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KKPC KOSYN KBR 01 Polybutadiene Rubber (High cis BR)

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Korea Kumho Petrochemical Co., Ltd.
Trade Name KOSYN
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF KKPC KOSYN KBR 01 Polybutadiene Rubber (High cis BR).pdf
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Material Notes:
Polybutadiene Rubber (High cis BR)Characteristics: Polybutadiene Rubber (BR), which has three kinds of bond structure of cis-1,4, trans-1,4, vinyl, is simple polymer made from 1,3-butadiene by solution polymerization, and it is classified to High cis BR and Low cis BR according to the cis-1,4 content. High cis BR containing over 94% cis-1,4 is superior in abrasion resistance, elasticity, age resistance and water resistance. As the secondary transition temperature is very low (about -100°C), it is most widely utilized together with SBR.Applications: Tires, shoes, belting, rubber hose, industrial rubber products.Additional Notes: Stabilizer: Non-Pollutingcis-1,4 Contents: 95%Volatile Matter: 0.2%Ash Content: 0.2%This product is so sensitive to sunlight and humidity that it can be tarnished and caused deterioration of quality if exposed. It is recommended to store it in cool and shady area lest it should be exposed to direct sunlight. Do not expose to incompatible materials or contaminants.Data provided by Korea Kumho Petrochemical Co., Ltd.
Physical Properties Metric English Comments
Density 0.910 g/cc
0.0329 lb/in³
Not Compounded
Mooney Viscosity 45

@Temperature 100 °C
45

@Temperature 212 °F
Raw; ML1+4
55

@Temperature 100 °C
55

@Temperature 212 °F
Compounded; ML1+4; BR 100, ZnO 3, Stearic Acid 2, HAF Black (IRB#6) 60, Aromatic Oil 15, Accelerator TBBS 0.9, Sulfur 1.5 Total: 182.4
Mechanical Properties Metric English Comments
Hardness, Shore A 55
55
Cured; JIS-A
Tensile Strength, Ultimate 19.4 MPa
2820 psi
Cured
Elongation at Break 620 %
620 %
Cured
300% Modulus 0.00755 GPa
1.10 ksi
Cured
Rebound 54 %
54 %
ASTM
Flex Crack Resistance 5000
5000
De Mettia Flexometer Cut Growth: 2mm --> 15mm, Flexes
Tear Strength 36.3 kN/m
207 pli
B-type
Abrasion 0.0030
0.0030
Akron type Tester (cc/1000rev)
Compression Set 4.0 %
4.0 %
Permanent Set
15 %

@Temperature 70.0 °C
15 %

@Temperature 158 °F
70°C / 22 hrs, 25%, def
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