The effect of the transcrystalline layer on the mechanical properties of composite materials in the fibre direction

Hannah Nuriel, Nava Klein, Gad Marom*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Two sets of unidirectional composites of aramid fibre reinforced Nylon 66 were prepared, by quenching and by crystallizing, respectively. Each set covered a wide range of fibre volume fractions, from 0.005 in microcomposites to 0.65. It was confirmed that the crystallization conditions employed for the crystallized set produced a substantial transcrystalline layer. Mechanical testing of the longitudinal strength and modulus revealed a significant transcrystallinity induced improvement which was fibre-content dependent. That observation was taken as a valid proof of the assumption that an effective contribution of the transcrystalline layer is generated only when the c-axis (chain axis) of the polymer in the transcrystalline layer is parallel to the fibre.

Original languageEnglish
Pages (from-to)1685-1690
Number of pages6
JournalComposites Science and Technology
Volume59
Issue number11
DOIs
StatePublished - Aug 1999

Keywords

  • A. Aramid fibre
  • A. Polymer-matrix composites
  • B. Mechanical properties
  • Transcrystallinity

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