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Sample codes and compositions of NBR/FSp and NBR/FSp/CA composites.
| Materials (phr *) | Unfilled NBR | NBR-5FSp | NBR-10FSp | NBR-10FSp-CA |
|---|---|---|---|---|
| NBR | 100 | 100 | 100 | 100 |
| SA | 2 | 2 | 2 | 2 |
| ZnO | 5 | 5 | 5 | 5 |
| MBTS | 1.5 | 1.5 | 1.5 | 1.5 |
| CBS | 0.5 | 0.5 | 0.5 | 0.5 |
| S | 1.5 | 1.5 | 1.5 | 1.5 |
| FSp | - | 5 | 10 | 10 |
| TESPT | - | - | - | 2 |
* phr = part per hundred of rubber.
