Table 7.
Properties of the ester foams obtained using the formulation indicated in Table 1, replacing 1% or 5%. virgin polyol with recycled polyol.
| Ester Foam | Ref. | EXP. 2 | EXP. 4 | EXP. 5 | EXP. 2 | EXP. 4 | EXP. 5 |
|---|---|---|---|---|---|---|---|
| Desmophen 2200B (virgin polyol) (%) | 100.0 | 99.0 | 99.0 | 99.0 | 95.0 | 95.0 | 95.0 |
| Recycled polyol (%) | 0.0 | 1.0 | 1.0 | 1.0 | 5.0 | 5.0 | 5.0 |
| Foam Physical Properties | |||||||
| Rise time (s) | 119.0 | 118.0 | 117.0 | 117.0 | 113.0 | 111.0 | 112.0 |
| Foam settling (%) | 1.20 | 2.00 | 1.90 | 1.70 | 7.90 | 6.70 | 9.00 |
| Density (kg/m3) | 25.10 | 24.50 | 24.80 | 24.30 | 25.10 | 25.60 | 25.50 |
| Hardness CFD-40% (kPa) | 4.86 | 4.46 | 4.62 | 4.60 | 3.40 | 3.75 | 3.82 |
| Compression set 22 h 75% 70 °C (%) | 7.90 | 9.70 | 8.72 | 8.66 | 24.78 | 26.37 | 21.02 |
| Initial air flow (L/min) | 33.0 | 25.0 | 27.0 | 27.0 | 14.0 | 11.0 | 9.0 |
| Tensile strength (kPa) | 107.0 | 124.0 | 121.0 | 117.0 | 156.0 | 161.0 | 155.0 |
| Cell structure (fine 1.... coarse 8) | 5.0 | 4.0 | 4.0 | 4.0 | 3.0 | 3.0 | 3.0 |