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Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide
In this work, multi-layered polyimide (PI) films were surface fluorinated at 328 K and 0.05 MPa using F(2)/N(2) mixture with 20% F(2) by volume, for a fluorination time of 0, 30 and 60 min, respectively. Then, they were subjected to discharge plasma as barrier dielectrics of surface dielectric barri...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403684/ https://www.ncbi.nlm.nih.gov/pubmed/30966640 http://dx.doi.org/10.3390/polym10060606 |
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author | Bian, Dongliang Wu, Yun |
author_facet | Bian, Dongliang Wu, Yun |
author_sort | Bian, Dongliang |
collection | PubMed |
description | In this work, multi-layered polyimide (PI) films were surface fluorinated at 328 K and 0.05 MPa using F(2)/N(2) mixture with 20% F(2) by volume, for a fluorination time of 0, 30 and 60 min, respectively. Then, they were subjected to discharge plasma as barrier dielectrics of surface dielectric barrier discharge (SDBD) at ambient atmospheric air. The dielectric lifetime of SDBD greatly extends after 60 min surface fluorination. In addition, optical emission spectroscopy (OES) results indicate that during the plasma processing, SDBD with fluorinated PI can obtain more stable plasma parameters, including gas temperature and electron temperature. Dielectric surface properties were further evaluated by infrared thermography, scanning electron microscope (SEM), and X-ray photoelectron spectroscopy (XPS). It is considered that both physical and chemical effects lead to the extension of dielectric lifetime. The physical effect is reflected in low surface temperature and increased surface roughness, while the chemical effect is reflected in the graft of fluorine groups. |
format | Online Article Text |
id | pubmed-6403684 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64036842019-04-02 Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide Bian, Dongliang Wu, Yun Polymers (Basel) Article In this work, multi-layered polyimide (PI) films were surface fluorinated at 328 K and 0.05 MPa using F(2)/N(2) mixture with 20% F(2) by volume, for a fluorination time of 0, 30 and 60 min, respectively. Then, they were subjected to discharge plasma as barrier dielectrics of surface dielectric barrier discharge (SDBD) at ambient atmospheric air. The dielectric lifetime of SDBD greatly extends after 60 min surface fluorination. In addition, optical emission spectroscopy (OES) results indicate that during the plasma processing, SDBD with fluorinated PI can obtain more stable plasma parameters, including gas temperature and electron temperature. Dielectric surface properties were further evaluated by infrared thermography, scanning electron microscope (SEM), and X-ray photoelectron spectroscopy (XPS). It is considered that both physical and chemical effects lead to the extension of dielectric lifetime. The physical effect is reflected in low surface temperature and increased surface roughness, while the chemical effect is reflected in the graft of fluorine groups. MDPI 2018-06-02 /pmc/articles/PMC6403684/ /pubmed/30966640 http://dx.doi.org/10.3390/polym10060606 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Bian, Dongliang Wu, Yun Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title | Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title_full | Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title_fullStr | Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title_full_unstemmed | Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title_short | Enduring and Stable Surface Dielectric Barrier Discharge (SDBD) Plasma Using Fluorinated Multi-Layered Polyimide |
title_sort | enduring and stable surface dielectric barrier discharge (sdbd) plasma using fluorinated multi-layered polyimide |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403684/ https://www.ncbi.nlm.nih.gov/pubmed/30966640 http://dx.doi.org/10.3390/polym10060606 |
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