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Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres
Polymeric dielectrics are employed extensively in the power transmission industry, thanks to their excellent properties; however, under normal operating conditions these materials tend to degrade and fail. In this study, samples of low-density polyethylene, polypropylene, polymethyl methacrylate, an...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836313/ https://www.ncbi.nlm.nih.gov/pubmed/31658775 http://dx.doi.org/10.3390/polym11101646 |
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author | Leon-Garzon, Andres R. Dotelli, Giovanni Tommasini, Matteo Bianchi, Claudia L. Pirola, Carlo Villa, Andrea Lucotti, Andrea Sacchi, Benedetta Barbieri, Luca |
author_facet | Leon-Garzon, Andres R. Dotelli, Giovanni Tommasini, Matteo Bianchi, Claudia L. Pirola, Carlo Villa, Andrea Lucotti, Andrea Sacchi, Benedetta Barbieri, Luca |
author_sort | Leon-Garzon, Andres R. |
collection | PubMed |
description | Polymeric dielectrics are employed extensively in the power transmission industry, thanks to their excellent properties; however, under normal operating conditions these materials tend to degrade and fail. In this study, samples of low-density polyethylene, polypropylene, polymethyl methacrylate, and polytetrafluorethylene were subjected to corona discharges under nitrogen and air atmospheres. The discharges introduced structural modifications over the polymer surface. From a chemical perspective, the alterations are analogous among the non-fluorinated polymers (i.e., polyethylene (PE), polypropylene (PP), and polymethyl methacrylate (PMMA)). A simulation of the corona discharge allowed the identification of highly reactive species in the proximity of the surface. The results are consistent with the degradation of insulating polymers in high-voltage applications due to internal partial discharges that ultimately lead to the breakdown of the material. |
format | Online Article Text |
id | pubmed-6836313 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68363132019-11-21 Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres Leon-Garzon, Andres R. Dotelli, Giovanni Tommasini, Matteo Bianchi, Claudia L. Pirola, Carlo Villa, Andrea Lucotti, Andrea Sacchi, Benedetta Barbieri, Luca Polymers (Basel) Article Polymeric dielectrics are employed extensively in the power transmission industry, thanks to their excellent properties; however, under normal operating conditions these materials tend to degrade and fail. In this study, samples of low-density polyethylene, polypropylene, polymethyl methacrylate, and polytetrafluorethylene were subjected to corona discharges under nitrogen and air atmospheres. The discharges introduced structural modifications over the polymer surface. From a chemical perspective, the alterations are analogous among the non-fluorinated polymers (i.e., polyethylene (PE), polypropylene (PP), and polymethyl methacrylate (PMMA)). A simulation of the corona discharge allowed the identification of highly reactive species in the proximity of the surface. The results are consistent with the degradation of insulating polymers in high-voltage applications due to internal partial discharges that ultimately lead to the breakdown of the material. MDPI 2019-10-10 /pmc/articles/PMC6836313/ /pubmed/31658775 http://dx.doi.org/10.3390/polym11101646 Text en © 2019 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 Leon-Garzon, Andres R. Dotelli, Giovanni Tommasini, Matteo Bianchi, Claudia L. Pirola, Carlo Villa, Andrea Lucotti, Andrea Sacchi, Benedetta Barbieri, Luca Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title | Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title_full | Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title_fullStr | Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title_full_unstemmed | Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title_short | Experimental Characterization of Polymer Surfaces Subject to Corona Discharges in Controlled Atmospheres |
title_sort | experimental characterization of polymer surfaces subject to corona discharges in controlled atmospheres |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6836313/ https://www.ncbi.nlm.nih.gov/pubmed/31658775 http://dx.doi.org/10.3390/polym11101646 |
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