Experimental study of effect of laser machining process of CO2 on electrical conductivity and magnetic properties of PMMA/MWCNT composite

Document Type : Article

Authors

1 Department of Mechanical Engineering, Tabriz Branch, Islamic Azad University, 5157944533, Tabriz, Iran

2 Institute for Polymers and Composites (IPC), Department of Polymer Engineering, Campus of Azurem, University of Minho, 4800-058 Guimaraes, Portugal

Abstract

The present work aims to investigate the effect of the parameters of the laser machining process and laser line angle to injection direction of sample plastics on the electrical resistance of Polymethyl Methyl Methacrylate (PMMA)/Multi-Wall Carbon Nanotubes (MWCNT) Nano-composite. The laser machining process was performed on the samples considering a combination of power, feed rate, and laser line angle with respect to to the direction of melted flow parameters. According to the obtained results from electrical resistance and magnetic properties measurements, this was demonstrated that the laser line angle to the direction of melted flow does not statistically, and physically affect the electrical resistance of the composite. And increasing laser machining power leads to electrical resistance reduction. On another hand, feed rate enhancement (with fixed lasering power) causes increasing the electrical resistance. Moreover, this is found out that laser machining does not significantly affect the magnetic properties of the samples.

Keywords

References

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Scientia Iranica
Volume 29, Issue 6 - Serial Number 6
Transactions on Nanotechnology (F)
November and December 2022
Pages 3543-3553

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History

  • Receive Date: 31 March 2020
  • Revise Date: 20 November 2021
  • Accept Date: 03 January 2022

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