TABLE 2.
Overall oxygen transfer coefficients and contact angle of various films.
| Film ID | Film type | Air-Air permeation KAA (×10–3 m s–1) | Water-Air permeation KWA (×10–5 m s–1) | Water-Water permeation KWW (×10–5 m s–1) | Contact angle (°) |
| MP1-1 | Microporous; PE | 2.00 ± 0.04 | 1.80 ± 0.13 | 1.26 ± 0.01 | 114 |
| MP1-2 | Microporous; PE | 1.95 ± 0.04 | 1.90 ± 0.29 | 1.35 ± 0.04 | 122 |
| MP1-3 | Microporous; PE | 1.90 ± 0.10 | 1.99 ± 0.06 | 1.39 ± 0.09 | 118 |
| MP2 | Microporous; PP | 1.97 ± 0.01 | 1.96 ± 0.05 | 0.94 ± 0.06 | 100 |
| MP3-1 | Microporous; PTFE | 2.01 ± 0.03 | 2.10 ± 0.03 | 1.16 ± 0.05 | 134 |
| MP3-2 | Microporous; PTFE | 1.00 ± 0.02 | 2.00 ± 0.13 | 1.28 ± 0.10 | 116 |
| MP3-3 | Microporous; PTFE | 0.21 ± 0.01 | 1.96 ± 0.12 | 1.34 ± 0.13 | 121 |
| NW1-1 | Nonwoven support | 2.02 ± 0.01 | 1.76 ± 0.09 | 1.17 ± 0.04 | 110 [120]* |
| NW1-2 | Nonwoven support | 1.97 ± 0.06 | 1.70 ± 0.03 | 0.60 ± 0.03 | 108 [96]* |
| WP | Woven porous | 1.67 ± 0.11 | 1.24 ± 0.14 | 0.43 ± 0.04 | 96 |
| NP-S | Silicone | 0.00075 ± 0.00008 | 1.16 ± 0.03 | 0.59 ± 0.04 | 94 |
| NP-P | Dense PP film | 0.00016 ± 0.00003 | 0.10 ± 0.04 | 0.05 ± 0.08 | – |
PE: polyethylene; PP: polypropylene; PTFE: polytetrafluoroethylene. *Contact angles for nonwoven fabric support for the NW series was shown in parenthesis.