Table 2 Comparison of the heats of reaction (ΔH) values and heat degradation ratios according to moisture-induced ageing levels as obtained from non-calorimetric (CEA) and calorimetric analyses (DSC).
Moisture-induced ageing condition [days] | Non-calorimetric results from CEA | Calorimetric results from DSC | ||
---|---|---|---|---|
Enthalpy of reaction [J/g] | Heat degradation ratio (%) | Enthalpy of reaction [J/g] | Heat degradation ratio (%) | |
0 | −1,998.07 | 100.00 | 684.69 | 100.00 |
8 | −1,207.14 | 60.41 | 445.39 | 65.04 |
15 | −995.33 | 49.81 | 373.79 | 54.59 |
25 | −908.74 | 45.48 | 340.30 | 49.70 |