Differential Scanning Calorimetry (DSC)

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$Glancing Angle X-ray Diffraction (GAXRD) Technique$

TA Instruments DSC’s DSC 2010 DSC 2910 DSC 2920 DSC: What DSC Can Tell You �Glass Transitions �Melting and Boiling Points �Crystallization time and temperature �Percent Crystallinity �Heats of Fusion and Reactions �Specific Heat �Oxidative/Thermal Stability �Rate and Degree of Cure �Reaction Kinetics �Purity
DSC: Definitions A calorimeter measures the heat into or out of a sample. A differential calorimeter measures the heat of a sample relative to a reference. A differential scanning calorimeter does all of the above and heats the sample with a linear temperature ramp. Endothermic heat flows into the sample. Exothermic heat flows out of the sample. DSC: Heat Flow/Specific Heat Capacity ∆H = Cp ∆T or in differential form dH/dt = Cp dT/dt + thermal events where: Cp = specific heat (J/g°C) T = temperature (°C) H = heat (J) dH/dt = heat flow (J/min.) mW = mJ/sec dT/dt = heating rate (°C/min.) assuming work & mass loss are zero
Page 1: Differential Scanning Calorimetry (
Page 5 and 6: DSC: Heat Flow Measurement Alumel w
Page 7 and 8: DSC: Heat Flux Principle The differ
Page 9 and 10: PDSC Pressure DSC (PDSC) : capabili
Page 11 and 12: DSC: Typical DSC Transitions Heat F
Page 13 and 14: DSC: Heating/Cooling Method Heating
Page 15 and 16: DSC: Calibration & Sample Preparati
Page 17 and 18: Heat Flow (W/g) DSC: Temperature Ca
Page 19 and 20: DSC: Traceable Calibration Material
Page 21 and 22: DSC: Effect of Heating Rate on Indi
Page 23 and 24: Heat Flow (W/g) 0.5 0.0 -0.5 -1.0 -
Page 25 and 26: DSC: Baseline Curvature Heat Flow (
Page 27 and 28: Cell Constant DSC: Recommended Purg
Page 29 and 30: DSC: Sample Preparation (cont.) �
Page 31 and 32: DSC: Experimental Conditions �Hea
Page 33 and 34: DSC: Sample Preparation - Hermetic
Page 35 and 36: DSC: Selecting Experimental Conditi
Page 37 and 38: Selecting Experimental Conditions
Page 39 and 40: Heat Flow (W/g) Heat Flow (W/g) DSC
Page 41 and 42: DSC: What is the Glass Transition?
Page 43 and 44: DSC: What Affects the Glass Transit
Page 45 and 46: Effect of Cooling Rate on Tg Heat C
Page 47 and 48: DSC: Effect of Molecular Weight on
Page 49 and 50: DSC: Effect of Side Chains on the T
Page 51 and 52: DSC: Terminology �Amorphous Phase
Page 53 and 54:
Baseline Types: Linear Heat Flow (W
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DSC: PET/ABS Blend "As Received" He
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DSC: Effect of Heating Rate on Nylo
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∆T Exothermic DSC: Isothermal Cry
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DSC: Effect of Polymer Type on Melt
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DSC: Effect of Draw Ratio on Meltin
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DSC: Specific Heat Capacity �What
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DSC: Specific Heat Capacity Equatio
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DSC: Specific Heat Capacity Step 3.
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DSC: Effect of Aging on the Specifi
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DSC: Modulated DSC TM �Theory �
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Heat Flow Heat Flow Kinetic Heat Fl
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Distribution of Transitions in MDSC
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Temperature (°C) Temperature Chang
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Conventional DSC Cp Measurement Cp
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Reversing Heat Flow from MDSC Raw S
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Glass Transition of Polymer Resin M
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MDSC: Detection of Two Glass Transi
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MDSC: Heat Capacity vs. Cure Time T
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MDSC: Sample Pans Standard Hermetic
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MDSC: Heat Flow (Cell Constant) Cal
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K(Cp) K(Cp) MDSC: Heat Capacity Cal
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Differential Scanning Calorimetry (DSC)

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