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3D network graphene interlayer for excellent interlaminar toughness and strength in fiber reinforced composites

  • Jingjing Jia*
  • , Xusheng Du
  • , Chao Chen
  • , Xinying Sun
  • , Yiu Wing Mai
  • , Jang Kyo Kim
  • *Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

Abstract

A novel CVD grown 3D network graphene is used as interleaves to toughen and strengthen glass fiber reinforced epoxy composite (GF/EP). Remarkable increases of 70% and 206% in mode I and mode II interlaminar fracture energies, respectively, and 36% enhancement in interlaminar shear strength are achieved in GF/EP by incorporating network graphene in the failure-prone mid-plane compared to those composite laminates without interleaves. Pertinent toughening mechanisms include crack deflection and formation of interfacial micro-cracks with significant increase in surface areas owing to the 3D hollow sphere-like graphene wrapping around the epoxy matrix as well as graphene fracture and slippage between adjacent layers.

Original languageEnglish
Pages (from-to)978-986
Number of pages9
JournalCarbon
Volume95
DOIs
Publication statusPublished - 11 Oct 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

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