Butyl Rubber (IIR vulcanized) vs Natural Rubber (NR vulcanized)
Property comparison of Butyl Rubber (IIR vulcanized) and Natural Rubber (NR vulcanized), both rubber elastomer.
| Property | Butyl Rubber (IIR vulcanized) | Natural Rubber (NR vulcanized) | Difference |
|---|---|---|---|
| Tensile strength | 14 MPa | 25 MPa | +79% |
| Elongation | 500 % | 600 % | +20% |
| Elastic modulus | 1.5 MPa | 2 MPa | +33% |
| Poisson ratio | 0.5 | 0.5 | 0% |
| Density | 1,270 kg/m³ | 1,200 kg/m³ | -6% |
| Thermal conductivity | 0.09 W/m·K | 0.15 W/m·K | +67% |
| Specific heat | 1,900 J/kg·K | 1,950 J/kg·K | +3% |
| Coefficient of thermal expansion | 0.00019 1/K | 0.00022 1/K | +16% |
Difference is Natural Rubber (NR vulcanized) relative to Butyl Rubber (IIR 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
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