Application Note: Crystallinity and Density of Polyethylene
5 June 2017
The crystallinity of polyethylene (PE) determines the stiffness, the impact and tensile strength, the permeability and the resistance of the material. Therefore, its measurement is of paramount importance regarding the specifications of a PE grade. Bruker’s PE crystallinity application provides this information fast, with high precision and repeatability. Other commonly employed methods such as Differential Scanning Calorimetry (DSC) or density determination by displacement are significantly slower and require tedious sample preparation. The analysis can be carried out at line by untrained personnel requiring no dedicated lab environment.