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| foams | mean cell size (μm) | mean cell wall thickness (μm) |
|---|---|---|
| SPF-0 | 440 ± 20.10 | 1.33 ± 0.12 |
| SPF-0.5 | 450 ± 22.59 | 1.75 ± 0.15 |
| SPF-1.0 | 460 ± 19.85 | 1.90 ± 0.08 |
| SPF-1.5 | 480 ± 25.13 | 1.59 ± 0.12 |
| SPF-2.0 | 580 ± 18.95 | 1.35 ± 0.11 |
