Table 3.
Thermal properties of PLA and PLA formulations plasticized with ISE and ATBC at different contents.
| Formulations | Tg (°C) | Tcc (°C) | ΔHcc (J/g) | Tm1 (°C) | Tm2 (°C) | ΔHm (J/g) | Xc (%) | Tg (°C) |
|---|---|---|---|---|---|---|---|---|
| 1st Heating Scan | Cooling | |||||||
| PLA | 58.1 ± 0.4 | 120.7 ± 1.5 | 19.7 ± 2.2 | - | 150.9 ± 0.2 | 35.4 ± 0.5 | 16.7 ± 2.8 | 52.8 ± 2.0 |
| PLA85–ATBC15 | 30.8 ± 0.7 | 89.4 ± 0.1 | 30.0 ± 0.1 | 134.2 ± 0.2 | 146.5 ± 0.1 | 32.9 ± 0.1 | 3.1 ± 0.2 | 25.5 ± 2.3 |
| PLA80–ATBC20 | 31.8 ± 0.2 | 90.1 ± 0.6 | 28.5 ± 1.2 | 134.5 ± 0.3 | 146.4 ± 0.1 | 30.1 ± 0.1 | 2.1 ± 1.7 | 24.1 ± 0.5 |
| PLA70–ATBC30 | 13.4 ± 3.0 | 61.6 ± 1.0 | 12.8 ± 1.0 | - | 142.3 ± 0.2 | 27.3 ± 0.1 | 21.9 ± 1.6 | 6.0 ± 0.7 |
| PLA85–ISE15 | 34.8 ± 5.0 | 85.9 ± 3.8 | 25.6 ± 1.8 | 135.0 ± 0.5 | 147.7 ± 0.1 | 35.6 ± 0.6 | 10.7 ± 3.0 | 23.8 ± 1.5 |
| PLA80–ISE20 | 29.4 ± 1.2 | 67.5 ± 0.6 | 22.8 ± 3.4 | - | 145.3 ± 0.2 | 38.6 ± 3.0 | 21.0 ± 0.5 | 23.4 ± 0.7 |
| PLA70–ISE30 | 28.6 ± 2.7 | 66.9 ± 1.5 | 21.1 ± 0.3 | - | 143.0 ± 0.8 | 39.1 ± 0.7 | 27.3 ± 1.5 | 21.0 ± 1.1 |
| 2nd Heating Scan | ||||||||
| PLA | 61.5 ± 0.2 | 129.6 ± 0.7 | 12.8 ± 1.6 | - | 152.0 ± 0.7 | 15.1 ± 3.0 | 2.5 ± 1.5 | |
| PLA85–ATBC15 | 31.7 ± 0.6 | 96.1 ± 0.1 | 27.2 ± 3.0 | 135.7 ± 0.1 | 147.0 ± 0.4 | 32.5 ± 1.6 | 5.7 ± 1.7 | |
| PLA80–ATBC20 | 30.5 ± 0.9 | 95.8 ± 0.3 | 24.7 ± 4.4 | 135.9 ± 0.6 | 146.7 ± 0.6 | 27.4 ± 3.9 | 3.6 ± 0.7 | |
| PLA70–ATBC30 | 14.3 ± 2.5 | 78.9 ± 0.1 | 20.5 ± 1.2 | 127.0 ± 0.2 | 142.6 ± 0.1 | 26.5 ± 0.5 | 9.0 ± 2.6 | |
| PLA85–ISE15 | 32.5 ± 0.1 | 93.7 ± 0.3 | 27.1 ± 0.8 | 136.1 ± 0.1 | 147.7 ± 0.1 | 33.0 ± 1.2 | 6.2 ± 2.5 | |
| PLA80–ISE20 | 30.2 ± 0.5 | 91.6 ± 0.1 | 26.9 ± 1.1 | 134.8 ± 0.2 | 146.1 ± 0.1 | 30.5 ± 1.1 | 4.8 ± 3.0 | |
| PLA70–ISE30 | 26.5 ± 0.6 | 84.4 ± 0.2 | 21.0 ± 0.9 | 133.5 ± 0.3 | 143.9 ± 0.2 | 27.8 ± 0.8 | 10.5 ± 0.1 | |