MDSC® Technology Provides:
Separation of complex transitions into more easily interpreted components • Increased sensitivity for detecting weak transitions and melts • Increased resolution without loss of sensitivity • Direct measurement of heat capacity • More accurate measurement of crystallinity
In MDSC, a sinusoidal temperature oscillation is overlaid on the traditional linear ramp. The net effect is that heat flow can be measured simultaneously with, and independently of, changes in heat capacity. In MDSC, the DSC heat flow is called the Total Heat Flow, the heat capacity component is the Reversing Heat Flow, and the kinetic component is the Nonreversing Heat Flow. The Total Heat Flow signal contains the sum of all thermal transitions, just as in standard DSC. The Reversing Heat Flow contains glass transition and melting transitions, while the Nonreversing Heat Flow contains kinetic events like curing, volatilization, melting, and decomposition. The Q2000 uniquely permits increased MDSC productivity of high quality data by its ability to operate at standard DSC heating rates (e.g., 10°C/min).
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