Ductile woven silk fibre thermoplastic composites with quasi-isotropic strength

Aart Willem Van Vuure, Jan Vanderbeke, Yasmine Mosleh, Ignaas Verpoest, Nedda El-Asmar

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The combination of ductile Bombyx Mori silk fibre with ductile thermoplastic matrices, combined with the use of a woven fibre architecture, leads to ductile composites with quasi-isotropic strength. Bending and tensile properties were determined for (0,90)s silk twill weave composites, with different thermoplastic polymers and as reference epoxy resin. Thermoplastic (0,90)s woven silk fibre composites are isotropic in strength (about 135 MPa at 50% fibre volume fraction) due to the high elongation to failure of both the silk fibre and the thermoplastic matrix allowing extensive shearing of the silk fabric when loaded in the 45° direction. A good quality interface has a clear positive influence on the mechanical properties especially on the bending yield strength.

Original languageEnglish
Article number106442
Number of pages7
JournalComposites Part A: Applied Science and Manufacturing
Volume147
DOIs
Publication statusPublished - 2021

Keywords

  • Ductility
  • Interface
  • Mechanical testing
  • Polymer matrix composites
  • Silk fibres
  • Thermoplastic composites

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