Thermal Analysis

Thermal analysis includes a group of analytical methods by which a physical property of a substance is measured as a function of temperature while the substance is subjected to a controlled temperature and atmosphere.

With differential scanning calorimetry (DSC) a small sample is heated or cooled using a controlled temperature program in a controlled atmosphere and the heat flow to or from the sample in comparison to a reference is determined.

Thermogravimetric analysis (TGA) permits the continuous determination of sample weight as a function of a temperature / time program and in various atmospheres. Typically, only a few milligrams of a polymer sample is heated with 10 or 20 K min-1 in N2 or O2 to determine its decomposition onset temperature, or the loss of low molecular weight components like residual solvent, plasticizer, etc. 

Determination of:

- melting temperature and melting enthalpy
- the glass transition temperature
- specific heat change
- the temperature and enthalpy change of other phase transitions
- degree of cystallinity of a polymer sample
- mass loss as a function of temperature

Equipment:

TGA, DSC, TMDSC


Contact:   Petra Räder
Telefon: 06131-379-224    
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