Formulations for the rubber compounding, in parts by weight per hundred parts (phr).
| Ingredient | Content (phr) | Content (phr) | Content (phr) |
|---|---|---|---|
| Pristine SBR | 100.00 | ||
| SBR-g-D4 rubber | 100.00 | ||
| In situ reinforced SBR-g-D4 rubber | 100.00 | ||
| Silica | 0 | Varied from 0, 4.80, 7.90, 9.32, 13.70, 18.05 | 0 |
| ZnO | 3.00 | 3.00 | 3.00 |
| SA | 1.00 | 1.00 | 1.00 |
| CBS | 1.00 | 1.00 | 1.00 |
| DPG | 1.50 | 1.50 | 1.50 |
| S | 2.00 | 2.00 | 2.00 |