Table 2. Tensile Properties for the Cast and Vulcanized NR at 145 °C for 1 ha.
| sample | strain (%) | stress (MPa) | |
|---|---|---|---|
| IM | moduli | 100 | 1.23 ± 0.03 |
| THF | 1.22 ± 0.02 | ||
| toluene | 1.30 ± 0.03 | ||
| IM | 200 | 2.10 ± 0.05 | |
| THF | 1.95 ± 0.08 | ||
| toluene | 2.43 ± 0.03 | ||
| IM | 300 | 3.10 ± 0.20 | |
| THF | 2.88 ± 0.09 | ||
| toluene | 3.95 ± 0.07 | ||
| IM | break | 741 ± 30 | 25.0 ± 3.0 |
| THF | 709 ± 20 | 19.0 ± 3.0 | |
| toluene | 578 ± 19 | 15.0 ± 3.0 |
a
A reference sample compounded in an IM and vulcanized under the same conditions as the cast rubber is shown (IM). Moduli values are representing stress values in MPa required to strain the samples to different elongations, in accordance w. ISO standard 37.