Table 4.
Value comparison of reference foam, 1, 2 and 5 wt.% [65].
| Reference Foam | 1 wt.% | 2 wt.% | 5 wt.% | |
|---|---|---|---|---|
| Mechanical strength | ||||
| Compressive strength (Measured parallel) (Measured perpendicular) |
+~5% +~7% |
+~10% +~9% |
−~11% −~18% |
|
| Flexural strength | +~3% | +~6% | −~6% | |
| Impact strength | +~2% | +~4% | −~6% | |
| Flammability | ||||
| Tmax (°C) at stages of thermal decomposition: 1st 2nd 3rd |
205 °C 313 °C 587 °C |
221 °C 315 °C 587 °C |
219 °C 317 °C 589 °C |
217 °C 313 °C 591 °C |
| Char residue (wt.%) at 600 °C | 27.6 | 30.3 | 31.0 | 31.9 |