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| Sample | Oxygen permeability at 23 °C and 0% RH (cm3 mm m−2 d−1 atm−1) | Water vapor permeability at 38 °C and 100% RH (g mm m−2 d−1) | Total path of diffusing gas (μm) | Tortuosity factor |
|---|---|---|---|---|
| PLA | 737 ± (39) | 1683 ± (69) | 0.63 | 1.00 |
| PLA/talc | 566 ± (9) | 1250 ± (67) | 0.78 | 1.23 |
| PLA/BC | 850 ± (25) | 1958 ± (57) | 0.64 | 1.01 |
| PLA/BC24 h | 838 ± (17) | 1684 ± (27) | 0.66 | 1.04 |
