Research Article
Reinforced, Extruded, Isotropic Magnetic Elastomer Composites: Fabrication and Properties
Table 3
Mechanical properties and cross-linking density of magnetorheological composites prepared by different producing methods.
| | Sample | Carbonyl iron powder content [phr] | Carbon black content [phr] | SE100 [MPa] | EB [%] | TS [MPa] | 10−5 [mol/cm3] |
| | Composites prepared using traditional rubber processing |
| | Reference sample | - | - | 2.9±0.1 | 482±5 | 4.9±0.5 | 3.0±0.2 | | 60 | - | 3.2±0.1 | 294±4 | 6.0±0.6 | 2.9±0.3 |
| | Carbon black filled sample | 60 | 5 | 3.4±0.2 | 177±2 | 4.5±0.5 | 3.1±0.1 | | 10 | 4.0±0.1 | 160±7 | 5.0±0.6 | 3.7±0.2 | | 15 | 4.6±0.1 | 140±6 | 5.5±0.5 | 4.0±0.3 | | 20 | 5.6±0.2 | 137±9 | 8.0±0.3 | 5.0±0.2 |
| | Composites prepared using extrusion process |
| | Reference sample | - | - | 2.9±0.2 | 492±11 | 5.2±0.6 | 3.0±0.2 | | 60 | - | 3.5±0.1 | 373±5 | 8.7±0.2 | 6.2±0.1 |
| | Carbon black filled sample | 60 | 5 | 4.3±0.1 | 232±4 | 7.2±0.3 | 6.8±0.2 | | 10 | 4.9±0.1 | 246±9 | 9.5±0.3 | 7.6±0.3 | | 15 | 5.4±0.1 | 227±8 | 10.4±0.3 | 8.7±0.4 | | 20 | 5.9±0.1 | 218±4 | 18.8±0.5 | 9.8±0.2 |
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SE100: stress at 100% elongation;
EB: elongation at break;
TS: tensile strength;
γe: the crosslinking density of the vulcanizates in toluene.
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