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 31 Polybutadiene Rubber (High cis BR).pdf |
Price | EMAIL US sales@lookpolymers.com |
Physical Properties | Metric | English | Comments |
---|---|---|---|
Density | 0.930 g/cc | 0.0336 lb/in³ | Not Compounded |
Mooney Viscosity | 35 @Temperature 100 °C |
35 @Temperature 212 °F |
Raw; ML1+4 |
71 @Temperature 100 °C |
71 @Temperature 212 °F |
Compounded; ML1+4; KOSYN KBR31 137.5, ZnO 3, Stearic Acid 2, HAF Black (IRB#6) 82.5, Accelerator TBBS 1.24, Sulfur 1.5 Total: 227.7 |
Mechanical Properties | Metric | English | Comments |
---|---|---|---|
Hardness, Shore A | 57 | 57 | Cured; JIS-A |
Tensile Strength, Ultimate | 18.8 MPa | 2730 psi | Cured |
Elongation at Break | 640 % | 640 % | Cured |
300% Modulus | 0.00804 GPa | 1.17 ksi | Cured |
Rebound | 47 % | 47 % | ASTM |
Flex Crack Resistance | 6000 | 6000 | De Mettia Flexometer Cut Growth: 2mm --> 15mm, Flexes |
Tear Strength | 69.6 kN/m | 398 pli | B-type |
Abrasion | 0.0040 | 0.0040 | Akron type Tester (cc/1000rev) |
Compression Set | 4.0 % | 4.0 % | Permanent Set |
13 % @Temperature 70.0 °C |
13 % @Temperature 158 °F |
70°C / 22 hrs, 25%, def |