10.1186/2193-8865-3-20

Mechanical properties of multi-walled carbon nanotube/polyester nanocomposites

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  • Mahmoud M Shokrieh*1,
  • Ali Saeedi1,
  • Majid Chitsazzadeh2,
  1. Composites Research Laboratory, Center of Excellence in Experimental Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, 16846-13114, IR
  2. Nanocomposites Research Laboratory, Iran University of Science and Technology, Narmak, Tehran, 16846-13114, IR
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Published in Issue 25-04-2013

How to Cite

Shokrieh, M. M., Saeedi, A., & Chitsazzadeh, M. (2013). Mechanical properties of multi-walled carbon nanotube/polyester nanocomposites. Journal of Nanostructure in Chemistry, 3(1 (December 2013). https://doi.org/10.1186/2193-8865-3-20
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Abstract

Abstract Carbon nanotubes (CNTs), due to their superlative mechanical and physical properties, have shown a high potential to improve properties of polymeric composites. Adding CNTs into polymers at very low weight fractions can improve mechanical properties of the resulting nanocomposites. In the present paper, multi-walled carbon nanotubes (MWCNTs) at different weight ratios (0.05, 0.1, and 0.5 wt.%) were added to polyester. Mechanical stirring and sonication technique were used to achieve good dispersion state of MWCNTs in the polymeric matrix. The results of mechanical tests (tensile and flexural) exhibit improvements of tensile and flexural strengths by 6% and 20%, respectively, at only 0.05 wt.% MWCNT. Improvements in Young's modulus and flexural modulus were also observed. Scanning electron microscopy was employed to determine the dispersion state of nanotubes in the matrix as well as the fracture surface properties.

Keywords

  • Carbon nanotube,
  • Polyester,
  • Nanocomposites,
  • Mechanical properties
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References

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