Standard Test Method for Measurement of Enthalpy of Fusion, Percent Crystallinity, and Melting Point of Ultra-High Molecular Weight Polyethylene by Means of Differential Scanning Calorimetry

Importancia y uso:

5.1 The crystallinity of UHMWPE will influence its mechanical properties, such as creep and stiffness. The reported crystallinity will depend on the integration range used to determine the heat of fusion, and the theoretical heat of fusion of 100 % crystalline polyethylene used to calculate the percent crystallinity in an unknown specimen. Differential scanning calorimetry is an effective means of accurately measuring both heat of fusion and melting temperature.

5.2 This test method is useful for both process control and research.

Subcomité:

F04.15

Referida por:

F2565-21, F2848-21, F2759-19

Volúmen:

13.02

Número ICS:

07.030 (Physics. Chemistry), 17.200.10 (Heat. Calorimetry)

Palabras clave:

crystallinity; differential scanning calorimetry; heat of fusion; melting temperature; thermal analysis; UHMWPE;