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 |