Morphological structure and mechanical properties of a nucleated Polyoxymethylene (POM) homopolymer resin processed under conventional injection molding conditions
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Authors
Organisational units
External Organisational units
- Universidade do Minho
- University of Salerno
- Polymer Competence Center Leoben GmbH
Abstract
When injection molding semi-crystalline polymers, it is known that the resulting morphological and mechanical properties are strongly dependent on the processing conditions. Selectively influencing the performance of the final part as early as during processing is of great interest for industrial applications. To investigate the processing-structure-property correlation for a POM hompolymer resin, tensile specimens were manufactured under conventional injection molding conditions following a Design of Experimets (DoE). Morphological characterization was carried out by microscopy and X-ray measurements. Crystallinity was also measured by differential scanning calorimetry (DSC). Additionally, the (fracture) mechanical behaviour of the samples was assessed. Influences of the processing parameters on the crystalline structure and orientations within the material were identified. Furthermore, tensile tests were found to be sensitive to changes in morphology and processing, whereas the fracture behaviour did not change significantly despite the structural changes within the samples.
Details
Original language | English |
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Article number | 108444 |
Number of pages | 13 |
Journal | Polymer Testing |
Volume | 134.2024 |
Issue number | May |
DOIs | |
Publication status | E-pub ahead of print - 7 May 2024 |