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Permeability of tested films to CO2 (~4 h to equilibrium) and O2 (~7 h to equilibrium).
| Sample | Thickness (mm) | CO2 (mL/m2/day) | O2 (mL/m2/day) |
|---|---|---|---|
| PLA | 0.151 | 873 | 1308 |
| PLA/0.25R | 0.120 | 588 | 487 |
| PLA/0.5R | 0.122 | 535 | 273 |
| PLA/0.75R | 0.130 | 412 | 201 |
| PLA/PEG | 0.128 | 524 | 455 |
| PLA/PEG/0.5R | 0.126 | 489 | 278 |
| Food freezing bag | 0.020 | 64,601 | 50,266 |
| Food packaging foil (LDPE/PP) | 0.009 | 128,374 | 35,629 |
