Eff ects of micro-structural parameters on mechanical properties of carbon nanotube polymer nanocomposites

Authors

1 Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia.

2 Department of Mechanical Engineering and Centre of Excellence in Smart Structures and Dynamical Systems, Amirkabir

3 Department of Mechanical Engineering, Iran University of Science and Technology, Tehran, P.O. Box 16846-13114, Iran

4 Institute for Frontier Materials, Deakin University, Locked Bag 20000, Geelong, Victoria 3220, Australia

Abstract

A comparison between the elastic modulus of carbon nanotube (CNT) polymer nano composites predicted by classical micromechanics theories, based on continuum mechanics and experimental data, was made and the results revealed a great di erence. To improve the accuracy of these models, a new two-step semi-analytical method was developed, which allowed consideration of the e ect of the interphase, in addition to CNT and matrix, in the modeling of nanocomposites. Based on this developed method, the in fluence of microstructural parameters, such as CNT volume fraction, CNT aspect ratio, partial and complete agglomerations of CNTs, and overlap and exfoliation of CNTs, on the overall elastic modulus of nanocomposites was investigated.

Keywords

Scientia Iranica
Volume 21, Issue 2
Transactions on Mechanical Engineering (B)
April 2014
Pages 403-413

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History

  • Receive Date: 03 May 2014
  • Revise Date:
  • Accept Date: 27 July 2017

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