Table 2.
Thermomechanical properties of the virgin and reprocessed resins.
| Thermosets | Tan δ, Virgin/Recycled (°C) |
Tan δmax, Virgin/Recycled |
E’glassy plateau, Virgin/Recycled (MPa) |
E’rubbery plateau, Virgin/Recycled (MPa) |
Crosslink Density, Virgin/Recycled (mmol/cm3) |
|---|---|---|---|---|---|
| ECMO/DTBA100 | 85/75 ± 1 | 0.9/1.2 | 400/2290 | 2.78/0.83 | 0.71/0.24 |
| ECMO/DTBA70DTDA30 | 50/50 ± 1 | 0.9/1.0 | 1000/1820 | 2.47/3.32 | 0.25/0.34 |
| ECMO/DTBA50DTDA50 | 39/35 ± 1 | 1.0/1.1 | 1100/2030 | 2.60/3.10 | 0.27/0.38 |
| ECMO/DTBA30DTDA70 | 22/22 ± 1 | 1.0/1.1 | 1500/1970 | 2.56/4.57 | 0.27/0.53 |
| ECMO/DTDA100 | 3/2 ± 1 | 1.2/1.3 | 2280/2000 | 2.82/2.87 | 0.35/0.33 |
| ECMO/DTBA70 4-AFD30 | 82/83 ± 1 | 0.79/1.1 | 400/900 | 1.70/0.87 | 0.48/0.18 |
| ECMO/DTBA50 4-AFD50 | 74/81 ± 1 | 1.3/1.53 | 800/720 | 0.74/0.66 | 0.35/0.28 |
| ECMO/DTBA30 4-AFD70 | 65/70 ± 1 | 1.2/1.07 | 400/1460 | 0.91/1.35 | 0.23/0.25 |
| ECMO/4-AFD100 | 36/41 ± 1 | 0.86/1.1 | 1110/1780 | 0.53/0.51 | 0.21/0.17 |