Conductive graphite nanoplatelet/epoxy nanocomposites: Effects of exfoliation and UV/ozone treatment of graphite

Jing Li; Jang Kyo Kim; Man Lung Sham

doi:10.1016/j.scriptamat.2005.03.034

Conductive graphite nanoplatelet/epoxy nanocomposites: Effects of exfoliation and UV/ozone treatment of graphite

Jing Li, Jang Kyo Kim, Man Lung Sham

Mechanical & Nuclear Engineering

The Hong Kong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

162 Scopus citations

Abstract

The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology.

Original language	British English
Pages (from-to)	235-240
Number of pages	6
Journal	Scripta Materialia
Volume	53
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2005.03.034
State	Published - Jul 2005

Keywords

Electrical conductivity
Graphite
Nanocomposite
UV/ozone treatment

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10.1016/j.scriptamat.2005.03.034

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title = "Conductive graphite nanoplatelet/epoxy nanocomposites: Effects of exfoliation and UV/ozone treatment of graphite",

abstract = "The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology.",

keywords = "Electrical conductivity, Graphite, Nanocomposite, UV/ozone treatment",

author = "Jing Li and Kim, {Jang Kyo} and {Lung Sham}, Man",

note = "Funding Information: This project was supported by the Research Grant Council of Hong Kong SAR.",

year = "2005",

month = jul,

doi = "10.1016/j.scriptamat.2005.03.034",

language = "British English",

volume = "53",

pages = "235--240",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier",

number = "2",

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TY - JOUR

T1 - Conductive graphite nanoplatelet/epoxy nanocomposites

T2 - Effects of exfoliation and UV/ozone treatment of graphite

AU - Li, Jing

AU - Kim, Jang Kyo

AU - Lung Sham, Man

N1 - Funding Information: This project was supported by the Research Grant Council of Hong Kong SAR.

PY - 2005/7

Y1 - 2005/7

N2 - The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology.

AB - The effects of ultrasonication and UV/ozone treatment of graphite on electrical conductivity of epoxy-based nanocomposites containing graphite nanoplatelets are investigated. Ultrasonication applied at various stages of composite fabrication enhanced the exfoliation and dispersion of graphite within the matrix. A porous multi-layer graphite structure resulted in a higher electrical conductivity and poorer mechanical properties than the completely exfoliated graphite. UV/ozone treatment improved both the electrical conductivity and mechanical properties by improving the graphite-epoxy interfacial adhesion, which is attributed to ameliorating changes in graphite surface chemistry and morphology.

KW - Electrical conductivity

KW - Graphite

KW - Nanocomposite

KW - UV/ozone treatment

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U2 - 10.1016/j.scriptamat.2005.03.034

DO - 10.1016/j.scriptamat.2005.03.034

M3 - Article

AN - SCOPUS:18144405014

SN - 1359-6462

VL - 53

SP - 235

EP - 240

JO - Scripta Materialia

JF - Scripta Materialia

IS - 2

ER -

Conductive graphite nanoplatelet/epoxy nanocomposites: Effects of exfoliation and UV/ozone treatment of graphite

Abstract

Keywords

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