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Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment

Polytetrafluoroethylene (PTFE) is a potential candidate for the fabrication of flexible electronics devices and electronics with applications in various extreme environments, mainly due to its outstanding chemical and physical properties. However, to date, the utilization of PTFE in printing trials...

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Autores principales: Olariu, Marius Andrei, Herrero, Rakel, Astanei, Dragoș George, Jofré, Lisandro, Morentin, Javier, Filip, Tudor Alexandru, Burlica, Radu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458421/
https://www.ncbi.nlm.nih.gov/pubmed/37631405
http://dx.doi.org/10.3390/polym15163348
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author Olariu, Marius Andrei
Herrero, Rakel
Astanei, Dragoș George
Jofré, Lisandro
Morentin, Javier
Filip, Tudor Alexandru
Burlica, Radu
author_facet Olariu, Marius Andrei
Herrero, Rakel
Astanei, Dragoș George
Jofré, Lisandro
Morentin, Javier
Filip, Tudor Alexandru
Burlica, Radu
author_sort Olariu, Marius Andrei
collection PubMed
description Polytetrafluoroethylene (PTFE) is a potential candidate for the fabrication of flexible electronics devices and electronics with applications in various extreme environments, mainly due to its outstanding chemical and physical properties. However, to date, the utilization of PTFE in printing trials has been limited due to the material’s low surface tension and wettability, which do not ensure good adhesion of the printing ink at the level of the substrate. Within this paper, successful printing of PTFE is realized after pre-treating the surface of the substrate with the help of dielectric barrier discharge non-thermal plasma. The efficiency of the pre-treatment is demonstrated with respect to both silver- and carbon-based inks that are commercially available, and finally, the long-lasting pre-treatment effect is demonstrated for periods of time spanning from minutes to days. The experimental results are practically paving the way toward large-scale utilization of PTFE as substrate in fabricating printed electronics in harsh working environments. After 3 s of plasma treatment of the foil, the WCA decreased from approximately 103° to approximately 70°. The resolution of the printed lines of carbon ink was not time dependent and was unmodified, even if the printing was realized within 1 min from the time of applying the pre-treatment or 10 days later. The evaluation of the surface tension (σ) measured with Arcotest Ink Pink showed an increase in σ up to 40 < σ < 42 mN/m for treated Teflon foil and from σ < 30 mN/m corresponding to the untreated substrate. The difference in resolution was distinguishable when increasing the width of the printed lines from 500 μm to 750 μm, but when increasing the width from 750 μm to 1000 μm, the difference was minimal.
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spelling pubmed-104584212023-08-27 Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment Olariu, Marius Andrei Herrero, Rakel Astanei, Dragoș George Jofré, Lisandro Morentin, Javier Filip, Tudor Alexandru Burlica, Radu Polymers (Basel) Article Polytetrafluoroethylene (PTFE) is a potential candidate for the fabrication of flexible electronics devices and electronics with applications in various extreme environments, mainly due to its outstanding chemical and physical properties. However, to date, the utilization of PTFE in printing trials has been limited due to the material’s low surface tension and wettability, which do not ensure good adhesion of the printing ink at the level of the substrate. Within this paper, successful printing of PTFE is realized after pre-treating the surface of the substrate with the help of dielectric barrier discharge non-thermal plasma. The efficiency of the pre-treatment is demonstrated with respect to both silver- and carbon-based inks that are commercially available, and finally, the long-lasting pre-treatment effect is demonstrated for periods of time spanning from minutes to days. The experimental results are practically paving the way toward large-scale utilization of PTFE as substrate in fabricating printed electronics in harsh working environments. After 3 s of plasma treatment of the foil, the WCA decreased from approximately 103° to approximately 70°. The resolution of the printed lines of carbon ink was not time dependent and was unmodified, even if the printing was realized within 1 min from the time of applying the pre-treatment or 10 days later. The evaluation of the surface tension (σ) measured with Arcotest Ink Pink showed an increase in σ up to 40 < σ < 42 mN/m for treated Teflon foil and from σ < 30 mN/m corresponding to the untreated substrate. The difference in resolution was distinguishable when increasing the width of the printed lines from 500 μm to 750 μm, but when increasing the width from 750 μm to 1000 μm, the difference was minimal. MDPI 2023-08-09 /pmc/articles/PMC10458421/ /pubmed/37631405 http://dx.doi.org/10.3390/polym15163348 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Olariu, Marius Andrei
Herrero, Rakel
Astanei, Dragoș George
Jofré, Lisandro
Morentin, Javier
Filip, Tudor Alexandru
Burlica, Radu
Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title_full Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title_fullStr Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title_full_unstemmed Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title_short Improving Printability of Polytetrafluoroethylene (PTFE) with the Help of Plasma Pre-Treatment
title_sort improving printability of polytetrafluoroethylene (ptfe) with the help of plasma pre-treatment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10458421/
https://www.ncbi.nlm.nih.gov/pubmed/37631405
http://dx.doi.org/10.3390/polym15163348
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