Table 2.
DMA parameters for epoxy composites with 20 and 50 vol% of both non-functionalized and GO-functionalized curaua fibers. Neat epoxy DMA parameter obtained from [24].
| DMA Parameter | EM | 20CF/EM | 20GOCF/EM | 50CF/EM | 50GOCF/EM |
|---|---|---|---|---|---|
| E′ at RT (GPa) | 3.86 | 7.05 | 7.08 | 11.04 | 13.44 |
| End of Glassy condition (°C) | 59 | 65 | 61 | 68 | 64 |
| Onset of Rubbery condition (°C) | 84 | 96 | 95 | 99 | 96 |
| E″ at RT (GPa) | 0.09 | 0.17 | 0.22 | 0.45 | 0.67 |
| Maximum Internal friction (GPa) | 0.27 | 0.50 | 0.85 | 1.19 | 1.30 |
| Begin glass transition Tg (°C) | 59 | 99 | 82 | 82 | 77 |
| Maximum Damping (Dimensionless) | 0.51 | 0.19 | 0.22 | 0.31 | 0.20 |
| Dynamic Tg | 121 | 101 | 102 | 95 | 100 |