Table 1. Thermal Properties of PLA and PLA/ILs in the 1st and 2nd Heating Cycles.
samples | 1st heating | 2nd heating | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Tg | Tcc | Tm | ΔHm | Xc (%) | Tg | Tcc | Tm | ΔHm | Xc (%) | |
PLA | 59.2 ± 0.2 | 94.3 ± 0.5 | 150.8 ± 0.3 | 26.2 ± 0.5 | 27.9 ± 0.5 | 59.5 ± 0.2 | 123.3 ± 0.3 | 148.7 ± 0.4 | 19.5 ± 0.6 | 20.8 ± 0.3 |
PLA/3di | 60.0 ± 0.2 | 87.7 ± 0.4 | 149.0 ± 0.5 | 29.1 ± 0.4 | 32.0 ± 0.4 | 58.4 ± 0.3 | 120.0 ± 0.4 | 148.1 ± 0.2 | 30.1 ± 0.4 | 33.1 ± 0.4 |
PLA/5di | 56.0 ± 0.3 | 87.5 ± 0.4 | 150.3 ± 0.4 | 32.7 ± 0.3 | 36.7 ± 0.3 | 56.9 ± 0.3 | 118.7 ± 0.5 | 147.4 ± 0.3 | 29.2 ± 0.5 | 32.8 ± 0.5 |
PLA/10di | 54.6 ± 0.4 | 85.8 ± 0.5 | 150.2 ± 0.2 | 31.2 ± 0.2 | 37.0 ± 0.2 | 54.2 ± 0.5 | 123.5 ± 0.6 | 145.9 ± 0.7 | 21.0 ± 0.7 | 24.9 ± 0.7 |
PLA/3tri | 59.4 ± 0.3 | 86.7 ± 0.4 | 150.1 ± 0.3 | 32.1 ± 0.6 | 35.3 ± 0.6 | 57.4 ± 0.2 | 119.1 ± 0.7 | 147.6 ± 0.4 | 27.1 ± 0.3 | 29.8 ± 0.3 |
PLA/5tri | 57.6 ± 0.3 | 87.5 ± 0.2 | 150.2 ± 0.2 | 31.0 ± 0.3 | 34.8 ± 0.3 | 58.0 ± 0.2 | 120.8 ± 0.5 | 147.3 ± 0.3 | 21.1 ± 0.6 | 23.7 ± 0.6 |
PLA/10tri | 55.0 ± 0.5 | 101.4 ± 0.5 | 149.9 ± 0.4 | 31.5 ± 0.2 | 37.3 ± 0.2 | 54.1 ± 0.4 | 118.8 ± 0.3 | 146.7 ± 0.4 | 25.7 ± 0.4 | 30.5 ± 0.4 |
PLA/3tetra | 57.7 ± 0.3 | 88.1 ± 0.6 | 150.9 ± 0.5 | 34.2 ± 0.4 | 37.6 ± 0.4 | 58.1 ± 0.3 | 121.6 ± 0.4 | 148.3 ± 0.2 | 21.7 ± 0.5 | 23.9 ± 0.5 |
PLA/5tetra | 57.4 ± 0.1 | 87.9 ± 0.5 | 150.1 ± 0.5 | 31.1 ± 0.5 | 34.9 ± 0.5 | 57.5 ± 0.2 | 119.4 ± 0.4 | 146.8 ± 0.5 | 24.6 ± 0.3 | 27.6 ± 0.3 |
PLA/10tetra | 55.1 ± 0.4 | 90.8 ± 0.7 | 150.1 ± 0.3 | 29.7 ± 0.3 | 35.2 ± 0.3 | 55.1 ± 0.5 | 122.3 ± 0.2 | 147.8 ± 0.2 | 19.5 ± 0.2 | 23.1 ± 0.2 |