Application Note POLYMER006
Introduction
The internal structure of resin molded products varies greatly depending on molding conditions (temperature, pressure, cooling rate, etc.). In particular, the crystal structure, crystallinity, and orientation state directly affect the strength, rigidity, heat resistance, and appearance of the product, making evaluation essential. Rigaku's X-ray diffractometer enables real-time observation of structural changes during heating and cooling using a temperature control attachment, making it possible to directly evaluate the relationship between molding conditions and structural changes.
Crystal phase analysis
| Analysis: | Raw and parts products |
| Use: | Process control, failure analysis, quality assurance |
| Analyzed materials: | PET |
Figure 1: 2D measurement results of PET film at various temperatures
Figure 2: Variation of 2θ-Int. transformation profiles at different temperatures
Conclusion
Temperature-controlled XRD measurements were performed on PET film to visualize the progression of crystallization and melting during heating in 2D images and profiles. The in-situ measurement allows us to follow the structural changes in real time, providing quantitative data directly related to the optimization of molding conditions.
