Fracture toughness and electrical conductivity of epoxy composites filled with carbon nanotubes and spherical particles

Long Cheng Tang; Yan Jun Wan; Ke Peng; Yong Bing Pei; Lian Bin Wu; Li Min Chen; Li Jin Shu; Jian Xiong Jiang; Guo Qiao Lai

doi:10.1016/j.compositesa.2012.09.012

Fracture toughness and electrical conductivity of epoxy composites filled with carbon nanotubes and spherical particles

Long Cheng Tang, Yan Jun Wan, Ke Peng, Yong Bing Pei, Lian Bin Wu, Li Min Chen, Li Jin Shu, Jian Xiong Jiang, Guo Qiao Lai

Chemistry and Physics

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

141 Scopus citations

Abstract

The attainment of both high toughness and superior electrical conductivity of epoxy composites is a crucial requirement in some engineering applications. Herein, we developed a strategy to improve these performances of epoxy by combining the multi-wall carbon nanotubes (MWCNTs) and spherical particles. Two different types of spherical particles i.e. soft submicron-rubber and rigid nano-silica particles were chosen to modify the epoxy/MWCNT composites. Compared with the binary composites with single-phase particles, the ternary composites with MWCNTs and spherical particles offer a good balance in glass transition temperature, electrical conductivity, stiffness and strength, as well as fracture toughness, exhibiting capacities in tailoring the electrical and mechanical properties of epoxy composites. Based on the fracture surface analysis, the complicated interactions between multiscale particles and the relative toughening mechanisms were evaluated to explain the enhancement in fracture toughness of the ternary composites.

Original language	English (US)
Pages (from-to)	95-101
Number of pages	7
Journal	Composites Part A: Applied Science and Manufacturing
Volume	45
DOIs	https://doi.org/10.1016/j.compositesa.2012.09.012
State	Published - Feb 1 2013

Keywords

A. Nano-structures
A. Polymer-matrix composites (PMCs)
B. Electrical properties
B. Fracture toughness

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials

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10.1016/j.compositesa.2012.09.012

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title = "Fracture toughness and electrical conductivity of epoxy composites filled with carbon nanotubes and spherical particles",

abstract = "The attainment of both high toughness and superior electrical conductivity of epoxy composites is a crucial requirement in some engineering applications. Herein, we developed a strategy to improve these performances of epoxy by combining the multi-wall carbon nanotubes (MWCNTs) and spherical particles. Two different types of spherical particles i.e. soft submicron-rubber and rigid nano-silica particles were chosen to modify the epoxy/MWCNT composites. Compared with the binary composites with single-phase particles, the ternary composites with MWCNTs and spherical particles offer a good balance in glass transition temperature, electrical conductivity, stiffness and strength, as well as fracture toughness, exhibiting capacities in tailoring the electrical and mechanical properties of epoxy composites. Based on the fracture surface analysis, the complicated interactions between multiscale particles and the relative toughening mechanisms were evaluated to explain the enhancement in fracture toughness of the ternary composites.",

keywords = "A. Nano-structures, A. Polymer-matrix composites (PMCs), B. Electrical properties, B. Fracture toughness",

author = "Tang, {Long Cheng} and Wan, {Yan Jun} and Ke Peng and Pei, {Yong Bing} and Wu, {Lian Bin} and Chen, {Li Min} and Shu, {Li Jin} and Jiang, {Jian Xiong} and Lai, {Guo Qiao}",

note = "Funding Information: This project was supported by the National Natural Science Foundation of China (Grant No. 51203038 ), the Starting Foundation for Scholars of Hangzhou Normal University (Grant No. 2012QDL022 ) and the Scientific Research Fund of Zhejiang Provincial Education Department (Grant No. Y201224314 ).",

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doi = "10.1016/j.compositesa.2012.09.012",

language = "English (US)",

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AU - Tang, Long Cheng

AU - Wan, Yan Jun

AU - Peng, Ke

AU - Pei, Yong Bing

AU - Wu, Lian Bin

AU - Chen, Li Min

AU - Shu, Li Jin

AU - Jiang, Jian Xiong

AU - Lai, Guo Qiao

N1 - Funding Information: This project was supported by the National Natural Science Foundation of China (Grant No. 51203038 ), the Starting Foundation for Scholars of Hangzhou Normal University (Grant No. 2012QDL022 ) and the Scientific Research Fund of Zhejiang Provincial Education Department (Grant No. Y201224314 ).

PY - 2013/2/1

Y1 - 2013/2/1

N2 - The attainment of both high toughness and superior electrical conductivity of epoxy composites is a crucial requirement in some engineering applications. Herein, we developed a strategy to improve these performances of epoxy by combining the multi-wall carbon nanotubes (MWCNTs) and spherical particles. Two different types of spherical particles i.e. soft submicron-rubber and rigid nano-silica particles were chosen to modify the epoxy/MWCNT composites. Compared with the binary composites with single-phase particles, the ternary composites with MWCNTs and spherical particles offer a good balance in glass transition temperature, electrical conductivity, stiffness and strength, as well as fracture toughness, exhibiting capacities in tailoring the electrical and mechanical properties of epoxy composites. Based on the fracture surface analysis, the complicated interactions between multiscale particles and the relative toughening mechanisms were evaluated to explain the enhancement in fracture toughness of the ternary composites.

AB - The attainment of both high toughness and superior electrical conductivity of epoxy composites is a crucial requirement in some engineering applications. Herein, we developed a strategy to improve these performances of epoxy by combining the multi-wall carbon nanotubes (MWCNTs) and spherical particles. Two different types of spherical particles i.e. soft submicron-rubber and rigid nano-silica particles were chosen to modify the epoxy/MWCNT composites. Compared with the binary composites with single-phase particles, the ternary composites with MWCNTs and spherical particles offer a good balance in glass transition temperature, electrical conductivity, stiffness and strength, as well as fracture toughness, exhibiting capacities in tailoring the electrical and mechanical properties of epoxy composites. Based on the fracture surface analysis, the complicated interactions between multiscale particles and the relative toughening mechanisms were evaluated to explain the enhancement in fracture toughness of the ternary composites.

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KW - A. Polymer-matrix composites (PMCs)

KW - B. Electrical properties

KW - B. Fracture toughness

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Fracture toughness and electrical conductivity of epoxy composites filled with carbon nanotubes and spherical particles

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ASJC Scopus subject areas

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