Morphological structure and mechanical properties of a nucleated Polyoxymethylene (POM) homopolymer resin processed under conventional injection molding conditions

Research output: Contribution to journalArticleResearchpeer-review

Authors

  • Theresia Schrank
  • Bruno Ramoa
  • Roberto Pantani
  • Michael Berer

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 languageEnglish
Article number108444
Number of pages13
JournalPolymer Testing
Volume134.2024
Issue numberMay
DOIs
Publication statusE-pub ahead of print - 7 May 2024