Table 1.
Formula of the CB-filled NR compounds.
| Component | Composition (phr) |
|---|---|
| NR | 100 |
| Sulfur | 2.5 |
| Steric acid | 3 |
| c-ZnO | 5 |
| CB (N115, N330, N550, N660) | 50 |
| MBTS | 0.6 |
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