Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites

Peng Cheng Ma; Shan Yin Mo; Ben Zhong Tang; Jang Kyo Kim

doi:10.1016/j.carbon.2010.01.028

Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites

Peng Cheng Ma, Shan Yin Mo, Ben Zhong Tang, Jang Kyo Kim

Mechanical & Nuclear Engineering

The Hong Kong University of Science and Technology

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

541 Scopus citations

Abstract

The surface, interfacial and dispersion properties of carbon nanotubes (CNTs), and the mechanical properties of the CNT/epoxy composites affected by CNT functionalization are investigated. It is demonstrated that there exists strong correlations between amino-functionalization, dispersion, wettability, interfacial interaction and re-agglomeration behaviour of CNTs and the corresponding mechanical and thermo-mechanical properties of CNT/epoxy composites. The amino-functionalized CNTs exhibit higher surface energy and much better wettability with epoxy resin than the pristine CNTs, and the attached amine molecules arising from the functionalization effectively inhibit the re-agglomeration of CNTs during the curing of resin. These ameliorating effects along with improved interfacial adhesion between the matrix and functionalized CNTs through covalent bonds result in improved flexural and thermo-mechanical properties compared with those without functionalization.

Original language	British English
Pages (from-to)	1824-1834
Number of pages	11
Journal	Carbon
Volume	48
Issue number	6
DOIs	https://doi.org/10.1016/j.carbon.2010.01.028
State	Published - May 2010

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title = "Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites",

abstract = "The surface, interfacial and dispersion properties of carbon nanotubes (CNTs), and the mechanical properties of the CNT/epoxy composites affected by CNT functionalization are investigated. It is demonstrated that there exists strong correlations between amino-functionalization, dispersion, wettability, interfacial interaction and re-agglomeration behaviour of CNTs and the corresponding mechanical and thermo-mechanical properties of CNT/epoxy composites. The amino-functionalized CNTs exhibit higher surface energy and much better wettability with epoxy resin than the pristine CNTs, and the attached amine molecules arising from the functionalization effectively inhibit the re-agglomeration of CNTs during the curing of resin. These ameliorating effects along with improved interfacial adhesion between the matrix and functionalized CNTs through covalent bonds result in improved flexural and thermo-mechanical properties compared with those without functionalization.",

author = "Ma, {Peng Cheng} and Mo, {Shan Yin} and Tang, {Ben Zhong} and Kim, {Jang Kyo}",

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T1 - Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites

AU - Ma, Peng Cheng

AU - Mo, Shan Yin

AU - Tang, Ben Zhong

AU - Kim, Jang Kyo

PY - 2010/5

Y1 - 2010/5

N2 - The surface, interfacial and dispersion properties of carbon nanotubes (CNTs), and the mechanical properties of the CNT/epoxy composites affected by CNT functionalization are investigated. It is demonstrated that there exists strong correlations between amino-functionalization, dispersion, wettability, interfacial interaction and re-agglomeration behaviour of CNTs and the corresponding mechanical and thermo-mechanical properties of CNT/epoxy composites. The amino-functionalized CNTs exhibit higher surface energy and much better wettability with epoxy resin than the pristine CNTs, and the attached amine molecules arising from the functionalization effectively inhibit the re-agglomeration of CNTs during the curing of resin. These ameliorating effects along with improved interfacial adhesion between the matrix and functionalized CNTs through covalent bonds result in improved flexural and thermo-mechanical properties compared with those without functionalization.

AB - The surface, interfacial and dispersion properties of carbon nanotubes (CNTs), and the mechanical properties of the CNT/epoxy composites affected by CNT functionalization are investigated. It is demonstrated that there exists strong correlations between amino-functionalization, dispersion, wettability, interfacial interaction and re-agglomeration behaviour of CNTs and the corresponding mechanical and thermo-mechanical properties of CNT/epoxy composites. The amino-functionalized CNTs exhibit higher surface energy and much better wettability with epoxy resin than the pristine CNTs, and the attached amine molecules arising from the functionalization effectively inhibit the re-agglomeration of CNTs during the curing of resin. These ameliorating effects along with improved interfacial adhesion between the matrix and functionalized CNTs through covalent bonds result in improved flexural and thermo-mechanical properties compared with those without functionalization.

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DO - 10.1016/j.carbon.2010.01.028

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SP - 1824

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Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites

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