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Dow SE SLR-4400 Solution polymerized Styrene Butadiene Rubber (S-SBR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Dow Chemical
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Dow SE SLR-4400 Solution polymerized Styrene Butadiene Rubber (S-SBR).pdf
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Material Notes:
SE SLR-4400 is manufactured by anionic solution polymerization using lithium initiator. It is a product with medium styrene and high vinyl content. The product is partially Sn-coupled and non-staining stabilized. SE SLR-4400 is widely used in the manufacture of high-quality technical rubber articles but also can be used in the tire industry. It is supplied in bales weighing 25 kg. Bales are wrapped in 50 micron PE film. At mixing temperatures above 110°C, the rubber can be processed with the packaging film. Information provided by Dow
Physical Properties Metric English Comments
Viscosity Measurement 1.8

@Temperature 160 °C
1.8

@Temperature 320 °F
[dNm]; ML, (0.5 RAD); ASTM D5289
6.0

@Temperature 160 °C
6.0

@Temperature 320 °F
[min]; ts1, (0.5 RAD); ASTM D5289
8.0

@Temperature 160 °C
8.0

@Temperature 320 °F
[min]; T50, (0.5 RAD); ASTM D5289
13

@Temperature 160 °C
13

@Temperature 320 °F
[min]; T90, (0.5 RAD); ASTM D5289
20.8

@Temperature 160 °C
20.8

@Temperature 320 °F
[dNm]; MH, (0.5 RAD); ASTM D5289
Mooney Viscosity 55

@Temperature 100 °C
55

@Temperature 212 °F
[MU]; ML 1+4, massed sample; ASTM D1646
Vinyl Acetate Content 35 %
35 %
FTIR, internal method
Collected Volatile Condensable Material 0.15 %
0.15 %
ASTM D5668
Storage Temperature <= 13.0 °C
<= 55.4 °F
Mechanical Properties Metric English Comments
Hardness, Shore A 64

@Thickness 12.5 mm
64

@Thickness 0.492 in
(25 min / 160°C); ASTM D2240
Tensile Strength, Ultimate 22.0 MPa
3190 psi
Die C (35 min / 145°C); ASTM D412
Tensile Strength, Yield 13.0 MPa

@Strain 300 %
1890 psi

@Strain 300 %
ASTM D412
Elongation at Break 430 %
430 %
ASTM D412
Rebound 53 %

@Thickness 12.5 mm
53 %

@Thickness 0.492 in
Schob pendulum, (25 min / 160°C); ISO 4662
Thermal Properties Metric English Comments
Vicat Softening Point 92.2 °C
198 °F
Glass Transition Temp, Tg -47.2 °C
-53.0 °F
HR 10 K/min; half height; DSC
Chemical Properties Metric English Comments
Styrene Content 25 %
25 %
FTIR, internal method
Processing Properties Metric English Comments
Shelf Life >= 12.0 Month
>= 12.0 Month
Descriptive Properties Value Comments
Accelerator (CBS) wt% 1
Aromatic Oil wt% 5
Carbon Black wt% 50
; IRB 7
Stearic Acid wt% 1.5
Sulfur content, % 1.75
Zinc Oxide wt% 3
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