Comparative study of continuous plasma surface treatment of large-scale PTFE foil by air, argon and H2/N2 DCSBD plasma

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F25%3A00642939" target="_blank" >RIV/68081731:_____/25:00642939 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/25:00143045

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2468023025023156" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468023025023156</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.surfin.2025.108064" target="_blank" >10.1016/j.surfin.2025.108064</a>

Result language

angličtina

Original language name

Comparative study of continuous plasma surface treatment of large-scale PTFE foil by air, argon and H2/N2 DCSBD plasma

Original language description

The large-scale flexible Polytetrafluoroethylene (Teflon, PTFE) foils were treated by Diffuse Coplanar Surface Barrier Discharge (DCSBD) plasma in concavely curved configuration by three types of processing gases, in particular ambient air, argon and the mixture of H2/N2 (forming gas, 5 % volume content of H2). To provide a complete study of plasma-treated PTFE surface, we investigated the wettability improvements with ageing effect, surface free energy and surface chemistry by XPS technique, morphology changes by AFM method and overall adhesion properties studied by 90 degrees peel off tape test. The results show that DCSBD plasma is capable of effective hydrophilization even at plasma treatment time around 10 s. The XPS results showed that H2/N2 and argon plasma treatment effectively perform defluorination of the PTFE surface and initiate the formation of surface polar oxygen-containing functional groups, while air plasma treatment results in the largest relative increase of surface roughness of the plasma-treated PTFE surface. The analysis of surface adhesion indicates that there is a synergistic interplay between chemical and morphological changes since there is no significant overperformance of one type of processing gas and therefore, simple treatment by cheap and available gases like air and forming gas can effectively modify the PTFE surface without rapid hydrophobic recovery.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/LM2023039" target="_blank" >LM2023039: R&D centre for plasma and nanotechnology surface modifications</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Surfaces and Interfaces

ISSN

2468-0230

e-ISSN

2468-0230

Volume of the periodical

78

Issue of the periodical within the volume

1 December

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

12

Pages from-to

108064

UT code for WoS article

001623091100003

EID of the result in the Scopus database

2-s2.0-105022086682