PE-HD, Characterization by Crystallization Behavior

Sample

Lupolen 4261 pellets and a molded part said to be Lupolen 4261

Conditions

Measuring cell: DSC20

Pan: Aluminum standard 40 ul, pierced lid

Sample preparation: Disks of approx. 5.0 mg cut from pellet or part

DSC measurement: Melting the sample by heating to 200°C  at 10 K/min. Actual measurement: cooling from 200 to 25°C at 10 K/min

Atmosphere: Nitrogen, 50 cm³/min

Evaluation

Interpretation

The crystallization behavior is characterized by the crystallization onset, the peak width and the heat of crystallization. In addition, the conversion curve and table are useful for comparison purposes.

Conclusion

The crystallization behavior of the two samples is similar. The melting behavior of the same samples is compared in the previous experiment. The heats of crystallization differ by about the same amount as measured before the melting experiment.

^{PE-HD, Characterization by Crystallization Behavior | Thermal Analysis Application No. HB 203 | Application published in METTLER TOLEDO TA Application Handbook Thermoplastics}