Processing and mechanical properties investigation of epoxy-impregnated graphene paper

Liguang Cai, Ahmed Al-Ostaz, Xiaobing Li, Lawrence T. Drzal, Brian P. Rook, Alexander H D Cheng, Hunain Alkhateb

Research output: Contribution to journalArticle

Abstract

One-layer (0.15-mm-thick) and 15-layer (5.43-mm-thick) graphene composites have been fabricated through the impregnation of epoxy resin into porous graphene nanoplatelet (GnP) paper. Three different flake sizes of GnPs were used for the 1-layer graphene composites: 5 μm, mixed 5 μm and 25 μm, and 25 μm. The largest graphene flakes showed the best material properties in terms of tensile strength and elongation at break. Both tensile and dynamic mechanical analysis (DMA) test results demonstrated that the 15-layer graphene composite had better material properties than the 1-layer graphene composites. The storage modulus of 15-layer graphene composite was 170% higher than that of neat epoxy. The transverse surface of 15-layer graphene composite exhibited a higher elastic modulus but lower hardness than the top surface. Ballistic limit test results showed that the combination of polyurea (PU) and a 15-layer graphene composite coating can increase the ballistic limit of TC-128 steel plate slightly.

LanguageEnglish (US)
Article number04016005
JournalJournal of Nanomechanics and Micromechanics
Volume6
Issue number3
DOIs
StatePublished - Sep 1 2016

Profile

Graphene
Mechanical properties
Processing
Composite materials
Ballistics
Materials properties
Elastic moduli
Composite coatings
Dynamic mechanical analysis
Epoxy resins
Impregnation
Elongation
Tensile strength
Hardness
Steel

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Processing and mechanical properties investigation of epoxy-impregnated graphene paper. / Cai, Liguang; Al-Ostaz, Ahmed; Li, Xiaobing; Drzal, Lawrence T.; Rook, Brian P.; Cheng, Alexander H D; Alkhateb, Hunain.

In: Journal of Nanomechanics and Micromechanics, Vol. 6, No. 3, 04016005, 01.09.2016.

Research output: Contribution to journalArticle

Cai, Liguang ; Al-Ostaz, Ahmed ; Li, Xiaobing ; Drzal, Lawrence T. ; Rook, Brian P. ; Cheng, Alexander H D ; Alkhateb, Hunain. / Processing and mechanical properties investigation of epoxy-impregnated graphene paper. In: Journal of Nanomechanics and Micromechanics. 2016 ; Vol. 6, No. 3.
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