Table 1. Mechanical Properties of NR–SiO2 Compositesa.
| sample | modulus (MPa) | tensile strength (MPa) | elongation at break (%) | toughness (MJ/m3) |
|---|---|---|---|---|
| NR | 4.39 (0. 4) | 7.96 (0. 6) | 580 (9.0) | 8.34 (0.5) |
| NR/25S-T | 15.32 (0.5) | 20.2 (0.4) | 358 (11.5) | 10.14 (0.6) |
| NR/50S-T | 17.55 (0. 6) | 18.5 (0. 4) | 312 (10.3) | 7. 72 (0.7) |
| NR/75S-T | 18.97 (0.7) | 20.4 (0.3) | 315 (10.1) | 8.97 (0.2) |
| NR/50S-0T | 6.91 (0.4) | 14.3 (0.3) | 495 (7.3) | 12.46 (0.8) |
| NR/50S-RT | 16.12 (0.6) | 19.9 (0.4) | 345 (13) | 9.64 (0.2) |
| DNR/50S-T | 16.94 (0.2) | 17.95 (0.3) | 313 (11.5) | 7.94 (0.4) |
a
The standard error is presented in parentheses