Table 3.
Thermal transitions, melting enthalpy and degree of crystallinity of PLA, and all composite films obtained by solution casting.
| Material | Tg (°C) | ΔCp (J/g·°C) | Tm1 (°C) | Tm2 (°C) | Tcc (°C) | ΔHcc (J/g) | ΔHf (J/g) | Xc (%) |
|---|---|---|---|---|---|---|---|---|
| PLA | 58.4 | 0.43 | 147.4 | 155.1 | 107.7 | 26.34 | 27.53 | 29.6 |
| PLA-10 Th | 56.6 | 0.30 | 146.8 | 154.4 | 109.1 | 23.93 | 25.16 | 29.7 |
| PLA-10 Ca | 55.1 | 0.43 | 148.1 | 154.5 | 111.4 | 24.34 | 25.28 | 30.0 |
| PLA-10 Lim | 54.8 | 0.33 | 147.5 | 153.7 | 111.3 | 23.74 | 24.94 | 29.5 |
| PLA-10 Ci | 50.0 | 140.4 | 150.1 | 103.0 | 23.72 | 24.68 | 29.2 | |
| PLA-ThCaLim | 56.2 | 0.24 | 146.5 | 154.2 | 107.5 | |||
| PLA-ThCaCi | 52.3 | 0.34 | 146.7 | 152.0 | 104.9 | |||
| PLA-ThLimCi | 49.5 | 0.58 | 147.5 | -- | 111.3 | |||
| PLA-CaLimCi | 54.2 | 0.54 | 147.0 | 152.8 | 109.0 | |||
| PLA-ThCaLimCi | 49.4 | 0.34 | 145.6 | -- | 107.4 |