PTFE surface modification by Ar plasma and its characterization

Kolská, Zdeňka; Řezníčková, Alena; Hnatowicz, V.; Švorčı́k, Václav

doi:10.1016/j.vacuum.2011.07.015

Cited by 54 publications

(48 citation statements)

References 17 publications

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“…The most frequently used treatments are, e.g. : flame, corona discharge, plasma, photons, electrons, ion beam or X-rays [2,3,12,13]. These methods are used to achieve changes of polymer such as formation of special functional groups at the surface, increase of surface energy, change of wettability, improvement [3,8,11,13,14].…”

Section: Introductionmentioning

confidence: 99%

“…This kind of surface modification has many advantages, including modification of just the outermost atomic layers of the substrate, reduction of thermal degradation and modification without affecting the bulk properties of the polymer [18][19][20][21]. Plasma surface modification is used to create new chemical groups on their surface, branching and cross linking of macromolecules and formation of low molecular weight oxidized structures [2,11,12,15,19,22]. Appearance of polar groups on the polymer surface leads to a change in wetting behavior, thus, strengthening the hydrophilicity of treated materials [23].…”

Section: Introductionmentioning

confidence: 99%

“…However, the surface roughness is also affected by the plasma treatment that can also change its wettability [20,24]. Surface properties of plasma treated polymers depend on, e.g., gases composition, exposure time, frequency and plasma power [8,12,13]. Polymers are often modified using noble gas (He, Ne, and Ar) or reactive gas (O 2 ) plasma [25,26].…”

Section: Introductionmentioning

confidence: 99%

“…The first one is the reorientation of the polar groups into the bulk polymer and the second is the mobility of small polymer chain segments into the matrix [10]. Thus, the results of these processes are a decrease in surface energy and a significant decrease of surface wettability [8,10,12,13,24].…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned, polymers are characterized by low surface energy and poor adhesive properties. Therefore, to ensure good adhesion between polymer and metal, the surface of polymer must be activated by, e.g., plasma treatment [10,12,13,15]. Deposition of metallic thin film on polymer substrates can be performed using various physical and chemical processes [13].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Influence of plasma treatment on wettability and scratch resistance of Ag-coated polymer substrates

Wojcieszak

Poniedziałek

Mazur

et al. 2016

Materials Science-Poland

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Rapid progress in thin-film coatings based on metals, which can be deposited on polymers, has been recently observed. In this work discussion on the properties of modified polymers and silver thin films deposited on polytetrafluoroethylene (PTFE) and polycarbonate (PC) substrates has been presented. Surface of these polymer substrates were exposed to argon plasma discharge. Additionally, silver thin films were deposited on their surface by electron beam evaporation method. The surfaces of the modified polymers were studied by different methods, i.e. topography, wettability and scratch resistance measurements were performed. The ageing effect of treated substrates was also discussed. It was shown that plasma modification of PTFE and PC substrates increased wettability of their surfaces. The value of water contact angle decreased of about 40 % and 25 % for PTFE and PC surface, respectively. The change of hydrophobic to hydrophilic properties was observed. Plasma modification of substrates improved adhesion between silver coating and polymer substrates. However, it did not influence wettability of Ag coating.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of plasma treatment on wettability and scratch resistance of Ag-coated polymer substrates

Wojcieszak

Poniedziałek

Mazur

et al. 2016

Materials Science-Poland

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show abstract

Simple approach for the plasma treatment of polymeric membranes and investigation of the aging effect

Marques

Silveira

Leite

et al. 2021

J of Applied Polymer Sci

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The modification of the surface characteristics after treatment with plasma in polymeric materials, such as the aging phenomenon, calls the attention of research in the area of nonthermal plasma technology. In this work, a direct treatment with dielectric-barrier discharge plasma was used on the surfaces of ultrafiltration membranes. The measurements of the contact angle with water, attenuated total reflectance accessory, zeta potential, atomic force microscopy and scanning electron microscopy-MEV were performed on the surfaces to verify changes after plasma treatment and to understand the occurrence and timing of the plasma aging effect. In the analysis of the membrane performance, hydraulic permeation and protein retention tests were performed. The results showed an improvement in wettability and hydrophilic properties in the post-treated membranes. The study of reversibility/aging of the postplasma surface is important for research that deals with the modification of polymeric membranes. Changes in surface morphology, topography and wettability of the membranes were observed up to seven days after treatment, with a tendency to return to the initial characteristics of the membranes.

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Pressure sensitive adhesive based on PFBA monomer for ePTFE bonding

Yan

et al. 2022

J of Applied Polymer Sci

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Expanded polytetrafluoroethylene (ePTFE) has superior properties such as compression creep resistance and compression resilience, but it is difficult to bond with other materials due to its low surface energy, high crystallinity and highly symmetrical structure. In this paper, a new type of pressure-sensitive adhesive is prepared from butyl acrylate, glycidyl methacrylate and unique pentafluorobenzyl acrylate, in which pentafluorophenyl group is introduced to provide steric hindrance to avoid clustering and increase the affinity with ePTFE simultaneously. The thermal stability of this pressure-sensitive adhesive is approximately 250 C; the contact angle can reach 110.7 ; the peel strength can reach 19 N/25 mm, comparable to literature values. The shear holding power at room temperature can be maintained over 100 h, and increases with the extension of immersion time in water, 5 times that of the literature report. This new adhesive can aptly solve the adhesion challenges with the use of ePTFE in complex environment.

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PTFE surface modification by Ar plasma and its characterization

Cited by 54 publications

References 17 publications

Influence of plasma treatment on wettability and scratch resistance of Ag-coated polymer substrates

Influence of plasma treatment on wettability and scratch resistance of Ag-coated polymer substrates

Simple approach for the plasma treatment of polymeric membranes and investigation of the aging effect

Pressure sensitive adhesive based on PFBA monomer for ePTFE bonding

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