MTDSC Calculation Procedure

The latter effect is frequently requested in practical conditions to lower the exothermic effect released during the cure of large parts. Besides, TTT 

1) Vitrification during isothermal cure, associated with Z)F o.5, is attained at longer reaction times as the isothermal cure temperature is lowered. 

2) The extent of conversion at DF o.i, T)F o.s or DF qs decreases as the isothermal reaction temperature is lowered, which can be explained in terms of the one-to-one relationship between Tg andx. Close to complete conversion, only small changes in conversion result in large changes in Tg due to the influence of crosslink density. The conversion attained at 

Calculated profiles vitrification curve (-) gelation line (-. -) isodiffusion curves (—) Tg 

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Calibration is a potentially complex subject as there can be cell asymmetries in terms of heat capacity, thermal resistances, and other effects such as convection and emissivity. However, here we shall confine ourselves to a simple procedure that will be effective in most cases. We can consider that calibration of an MTDSC consists of three steps (1) heat flow calibration (by calculation of a cell constant), (2) baseline calibration, and (3) heat capacity calibration (10). 

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