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Effect of H2S Plasma Treatment on the Surface Modification of a Polyethylene Terephthalate Surface

Department of surface engineering, Jozef Stefan Institute, Jamova 39, Ljubljana 1000, Slovenia
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Academic Editor: Jonathan Phillips
Materials 2016, 9(2), 95; https://doi.org/10.3390/ma9020095
Received: 18 January 2016 / Revised: 27 January 2016 / Accepted: 1 February 2016 / Published: 5 February 2016
(This article belongs to the Section Biomaterials)
H2S plasma created by an electrode-less radio-frequency discharge was used to modify the surface properties of the polymer polyethylene terephthalate. X-ray photoelectron spectroscopy, secondary ion mass spectrometry and atomic force microscopy were used to determine the evolution of the surface functionalities and morphology. A very thin film of chemically bonded sulfur formed on the surface within the first 10 s of treatment, whereas treatment for more than 20 s caused deposition of higher quantities of unbonded sulfur. The sulfur concentration reached a maximum of between 40 and 80 s of plasma treatment; at longer treatment times, the unbonded sulfur vanished, indicating instability of the deposited sulfur layer. Large differences in the surface morphology were observed. View Full-Text
Keywords: hydrogen sulfide (H2S); plasma treatment; polymer; polyethylene terephthalate (PET); surface modification hydrogen sulfide (H2S); plasma treatment; polymer; polyethylene terephthalate (PET); surface modification
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Vesel, A.; Kovac, J.; Primc, G.; Junkar, I.; Mozetic, M. Effect of H2S Plasma Treatment on the Surface Modification of a Polyethylene Terephthalate Surface. Materials 2016, 9, 95.

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