Table 5. Glass Transition Temperature (Tg), Cold Crystallization Temperature (Tcc), Melt Temperature (Tm), and Crystallinity (Xc) of Neat PLA, PLA_BL20, and PLA_BL20-g-5GMA, Obtained from the DSC 2nd Heating Cycle after Cooling with Different Rates.
composite | cooling rate (°C/min) | Tg (°C) | Tcc (°C) | ΔHcc (J/g) | Tm (°C) | ΔHm (J/g) | Xc (%) |
---|---|---|---|---|---|---|---|
neat PLA | 5 | 58.27 | 104.00 | 22.53 | 144.29 | 24.06 | 1.64 |
2.5 | 59.07 | 104.65 | 21.14 | 144.43 | 24.07 | 3.13 | |
1 | 60.19 | 100.42 | 2.67 | 142.33 | 25.98 | 23.97 | |
PLA_BL20 | 5 | 54.93 | 111.68 | 5.43 | 144.48 | 5.89 | 0.49 |
2.5 | 56.04 | 112.00 | 3.89 | 144.71 | 4.26 | 0.39 | |
1 | 57.82 | 112.49 | 1.28 | 145.12 | 1.79 | 0.54 | |
PLA_BL20-g-5GMA | 5 | 54.18 | 108.54 | 13.16 | 142.59 | 13.88 | 0.77 |
2.5 | 55.95 | 108.60 | 13.78 | 143.17 | 14.80 | 1.10 | |
1 | 57.43 | 112.81 | 5.04 | 144.58 | 6.15 | 1.19 |