Differential Scanning Calorimetry (DSC)

MDSC Signals - Nonreversing Heat Flow
(Kinetic Component)
Nonreversing Heat Flow is the kinetic component of the total heat
flow. It is calculated by subtracting the heat capacity component from the
total heat flow using the classical heat flow equation as a theoretical basis.
Nonreversing = Total – Reversing
Basis for Calculation
dH dT
= Cp + f (T, t)
dt dt
dH
= total heat flow
dt
dT
Cp = heat capacity component (reversing)
dt
f (T, t) = kinetic component (nonreversing)
Quench-Cooled PET: Deconvoluted Signals
Heat Flow (W/g)
0.25
0.15
0.05
-0.05
-0.15
-0.25
NONREVERSING
TOTAL
REVERSING
0.25
0.15
0.05
-0.05
-0.15
-0.25
50 100 150 200 250 300
Nonrev Heat Flow (W/g)
0.1
0.0
-0.1
-0.2
Rev Heat Flow (W/g)