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LG Chemical BR 1280 Polybutadiene Polymer

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer LG Chemical
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
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Material Notes:
BR 1280 is high cis- 1,4 polybutadiene polymer produced by a solution polymerization process polymerization process employing a stereospecific catalyst to control microstructure, molecular weight and molecular weight distribution. This grade is stabilized with a non- staining, non- discoloring antioxidant allowing for its physical property persistence during storage and application. BR 1280, having very high cis content, have a good abrasion resistance, flex cracking resilience and low temperature properties. Especially, BR 1280 has very good storage stability because BR 1280 has very low cold flow property than BR 1280. And it is excellent for dispersion of filler, shorter mixing cycle, resistance,improved milling and extrusion, lower power requirements for processing.Application: BR 1280 is used in tire tread, carcass compounds, shoe sole, V- belts, conveyor belt coverings,hose and tube covers, solid golf balls and various industrial products.CAS No: 9003-17-2Information provided by LG Chemical
Physical Properties Metric English Comments
Specific Gravity 0.910 g/cc
0.910 g/cc
Volatiles 0.30 %
0.30 %
Mooney Viscosity 45

@Temperature 100 °C
45

@Temperature 212 °F
ML 1+4
Ash 0.050 %
0.050 %
Mechanical Properties Metric English Comments
Tensile Strength at Break 16.7 MPa

@Temperature 145 °C,
Time 2100 sec
2420 psi

@Temperature 293 °F,
Time 0.583 hour
cured; ASTM D412
Elongation at Break 450 %

@Temperature 145 °C,
Time 2100 sec
450 %

@Temperature 293 °F,
Time 0.583 hour
cured; ASTM D412
300% Modulus 0.00981 GPa

@Temperature 145 °C,
Time 2100 sec
1.42 ksi

@Temperature 293 °F,
Time 0.583 hour
cured; ASTM D412
Descriptive Properties Value Comments
cis contents 0.96
Color Light Yellow
Components BR1280
100, ASTM D3189
HAF (IRB#7)
60, ASTM D3189
Naphthenic Oil
15, ASTM D3189
Stearic Acid
2, ASTM D3189
Sulfur
1.5, ASTM D3189
TBBS
0.9, ASTM D3189
ZnO
3, ASTM D3189
Extractables 0.011
Rheometer 11.6 min
t'90, 160°C, 1° Arc, ASTM D5289
20.5 lb-in
MH, 160°C, 1° Arc, ASTM D5289
3.0 min
ts1, 160°C, 1° Arc, ASTM D5289
3.6 lb-in
ML, 160°C, 1° Arc, ASTM D5289
7.9 min
t'50, 160°C, 1° Arc, ASTM D5289
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