Open Access
Table 1
Estimated bandgaps, absorbance for λ = 343 and for λ = 515 nm, glass transition temperatures (Tg), melting temperatures, (Tm), decomposition temperatures (Td) and heat capacity at 25 °C and at Td for PVC, PET and PP.
| Polymer | Bandgap (eV) | Absorbance 343 nm | Absorbance 515 nm | Tg (°C) | Tm (°C) | Td (°C) | Cp at 25 °C (J/kg K) | Cp at Td (J/kg K) |
|---|---|---|---|---|---|---|---|---|
| PVC | 3.95 | 0.216 | 0.090 | 72.29 | – | 225 | 690 | 1568 |
| PET | 3.80 | 0.257 | 0.087 | 75.55 | 245.45 | 349 | 827 | 1979 |
| PP | 4.00 | 0.262 | 0.138 | <0 | 157.96 | 320 | 1181 | 2928 |
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