Characterization of Polymers-4

Series 4: Characterization of thermal properties

The most common methods used to analyze the thermal properties of polymers are Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis (TGA).

✴ DSC analysis;

- This method can be used for all types of polymers, but it is an expensive method due to the equipment.

- Tg (glass transition temperature), Tc (crystallization temperature) and Tm (melting temperature) values of polymers are determined and enthalpy changes can be measured.

- The temperature increase value in the method used in the analysis can affect the determination of Tg, Tc and Tm of the polymer. The method is created with the optimum temperature rise and temperature range for the sample.

- With DSC analysis, properties such as processing temperature for thermoplastics, curing temperature and time for thermosets can be determined according to the type of polymers.

✴ TGA analysis;

- The thermal decomposition temperatures of polymers and their mass changes with temperature can be determined.

- It is an effective method for characterized the thermal properties of polymers with improved incombustibility or inorganic filled polymers.

- The amount of heating, the homogeneity of the sample and the change in its physical properties are the parameters affecting the analysis.