Enhanced Ductility of PEEK thin film with self-assembled fibre-like crystals View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2018-12

AUTHORS

Yuan Wang, Binling Chen, Ken Evans, Oana Ghita

ABSTRACT

Poly Ether Ether Ketone (PEEK) is a high temperature polymer material known for its excellent chemical resistance, high strength and toughness. As a semi-crystalline polymer, PEEK can become very brittle during long crystallisation times and temperatures helped as well by its high content of rigid benzene rings within its chemical structure. This paper presents a simple quench crystallization method for preparation of PEEK thin films with the formation of a novel fibre-like crystal structure on the surface of the films. These quenched crystallised films show higher elongation at break when compared with conventional melt crystallised thin films incorporating spherulitic crystals, while the tensile strength of both types of films (quenched crystallised and conventional melt) remained the same. The fracture analysis carried out using microscopy revealed an interesting microstructure which evolves as a function of annealing time. Based on these results, a crystal growth mechanism describing the development of the fibre-like crystals on the surface of the quenched crystallised films is proposed. More... »

PAGES

1314

References to SciGraph publications

  • 1989-02. Poly(p-phenylene sulphide) single crystals in JOURNAL OF MATERIALS SCIENCE LETTERS
  • 1987-05. On the crystal texture of linear polyaryls (PEEK, PEK and PPS) in JOURNAL OF MATERIALS SCIENCE
  • 1988-04. High-resolution electron microscopy of solution-grown crystals of poly (p-phenylene sulphide) in JOURNAL OF MATERIALS SCIENCE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1038/s41598-018-19537-1

    DOI

    http://dx.doi.org/10.1038/s41598-018-19537-1

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1100427027

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/29358588


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