Table 2. Thermal Properties of CPI Hybrid Films with Various Organoclay Contents.
| FDN
PI |
FDN-OH
PI |
|||||||
|---|---|---|---|---|---|---|---|---|
| Cloisite 30B in PI (wt %) | Tg (°C) | TDi a (°C) | wtR600 b (%) | CTEc (ppm/°C) | Tg (°C) | TDi (°C) | wtR600 (%) | CTE (ppm/°C) |
| 0 (pure PI) | 230 | 501 | 68 | 63 | 287 | 312 | 63 | 65 |
| 0.25 | 236 | 505 | 67 | 61 | 292 | 314 | 64 | 58 |
| 0.50 | 242 | 512 | 70 | 59 | 302 | 315 | 64 | 57 |
| 0.75 | 238 | 509 | 70 | 62 | 309 | 319 | 64 | 52 |
| 1.00 | 234 | 502 | 68 | 64 | 292 | 311 | 62 | 57 |
a
At a 2% initial weight-loss temperature.
b
Weight percent of residue at 600 °C.
c
Coefficient of thermal expansion obtained in the second heating cycle between 20 and 220 °C.