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Instrument Characteristics

Differential scanning Calorimetry (DSC)


Model: Q100, TA Instruments

Temperature range:-180 - 725 oC
Temperature accuracy: 0.1 oC
Temperature precision: 0.05 oC
Calorimetric reproducibility (indium): 0.1%
Calorimetric precision (indium): 0.1%
Dynamic measurement range: > 500mW
Baseline curvature (Tzero; -50 -300 oC): 10W
Baseline reproducibility with Tzero: 10W
Sensitivity: 0.2 W
Indium Height/width (mW/ oC): 30

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Differential scanning Calorimetry (DSC)

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According to the ASTM standard E473, DSC is a technique in which the heat flow rate difference into a substance and a reference is measured as a function of temperature, while the sample is subjected to a controlled temperature program. It uses the temperature difference developed between the sample, and a reference for calculation of the heat flow. An exotherm indicates heat flowing out of the sample, while an endotherm indicates heat flowing in.
If a temperature modulation is overlaid on a linear heating or cooling rate the technique is then called Modulated temperature differential scanning calorimetry (MDSC). An MTDSC experiment can not only generate the total heat flow similar to the heat flow obtained in conventional DSC but also separate the total heat flow into its reversing and nonreversing components. The total heat flow is the sum of the thermal events and is generally equivalent to the heat flow seen in conventional DSC. The reversing heat flow is the heat capacity component of the total heat flow.

 

Services Sample properties
  • Glass transition temperature detrmination
  • melting and crystallization temperatures
  • heat of fusion
  • heat of reactions
  • purity determination
  • heat capacity measurements
  • characterization of thermosets
  • chemical reactions kinetics, (cure, thermal and thermooxidative degradation)
  • polymer crystallization kinetics
Sample quantity: 5-20mg

 

 

 

Application Form

Contact Person
J. Parthenios

 

 
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