Analytical modeling of effect of interlayer on effective moduli of layered graphene-polymer nanocomposites

C. C. Roach, Y. C. Lu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Nanocomposites enhanced with two-dimensional, layered graphene fillers are a new class of engineering materials that exhibit superior properties and characteristics to composites with conventional fillers. However, the roles of “interlayers” in layered graphene fillers have yet to be fully explored. This paper examines the effect of interlayers on mechanical properties of layered graphene polymer composites. As an effective filler, the fundamental properties (in-plane Young's modulus EL1, out-of-plane Young's modulus EL2; shear modulus GL12, major Poisson's ratio νL12) of the layered graphene were computed by using the Arridge's lamellar model. The effects of interlayers on effective moduli of layered graphene epoxy composites were examined through the Tandon-Weng model. The properties of the interlayer show noticeable impact on elastic properties of the composites, particular the out-of-plane properties (Young's modulus E2 and shear modulus G12). The interlayer spacing is seen to have much great influence on properties of the composites. As the interlayer spacing increases from 0.34 nm to 2 nm, all elastic properties of the composites have been greatly decreased.

Original languageEnglish
Pages (from-to)827-833
Number of pages7
JournalJournal of Materials Science and Technology
Volume33
Issue number8
DOIs
StatePublished - Aug 2017

Keywords

  • Effective moduli
  • Interlayer
  • Layered graphene
  • Nanocomposite

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Polymers and Plastics
  • Metals and Alloys
  • Materials Chemistry

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