufacturer Styron
Trade Name Sprintan®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Styron Sprintan® SLR 4630 Solution Styrene Butadiene Rubber (S-SBR).pdf
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Material Notes:
Composition: SPRINTAN® SLR-4630 – Schkopau is manufactured by anionic solution polymerization using an organo-lithium initiator. In relation to solid rubber the grade is extended with 37.5 parts of TDAE oil which complies with the EU Directive 2005/69/EC for use in tyre application. The product has a medium styrene/high vinyl micro structure and a typical glass transition temperature of -29°C. SPRINTAN® SLR-4630 – Schkopau is partially Si-coupled and contains a non-staining stabiliser.Application: SPRINTAN® SLR-4630 – Schkopau provides an excellent balance between good wet traction and low rolling resistance for silica- and/or carbon black- filled tyre tread compounds for summer -, winter -, and all season tyres. The product can also be used in high-quality technical rubber articles. Test Formulation (based on IRB7 black):Polymer – 137.5 parts by massStearic Acid - 1.0 parts by massZinc Oxide - 3.00 parts by massCarbon Black IRB 7 – 68.75 parts by mass Sulphur - 1.75 parts by massAccelerator (CBS) - 1.38 parts by massStearic Acid – 1.0 parts by massInformation provided by Styron
Physical Properties Metric English Comments
Density 0.940 g/cc
0.0340 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 55

@Temperature 100 °C
55

@Temperature 212 °F
[MU] ML 1+4; ASTM D1646
Ash 0.30 %
0.30 %
ASTM D5667
Mechanical Properties Metric English Comments
Hardness, Shore A 56.7
56.7
ASTM D2240
Tensile Strength at Break 19.0 MPa

@Treatment Temp. 145 °C,
Time 2100 sec
2760 psi

@Treatment Temp. 293 °F,
Time 0.583 hour
Cure; ASTM D412
Elongation at Break 510 %
510 %
ASTM D412
300% Modulus 0.0104 GPa
1.51 ksi
ASTM D412
Rebound 18 %
18 %
Resilience; ISO 4662
Thermal Properties Metric English Comments
Glass Transition Temp, Tg -28.9 °C
-20.0 °F
HR 10 K/min, half height
Chemical Properties Metric English Comments
Styrene Content 25 %
25 %
Bound; ASTM D5775
Descriptive Properties Value Comments
Composition 0.274
Total Extractables; ASTM D5774
0.63
Vinyl content
Rheometer 11.2 min
t<sub>c</sub> (50), ASTM D5289
15.0 dNm
MH, ASTM D5289
18.4 min
t<sub>c</sub> (90), ASTM D5289
3.1 dNm
ML, ASTM D5289
7.8 min
t<sub>s</sub>2, test temperature 160°C; ASTM D5289
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