Table 5.
Stress at 50% (σ50) and 100% (σ100) strain, stress at break, and strain at break of NR/HSAG and NR/HSAG-SP vulcanized samples.
| Composite n. | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|
| Filler Type | NR | HSAG | HSAG | HSAG | HSAG-SP | HSAG-SP | HSAG-SP |
| Filler Amount (phr) | 0 | 5 | 15 | 24 | 5 | 15 | 24 |
| σ50 (Mpa) | 0.57 ± 0.02 | 0.6 ± 0.01 | 0.7 ± 0.10 | 1.1 ± 0.06 | 0.5 ± 0.02 | 0.8 ± 0.03 | 1.0 ± 0.02 |
| σ100 (Mpa) | 0.8 ± 0.02 | 0.8 ± 0.01 | 1.2 ± 0.06 | 1.9 ± 0.10 | 0.8 ± 0.01 | 1.3 ± 0.03 | 1.9 ± 0.04 |
| σ300 (Mpa) | 1.93 ± 0.08 | 2.53 ± 0.04 | 6.04 ± 0.31 | 10.5 ± 0.6 | 2.31 ± 0.02 | 6.19 ± 0.22 | 9.91 ± 0.24 |
| σB (Mpa) | 24.5 ± 3.4 | 13.6 ± 1.9 | 21.4 ± 1.1 | 24.3 ± 1.8 | 19.6 ± 0.8 | 23.1 ± 1.6 | 25.4 ± 0.6 |
| εB (%) | 760 ± 37 | 561.2 ± 3 | 516.5 ± 10 | 468.7 ± 35 | 633.7 ± 18 | 536.1 ± 4 | 493 ± 1 |