Table 3 The LHTES properties of FA/CNTs-g-FA and FA/CNTs composites after 2000 thermal cycles.
Material | Melting temperature (°C) | Change (°C) | Solidification temperature (°C) | Change (°C) | Melting enthalpy (J g−1) | Reduction (%) | Solidification enthalpy (J g−1) | Reduction (%) |
|---|---|---|---|---|---|---|---|---|
CA/CNTs-g-CA1 | 28.27 ± 0.13 | − 0.58 | 27.64 ± 0.12 | − 0.43 | 151.21 ± 1.53 | 13.2 | − 151.12 ± 1.53 | 12.9 |
CA/CNTs-g-CA2 | 28.60 ± 0.10 | − 0.83 | 28.80 ± 0.12 | 0.23 | 154.13 ± 1.57 | 13.9 | − 155.34 ± 1.56 | 13.1 |
CA/CNTs-g-CA3 | 28.40 ± 0.10 | − 0.44 | 28.16 ± 0.10 | 0.21 | 157.45 ± 1.53 | 14.2 | − 158.56 ± 1.66 | 12.1 |
PA/CNTs-g-PA1 | 59.82 ± 0.11 | 0.40 | 58.99 ± 0.11 | 0.02 | 192.67 ± 1.94 | 10.1 | − 199.50 ± 2.13 | 6.5 |
PA/CNTs-g-PA2 | 60.01 ± 0.11 | 0.01 | 59.43 ± 0.10 | − 0.14 | 193.54 ± 1.96 | 13.7 | − 192.33 ± 1.97 | 13.6 |
PA/CNTs-g-PA3 | 59.39 ± 0.11 | − 0.22 | 58.81 ± 0.13 | 0.36 | 201.34 ± 1.99 | 12.5 | − 199.54 ± 2.13 | 12.8 |
SA/CNTs-g-SA1 | 62.60 ± 0.10 | − 1.22 | 63.88 ± 0.11 | − 1.20 | 204.34 ± 2.03 | 13.2 | − 203.32 ± 2.08 | 12.8 |
SA/CNTs-g-SA2 | 64.61 ± 0.12 | − 0.12 | 65.21 ± 0.10 | − 0.71 | 217.27 ± 2.18 | 10.7 | − 215.04 ± 2.23 | 11.3 |
SA/CNTs-g-SA3 | 64.60 ± 0.11 | − 0.30 | 64.20 ± 0.11 | − 0.92 | 221.19 ± 2.31 | 13.8 | − 219.67 ± 2.23 | 11.4 |
CNTs/CA | 27.40 ± 0.12 | − 0.67 | 27.47 ± 0.10 | 0.93 | 151.33 ± 1.53 | 11.7 | − 153.01 ± 1.57 | 10.6 |
CNTs/PA | 59.59 ± 0.10 | − 0.11 | 58.88 ± 0.12 | − 0.22 | 191.45 ± 1.87 | 9.1 | − 193.32 ± 1.98 | 7.7 |
CNTs/SA | 65.80 ± 0.11 | − 0.70 | 66.00 ± 0.10 | − 0.90 | 204.67 ± 2.03 | 12.5 | − 201.54 ± 2.18 | 13.6 |
