Surface modification of polyethylene terephthalate (PET) by corona discharge plasma

Authors

  • O. Flores Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico (UNAM), PO Box 48-3, 62251, Cuernavaca, Morelos, Mexico
  • B. Campillo Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico (UNAM), PO Box 48-3, 62251, Cuernavaca, Morelos, Mexico
  • F. Castillo Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico (UNAM), PO Box 48-3, 62251, Cuernavaca, Morelos, Mexico https://orcid.org/0000-0003-0746-4943
  • H. Martínez Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico (UNAM), PO Box 48-3, 62251, Cuernavaca, Morelos, Mexico
  • J. Colín Faculty of Chemistry and Engineering, Autonomous University of the State of Morelos, Av. Universidad # 1001, Col. Chamilpa, CP 62209, Cuernavaca, Morelos México

DOI:

https://doi.org/10.15415/jnp.2021.82016

Keywords:

Electric discharge, Corona, Atmospheric pressure, PET, SEM, Degradation

Abstract

Surface modification of polyethylene terephthalate (PET) was studied by corona discharge plasma at different exposure times using air as working gas. The modification of the surface properties are characterized, those are morphology and wettability. Corona plasma treatment was found to modify the PET surface in both morphology and wettability. The corona discharge at atmospheric pressure is a heterogeneous with multiple current pulses, which generates an asymmetric pattern of erosion on the PET surface. The corona discharge treatment erodes the surface and therefore modifies the surface morphology. The roughness of the PET surface increases in the impact point of the corona discharge on the PET surface. An increase in the wettability of PET was also observed after corona discharge treatment at atmospheric pressure.

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Published

2021-02-10

How to Cite

(1)
Flores, O.; Campillo, B.; Castillo, F. .; Martínez, H.; Colín, J. . Surface Modification of Polyethylene Terephthalate (PET) by Corona Discharge Plasma. J. Nucl. Phy. Mat. Sci. Rad. A. 2021, 8, 129-134.

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