Table 2.
WVTRs for Polymer Films with 25 nm ALD Al2O3Deposited at 100°C(Vähä-Nissi et al., 2015)
| Oxidizing Precursor | WVTR (23°C, 50% RH) g/m2/day |
|---|---|
| A-CEL | 290 |
| A-CEL + ALD | <1.0 |
| CEL | 100 |
| CEL + ALD | 44 |
| C-CEL | 35 |
| C-CEL + ALD | 2 |
| BOPP | <1.0 |
| BOPP + ALD | <1.0 |
| PHB/HV | 8.3 |
| PHB/HV + ALD | 1.0 |
| O-PA | <1.0 |
| O-PA + ALD | <1.0 |
| O-PET | 3.1 |
| O-PET + ALD | <1.0 |
| PLA | 21 |
| PLA + ALD | <1.0 |
A-CEL, anchored cellulose; CEL, cellulose; BOPP, biaxially oriented polypropylene; O-PA, oriented polyamide and polyethylene; O-PET, oriented polyethylene terephthalate.