EVEC?221
| Product Name | Product Type | Elastomer Types | Filler Types | Tyre Track | Product Performance |
|---|---|---|---|---|---|
| EVEC?221 | Ready Compound | STR20#+ESBR | Silica | TBR | Low rolling resistance |
| Category | Test Item | Product index | Test Basis |
|---|---|---|---|
| Master batch | Mooney viscosity, ML（1+4） @125℃ | 55±10 | GB/T 1232.1-2016 |
| Volatile,% | ≤1.5 | GB/T 24131.1-2018 | |
| Final mixing | Tensile strength, MPa | ≥26.0 | GB/T 528-2009 |
| Elongation at break, % | ≥470 | ||
| Stress at 100% elongation, MPa | 2.6±0.5 | ||
| Stress at 300% elongation, MPa | 13.5±1.5 | ||
| Hysteresis loss, tanδ max | ≤0.095 | QTCS-YK.08-01-2020 | |
| Shore hardness, RT, Shore A | 60±3 | GB/T 531.1-2008 | |
| Density, Mg/m3 | 1.149±0.010 | GB/T 533-2008 | |
| Rebound resilience, @23°C,% | ≥55 | GB/T 1681-2009 |