Table 3 Thickness of the bulk films, uncoated and coated-PLA samples, and mass transport parameters obtained by TransPoly model for the 30–80% RH step.
Samples | Film thickness (µm) | CS/NC layer thickness (nm) | D × 10−12 (m2/s) | α (%) | τ (h) |
|---|---|---|---|---|---|
CNC (bulk) | 120 ± 11 | – | 1.5 | 1.6 | 20 |
CNF (bulk) | 95 ± 13 | – | 0.5 | 2.0 | 22 |
CNF TEMPO (bulk) | 85 ± 6 | – | 0.4 | 0.8 | 4.1 |
PLA (1)(bulk) | 50 ± 2 | – | 2.3 | 5.0 | 6.9 |
PLA (2) (bulk) | 50 ± 2 | – | 1.8 | 6.1 | 14 |
PLA(CS) | 50 ± 2 | 40 | 2.5 | 3.5 | 4.1 |
PLA(CS)(CNC)2 | 50 ± 2 | 120 | 2.2 | 5.5 | 2.7 |
PLA(CS)(CNC)10 | 50 ± 2 | 440 | 3.1 | 5.5 | 7.1 |
PLA(CS)(CNF)2 | 50 ± 2 | 44 | 2.0 | 4.0 | 1.8 |
PLA(CS)(CNF)10 | 50 ± 2 | 60 | 1.8 | 6.2 | 24 |
PLA(CS)(CNF TEMPO)2(1) | 50 ± 2 | 48 | 2.4 | 6.1 | 8.5 |
PLA(CS)(CNF TEMPO)2(2) | 50 ± 2 | 48 | 1.8 | 7.5 | 24 |
PLA(CS)(CNF TEMPO)10(1) | 50 ± 2 | 80 | 1.9 | 5.2 | 8.6 |
PLA(CS)(CNF TEMPO)10(2) | 50 ± 2 | 80 | 1.9 | 3.2 | 15 |
