DSC/thermal analysis: melting and crystallisation behaviour

DSC run (Differential Scanning Calorimetry) for determination of crystal melting point Tpm and melting enthalpy delta H (further characteristics, e. g. crystallisation temperature Tc, depending on material, available on request) by means of two heating runs.

In short — AI-generated

Differential Scanning Calorimetry (DSC) measures the heat flow required to heat or cool a plastic sample compared to a reference. By performing two controlled heating runs, we determine the material's specific melting and crystallization behavior according to DIN EN ISO 11357-3.

The resulting melting point and enthalpy values help identify the polymer type and assess its thermal stability. This data is used in practice to optimize processing parameters, such as sealing temperatures, and to ensure consistent material quality in flexible packaging.

Text is AI-generated; based on test method data curated and verified by Innoform.

Test Method Group: Material analysis

Norms:

DIN EN ISO 11357-3 (2025-09) Plastics – Differential scanning calorimetry (DSC) – Part 3: Determination of temperature and enthalpy of melting and crystallization

Required Sample Amount: Minimum 100 mg (min. 100 g for measurements on material to be ground)

Standard Tests

DSC heating up to 200°C (for PE, PP, etc.)

Specific Norm: DIN EN ISO 11357-3

This method is common for all kinds of articles made out of PE and it's copolymers as well for PP (e.g. films, granules, moulded parts, etc.), other test parameters on request.

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DSC heating up to 300°C (for laminated films, PA, PET, etc.)

Specific Norm: DIN EN ISO 11357-3

This method is common for all kinds of articles made out raw materials which are more heat resistant (e.g. laminated films, PA, PET, EVOH etc.), other test parameters on request.

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