Effect of Electrode Geometry on Surface Modification of Polyethylene Terephthalate by Dielectric Barrier Discharge Produced in Air at Atmospheric Pressure

Authors

  • Rajesh Prakash Guragain Department of Physics, School of Science, Kathmandu University, Dhulikhel, Nepal
  • Ujjwal Man Joshi Department of Physics, School of Science, Kathmandu University, Dhulikhel, Nepal
  • Deepak Prasad Subedi Department of Physics, School of Science, Kathmandu University, Dhulikhel, Nepal
  • Hom Bahadur Baniya Department of Physics, Tri-Chandra College, Tribhuvan University, Kathmandu, Nepal

DOI:

https://doi.org/10.3126/kuset.v15i3.63348

Keywords:

Atmospheric pressure plasma, Electron density, Electron temperature, Polymer, Wettability

Abstract

This paper presents the effect of electrode geometry on the surface modification of polyethylene terephthalate (PET) as a function of distance using 50 Hz dielectric barrier discharge at atmospheric pressure conditions. The polymer samples were treated with a Gaussian shaped electrode using a 13 kV power supply at line frequency for 1 minute. The results demonstrated that plasma treatment with a Gaussian shaped electrode improves the sample's surface wettability significantly. It is seen that there is a remarkable decrease in contact angle at the center of the sample and a relatively smaller amount of decrement away from the center of the sample.

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Published

2021-12-30

How to Cite

Guragain, R. P., Joshi, U. M., Subedi, D. P., & Baniya, H. B. (2021). Effect of Electrode Geometry on Surface Modification of Polyethylene Terephthalate by Dielectric Barrier Discharge Produced in Air at Atmospheric Pressure. Kathmandu University Journal of Science, Engineering and Technology, 15(3). https://doi.org/10.3126/kuset.v15i3.63348

Issue

Vol. 15 No. 3 (2021)

Section

Original Research Articles

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