Nitrile Rubber (NBR 33% ACN vulcanized) vs TPU Elastomer (Thermoplastic PU ester 85A BASF Elastollan)
Property comparison of Nitrile Rubber (NBR 33% ACN vulcanized) and TPU Elastomer (Thermoplastic PU ester 85A BASF Elastollan), both rubber elastomer.
| Property | Nitrile Rubber (NBR 33% ACN vulcanized) | TPU Elastomer (Thermoplastic PU ester 85A BASF Elastollan) | Difference |
|---|---|---|---|
| Tensile strength | 15 MPa | 40 MPa | +167% |
| Elongation | 450 % | 500 % | +11% |
| Poisson ratio | 0.5 | 0.49 | -2% |
| Density | 1,000 kg/m³ | 1,200 kg/m³ | +20% |
| Thermal conductivity | 0.24 W/m·K | 0.23 W/m·K | -4% |
| Specific heat | 1,800 J/kg·K | 1,800 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.00019 1/K | 0.00017 1/K | -11% |
Difference is TPU Elastomer (Thermoplastic PU ester 85A BASF Elastollan) relative to Nitrile Rubber (NBR 33% ACN vulcanized). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM
- standard
- ASTM D1418
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