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| parameter modified | polyol moisture concentration [ppm] | temperature [°C] | mixing profile [rpm] | catalyst [%] |
|---|---|---|---|---|
| polyol moisture | ≈500/800/1000/2000/3000/4500/6000/13 000 | 80 | 100 | 0.035 |
| catalyst concentration | ≈800 | 80 | 100 | 0.035/0.14/0.35/2.1 |
| reaction temperaturea | ≈800 | 80/95/110 | 100 | 0.035 |
| mixing regime | ≈800 | 80 | 30/100/300/750 | 0.035 |
Both HEURs and prepolymers were investigated in this study.
