Critical evaluation of the stiffening effect of carbon nanotubes in composites

Dong Li Shi*, Xi Qiao Feng, Yonggang Y. Huang, Keh Chih Hwang

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Carbon nanotubes (CNTs) seem to hold a great promise as an ideal reinforcing material for composites of high-strength and low-density. In most experimental results to date, however, only modest improvements in the strength and stiffness have been achieved by incorporating CNTs in polymers. There are many factors that influence the mechanical properties of CNT-reinforced composites, e.g. the weak bonding between CNTs and matrix, the waviness and agglomeration of CNTs. In this paper, the effects of these factors on the stiffness of CNT-reinforced composites are examined. It is found that the waviness and agglomeration may significantly reduce the stiffening effect of CNTs, while the interface adhesion between the matrix and CNTs has little influence.

Original languageEnglish (US)
Pages (from-to)1487-1492
Number of pages6
JournalKey Engineering Materials
Volume261-263
Issue numberII
StatePublished - Jul 28 2004

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Composite materials
Agglomeration
Stiffness
Polymers
Adhesion
Mechanical properties

Keywords

  • Carbon nanotube
  • Effective modulus
  • Interface
  • Microstructure
  • Mori-Tanaka method
  • Nanocomposites

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering (miscellaneous)

Cite this

Shi, Dong Li ; Feng, Xi Qiao ; Huang, Yonggang Y. ; Hwang, Keh Chih. / Critical evaluation of the stiffening effect of carbon nanotubes in composites. In: Key Engineering Materials. 2004 ; Vol. 261-263, No. II. pp. 1487-1492.
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Shi, DL, Feng, XQ, Huang, YY & Hwang, KC 2004, 'Critical evaluation of the stiffening effect of carbon nanotubes in composites', Key Engineering Materials, vol. 261-263, no. II, pp. 1487-1492.

Critical evaluation of the stiffening effect of carbon nanotubes in composites. / Shi, Dong Li; Feng, Xi Qiao; Huang, Yonggang Y.; Hwang, Keh Chih.

In: Key Engineering Materials, Vol. 261-263, No. II, 28.07.2004, p. 1487-1492.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Critical evaluation of the stiffening effect of carbon nanotubes in composites

AU - Shi, Dong Li

AU - Feng, Xi Qiao

AU - Huang, Yonggang Y.

AU - Hwang, Keh Chih

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Y1 - 2004/7/28

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AB - Carbon nanotubes (CNTs) seem to hold a great promise as an ideal reinforcing material for composites of high-strength and low-density. In most experimental results to date, however, only modest improvements in the strength and stiffness have been achieved by incorporating CNTs in polymers. There are many factors that influence the mechanical properties of CNT-reinforced composites, e.g. the weak bonding between CNTs and matrix, the waviness and agglomeration of CNTs. In this paper, the effects of these factors on the stiffness of CNT-reinforced composites are examined. It is found that the waviness and agglomeration may significantly reduce the stiffening effect of CNTs, while the interface adhesion between the matrix and CNTs has little influence.

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KW - Effective modulus

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KW - Microstructure

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