Effect of amino-functionalization on the interfacial adhesion of multi-walled carbon nanotubes/epoxy nanocomposites

Yunfeng Luo; Yan Zhao; Jizhe Cai; Yuexin Duan; Shanyi Du

doi:10.1016/j.matdes.2011.04.033

Effect of amino-functionalization on the interfacial adhesion of multi-walled carbon nanotubes/epoxy nanocomposites

Yunfeng Luo
, Yan Zhao^*
, Jizhe Cai
, Yuexin Duan
, Shanyi Du

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

86 Scopus citations

Abstract

Two types of multi-walled carbon nanotubes (MWCNTs) functionalized with different amino-organics, dicyanodiamide and phenylbiguanide, respectively, were achieved in this paper. The physico-chemical properties of MWCNTs before and after amino group modification were characterized by thermogravimetric analysis (TGA), Raman spectroscopy and inverse gas chromatography (IGC). The results showed that amino-functionalization changed evidently the surface properties of MWCNTs, such as the dispersive surface energy (decreased from 122.95mJ/m² to 18.65mJ/m² and 25.69mJ/m², respectively) and specific surface energy (decreased from 8.84mJ/m² to 0.56mJ/m² and 4.60mJ/m², respectively) for two functionalized MWCNTs. And then, the interfacial adhesion states of the functionalized MWCNTs/epoxy nanocomposites were investigated using scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The results also indicated that the dispersion of MWCNTs in epoxy resin and the interfacial adhesion of MWCNTs/epoxy nanocomposites were both strongly dependent on the surface physico-chemical properties of functionalized MWCNTs, and the effect of MWCNTs functionalized by phenylbiguanide with slightly higher polarity was better.

Original language	English
Pages (from-to)	405-412
Number of pages	8
Journal	Materials and Design
Volume	33
Issue number	1
DOIs	https://doi.org/10.1016/j.matdes.2011.04.033
State	Published - Jan 2012

Keywords

A. Nanomaterials
C. Surface treatment
I. Adhesion

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10.1016/j.matdes.2011.04.033

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title = "Effect of amino-functionalization on the interfacial adhesion of multi-walled carbon nanotubes/epoxy nanocomposites",

abstract = "Two types of multi-walled carbon nanotubes (MWCNTs) functionalized with different amino-organics, dicyanodiamide and phenylbiguanide, respectively, were achieved in this paper. The physico-chemical properties of MWCNTs before and after amino group modification were characterized by thermogravimetric analysis (TGA), Raman spectroscopy and inverse gas chromatography (IGC). The results showed that amino-functionalization changed evidently the surface properties of MWCNTs, such as the dispersive surface energy (decreased from 122.95mJ/m2 to 18.65mJ/m2 and 25.69mJ/m2, respectively) and specific surface energy (decreased from 8.84mJ/m2 to 0.56mJ/m2 and 4.60mJ/m2, respectively) for two functionalized MWCNTs. And then, the interfacial adhesion states of the functionalized MWCNTs/epoxy nanocomposites were investigated using scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The results also indicated that the dispersion of MWCNTs in epoxy resin and the interfacial adhesion of MWCNTs/epoxy nanocomposites were both strongly dependent on the surface physico-chemical properties of functionalized MWCNTs, and the effect of MWCNTs functionalized by phenylbiguanide with slightly higher polarity was better.",

keywords = "A. Nanomaterials, C. Surface treatment, I. Adhesion",

author = "Yunfeng Luo and Yan Zhao and Jizhe Cai and Yuexin Duan and Shanyi Du",

year = "2012",

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doi = "10.1016/j.matdes.2011.04.033",

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T1 - Effect of amino-functionalization on the interfacial adhesion of multi-walled carbon nanotubes/epoxy nanocomposites

AU - Luo, Yunfeng

AU - Zhao, Yan

AU - Cai, Jizhe

AU - Duan, Yuexin

AU - Du, Shanyi

PY - 2012/1

Y1 - 2012/1

N2 - Two types of multi-walled carbon nanotubes (MWCNTs) functionalized with different amino-organics, dicyanodiamide and phenylbiguanide, respectively, were achieved in this paper. The physico-chemical properties of MWCNTs before and after amino group modification were characterized by thermogravimetric analysis (TGA), Raman spectroscopy and inverse gas chromatography (IGC). The results showed that amino-functionalization changed evidently the surface properties of MWCNTs, such as the dispersive surface energy (decreased from 122.95mJ/m2 to 18.65mJ/m2 and 25.69mJ/m2, respectively) and specific surface energy (decreased from 8.84mJ/m2 to 0.56mJ/m2 and 4.60mJ/m2, respectively) for two functionalized MWCNTs. And then, the interfacial adhesion states of the functionalized MWCNTs/epoxy nanocomposites were investigated using scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The results also indicated that the dispersion of MWCNTs in epoxy resin and the interfacial adhesion of MWCNTs/epoxy nanocomposites were both strongly dependent on the surface physico-chemical properties of functionalized MWCNTs, and the effect of MWCNTs functionalized by phenylbiguanide with slightly higher polarity was better.

AB - Two types of multi-walled carbon nanotubes (MWCNTs) functionalized with different amino-organics, dicyanodiamide and phenylbiguanide, respectively, were achieved in this paper. The physico-chemical properties of MWCNTs before and after amino group modification were characterized by thermogravimetric analysis (TGA), Raman spectroscopy and inverse gas chromatography (IGC). The results showed that amino-functionalization changed evidently the surface properties of MWCNTs, such as the dispersive surface energy (decreased from 122.95mJ/m2 to 18.65mJ/m2 and 25.69mJ/m2, respectively) and specific surface energy (decreased from 8.84mJ/m2 to 0.56mJ/m2 and 4.60mJ/m2, respectively) for two functionalized MWCNTs. And then, the interfacial adhesion states of the functionalized MWCNTs/epoxy nanocomposites were investigated using scanning electron microscope (SEM) and dynamic mechanical analysis (DMA). The results also indicated that the dispersion of MWCNTs in epoxy resin and the interfacial adhesion of MWCNTs/epoxy nanocomposites were both strongly dependent on the surface physico-chemical properties of functionalized MWCNTs, and the effect of MWCNTs functionalized by phenylbiguanide with slightly higher polarity was better.

KW - A. Nanomaterials

KW - C. Surface treatment

KW - I. Adhesion

UR - https://www.scopus.com/pages/publications/80053998456

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DO - 10.1016/j.matdes.2011.04.033

M3 - 文章

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SN - 0264-1275

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JO - Materials and Design

JF - Materials and Design

IS - 1

ER -

Effect of amino-functionalization on the interfacial adhesion of multi-walled carbon nanotubes/epoxy nanocomposites

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