The values of activation energy obtained by FWO and Starink method at different fractional conversions.
The first curing reaction stage | The second curing reaction stage | ||||||||
---|---|---|---|---|---|---|---|---|---|
α | E a-FWO, kJ mol−1 | R FWO 2 a | E a-Starink, kJ mol−1 | R Starink 2 | α | E a-FWO, kJ mol−1 | R FWO 2 | E a-Starink, kJ mol−1 | R Starink 2 |
0.05 | 84.1 | 0.99888 | 81.2 | 0.99862 | 0.50 | 64.4 | 0.99391 | 59.3 | 0.99233 |
0.10 | 76.2 | 0.99936 | 72.7 | 0.99916 | 0.55 | 72.4 | 0.99660 | 67.5 | 0.99584 |
0.15 | 72.2 | 0.99982 | 68.4 | 0.99976 | 0.60 | 78.8 | 0.99744 | 74.1 | 0.99692 |
0.20 | 69.1 | 0.99990 | 65.1 | 0.99986 | 0.65 | 84.3 | 0.99832 | 79.7 | 0.99802 |
0.25 | 66.8 | 0.99978 | 62.5 | 0.99974 | 0.70 | 89.1 | 0.99896 | 84.7 | 0.99880 |
0.30 | 64.4 | 0.99958 | 59.9 | 0.99954 | 0.75 | 93.0 | 0.99950 | 88.8 | 0.99944 |
0.35 | 61.9 | 0.99860 | 57.1 | 0.99834 | 0.80 | 96.2 | 0.99982 | 92.0 | 0.99980 |
0.40 | 59.6 | 0.99696 | 54.6 | 0.99624 | 0.85 | 98.1 | 0.99980 | 94.0 | 0.99976 |
0.45 | 59.7 | 0.99367 | 54.4 | 0.99194 | 0.90 | 97.9 | 0.99990 | 93.7 | 0.99988 |
Mean | 68.2 | 64.0 | 0.95 | 94.6 | 0.99938 | 90.2 | 0.99920 | ||
Mean | 86.9 | 82.4 |
R 2, coefficient of determination.