Characterization of melt-blended graphene – poly(ether ether ketone) nanocomposite

Arya Tewatia, Justin Hendrix, Zhizhong Dong, Meredith Taghon, Stephen Tse, Gordon Chiu, William E. Mayo, Bernard Kear, Thomas Nosker, Jennifer Lynch

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Using a high shear melt-processing method, graphene-reinforced polymer matrix composites (G-PMCs) were produced with good distribution and particle–matrix interaction of bi/trilayer graphene at 2 wt. % and 5 wt. % in poly ether ether ketone (2Gn-PEEK and 5Gn-PEEK). The morphology, structure, thermal properties, and mechanical properties of PEEK, 2Gn-PEEK and 5 Gn-PEEK were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermal gravimetric analysis (TGA), flexural mechanical testing, and dynamic mechanical analysis (DMA). Addition of graphene to PEEK induces surface crystallization, increased percent crystallinity, offers a composite that is thermally stable until 550 °C and enhances thermomechanical properties. Results show that graphene was successfully melt-blended within PEEK using this method.

Original languageEnglish (US)
Pages (from-to)41-49
Number of pages9
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume216
DOIs
StatePublished - Feb 1 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Graphene
  • High-shear melt-blending
  • Poly (ether ether ketone)
  • Polymer-matrix composites
  • Surface crystallization

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