Table 2.
Results of the analyses of thermosets (ATG, DSC, DMA).
| Thermoset | Curing agent | Resin type | Td5% (°C)a | Tdmax (°C)a | W% chara | Tg(°C)b | Tα (°C)c | E′glassy (Mpa)c | E′elastic (Mpa)c |
|---|---|---|---|---|---|---|---|---|---|
| 1 | DA10 | GDF10EPO | 296 | 356 | 9.9 | 5 | x | x | X |
| 2 | DA10 | GDF14EPO | 299 | 356 | 7.7 | 4 | x | x | x |
| 3 | DA10 | GDF16EPO | 306 | 365 | 8.6 | 3 | x | x | x |
| 4 | DIFFA | GDF10EPO | 282 | 368 | 16.9 | 15 | x | x | x |
| 5 | DIFFA | GDF14EPO | 286 | 378 | 13.6 | 11 | x | x | x |
| 6 | DIFFA | GDF16EPO | 282 | 376 | 15.9 | 16 | x | x | x |
| 7 | IPDA | GDF10EPO | 310 | 369 | 9.0 | 21 | x | x | x |
| 8 | IPDA | GDF14EPO | 298 | 352 | 10.9 | 23 | x | x | x |
| 9 | IPDA | GDF16EPO | 297 | 367 | 10.0 | 18 | x | x | x |
| 10 | IPDA | 87%-GDF14EPO 13%-GTF-EPO | 290 | 378 | 10.1 | 25 | x | x | x |
| 11 | IPDA | 75%-GDF14EPO 25%-GTF-EPO | 287 | 373 | 9.7 | 28 | x | x | x |
| 12 | IPDA | 50%-GDF14EPO 50%-GTF-EPO | 289 | 371 | 14.2 | 45 | 61 | 678 | 3.5 |
| 13 | IPDA | 25%-GDF14EPO 75%-GTF-EPO | 282 | 372 | 15.9 | 54 | 63 | 1,985 | 7.5 |
| 14 | IPDA | 10%-GDF14EPO 90%-GTF-EPO | 266 | 371 | 18.7 | 60 | 71 | 2,523 | 9.7 |
| 15 | IPDA | GFT-EPO | 279 | 372 | 17.5 | 62 | 72 | 1,685 | 8.8 |
Determined by TGA (10°C.min-1, N2 flow).
Determined by DSC on the second heat-cool-heat cycle (10°C.min-1, N2 flow).
Determined by DMA (frequency 1 Hz, amplitude 7 μm, 3°C.min-1). E'glassy at 30°C, E'elastic at 150°C.