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Polymers
Special Issues
Plasma and Ion Beam Process for Surface-Functionalized Polymer Materials
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Plasma and Ion Beam Process for Surface-Functionalized Polymer Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Networks".

Deadline for manuscript submissions: closed (15 November 2022) | Viewed by 4648

Special Issue Editor

Dr. Seunghun Lee

E-Mail Website
Guest Editor
Korea Institute of Materials Science, Changwon, Korea
Interests: Plasma source; surface treatment; plasma diagnostics; atmospheric pressure plasma; Plasma medicine

Special Issue Information

Dear Colleagues,

Surface-functionalized polymer materials have been applied to sensors, electronic parts, and antibacterial applications. Plasma and ion beam treatments are promising ways to fabricate surface-functionalized polymer materials. For example, surface-enhanced Raman spectroscopy sensors use polymer substrates, which have nanostructures fabricated by ion–polymer collision interactions. Flexible copper clad lamination utilizes plasma and ion beam processes to increase adhesion strength between copper and polymer film. Recently, copper adhesion with low-k materials such as liquid crystal polymer and fluorine-based polymer have been found to be required to reduce the signal loss of high frequency (> 28GHz) communication. In the era of the COVID-19 pandemic, polymer membranes with antibacterial coating became important consumer goods. The integration of these investigations in this Special Issue may rapidly provide the relevant knowledge for readers and researchers who are interested in the recent research progress of the plasma and ion beam processes of polymer materials, further inspiring brainstorming and the derivative inventive power of investigators.

Dr. Seunghun Lee
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plasma treatment
  • ion beam
  • nanostructure
  • molecular adhesion
  • sensor
  • FCCL
  • antibacterial

Published Papers (2 papers)

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Research

17 pages, 1864 KiB  
Article
Different Radial Modification Profiles Observed on APPJ-Treated Polypropylene Surfaces according to the Distance between Plasma Outlet and Target
by Fellype do Nascimento, Bruno Silva Leal, Antje Quade and Konstantin Georgiev Kostov
Polymers 2022, 14(21), 4524; https://doi.org/10.3390/polym14214524 - 26 Oct 2022
Cited by 3 | Viewed by 1325
Abstract
The plasma jet transfer technique relies on a conductive wire at floating potential, which, upon entering in contact with a primary discharge, is capable of igniting a small plasma plume at the distal end of a long flexible plastic tube. In this work, [...] Read more.
The plasma jet transfer technique relies on a conductive wire at floating potential, which, upon entering in contact with a primary discharge, is capable of igniting a small plasma plume at the distal end of a long flexible plastic tube. In this work, two different long tube configurations were employed for the surface modification of polypropylene (PP) samples using argon as the working gas. One of the jet configurations has a thin copper (Cu) wire, which was installed inside the long tube. In the other configuration, the floating electrode is a metallic mesh placed between two plastic tubes in a coaxial arrangement. In the first case, the tip of the Cu wire is in direct contact with the working gas at the plasma outlet, whereas, in the second, the inner plastic tube provides an additional dielectric barrier that prevents the conductor from being in contact with the gas. Water contact angle (WCA) measurements on treated PP samples revealed that different surface modification radial profiles are formed when the distance (d) between the plasma outlet and target is changed. Moreover, it was found that the highest WCA reduction does not always occur at the point where the plasma impinges the surface of the material, especially when the d value is small. Through X-ray photoelectron spectroscopy (XPS) analysis, it was confirmed that the WCA values are directly linked to the oxygen-functional groups formed on the PP surfaces after the plasma treatment. An analysis of the WCA measurements along the surface, as well as their temporal evolution, together with the XPS data, suggest that, when the treatment is performed at small d values, the plasma jet removes some functional groups at the point where the plasma hits the surface, thus leading to peculiar WCA profiles. Full article
(This article belongs to the Special Issue Plasma and Ion Beam Process for Surface-Functionalized Polymer Materials)
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9 pages, 2302 KiB  
Article
Sustainable Antibacterial and Antiviral High-Performance Copper-Coated Filter Produced via Ion Beam Treatment
by Sunghoon Jung, Jun-Young Yang, Donghwan Jang, Taeyoon Kim, Ki Ho Baek, Hyunkyung Yoon, Joo Young Park, Sang Kwon Kim, Jinhyuk Hong, Sungweon Ryoo, Ho Won Jang and Seunghun Lee
Polymers 2022, 14(5), 1007; https://doi.org/10.3390/polym14051007 - 2 Mar 2022
Cited by 5 | Viewed by 2957
Abstract
With the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), disease prevention has become incredibly important. Consequently, mask and air-purifier use has increased. The filter is the core component of these items. However, most filter materials lack antimicrobial properties. Copper is a [...] Read more.
With the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), disease prevention has become incredibly important. Consequently, mask and air-purifier use has increased. The filter is the core component of these items. However, most filter materials lack antimicrobial properties. Copper is a sustainable antimicrobial material. When copper is deposited onto the filter’s surface, the microorganisms that come into contact with it can be effectively inactivated. In this study, we used an oxygen ion beam with a controlled process temperature to treat filter surfaces with copper. This enabled a strong adhesion of at least 4 N/cm between the copper and the filter fibers without damaging them. Upon exposing the filter to bacteria (Staphylococcus aureus ATCC 6538, Klebsiella pneumoniae ATCC 4352, Escherichia coli ATCC 25922, and Pseudomonas aeruginosa ATCC 27853) for one hour, a >99.99% removal rate was attained; when the filter was exposed to SARS-CoV-2 virus for one hour, it inactivated more than 99%. These beneficial properties minimize the risk of secondary infections, which are significantly more likely to occur when a conventional filter is replaced or removed. Full article
(This article belongs to the Special Issue Plasma and Ion Beam Process for Surface-Functionalized Polymer Materials)
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