Table 2.
Glass transition temperature, melting and crystallization characteristics of low-density polyethylene (LDPE) and relative nanocomposites.
| Sample | Heating I | Cooling | Heating II | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Tm (°C) | ΔHm (J/g) | Xc (%) | Tg (°C) | Tc (°C) | ΔHc (J/g) | Tm (°C) | ΔHm (J/g) | Xc (%) | |
| 1 | 116.2 | 163.3 | 55.73 | −114.8 | 92.5 | 155.3 | 115.4 | 163.4 | 55.77 |
| 2 | 115.0 | 161.0 | 56.07 | −113.5 | 94.6 | 157.9 | 113.2 | 154.6 | 53.84 |
| 3 | 115.0 | 155.3 | 55.21 | −114.7 | 95.0 | 154.9 | 112.2 | 154.5 | 54.93 |
| 4 | 115.5 | 154.2 | 55.99 | −113.4 | 94.0 | 149.2 | 112.8 | 163.8 | 55.47 |
Tm—melting temperature; ΔHm—melting enthalpy; Xc—degree of crystallinity; Tc—crystallization peak temperature; ΔHc—crystallization enthalpy; Tg—glass transition temperature.