Table 2. DSC Data Obtained from the Second Heating and Cooling for rPET/GO Membranes at Various GO Loadingsa.
| sample | Tm (°C) | Tg (°C) | ΔHm (J/g) | Xc (%) | Tc (°C) | ΔHc (Jg–1) |
|---|---|---|---|---|---|---|
| rPET | 246.2 ± 0.22 | 75.3 ± 0.85 | 41.84 ± 0.18 | 29.89 | 184.8 ± 0.60 | 41.63 ± 0.06 |
| rPET/GO-0.1 | 246.6 ± 0.03 | 75.0 ± 1.02 | 43.47 ± 1.41 | 31.34 | 190.1 ± 1.53 | 43.86 ± 1.67 |
| rPET/GO-0.25 | 246.7 ± 0.12 | 79.85 ± 0.49 | 40.37 ± 0.36 | 28.90 | 189.1 ± 0.06 | 42.40 ± 2.51 |
| rPET/GO-0.5 | 246.4 ± 0.29 | 73.70 ± 0.11 | 43.44 ± 0.47 | 31.18 | 196.1 ± 1.10 | 42.91 ± 0.65 |
| rPET/GO-0.75 | 247.5 ± 0.19 | 73.97 ± 1.64 | 44.53 ± 3.51 | 34.86 | 196.0 ± 1.40 | 46.32 ± 2.78 |
| rPET/GO-1 | 241.8 ± 1.24 | 72.70 ± 0.11 | 45.39 ± 0.47 | 33.87 | 200.9 ± 0.36 | 46.96 ± 1.01 |
| rPET/GO-2 | 240.8 ± 0.13 | 75.2 ± 0.35 | 43.88 ± 4.29 | 32.61 | 200 ± 0.49 | 44.74 ± 3.53 |
a
Tm, melting temperature; Tg, glass transition temperature; Tc, crystallization peak temperature; ΔHm, enthalpy of melting; ΔHc, enthalpy of crystallization; and Xc, degree of crystallinity.