Tailored wettability of plasma polymers made of C–F, C–H, and N–H

Prysiazhnyi, Vadym; Kratochvíl, Jiří; Straňák, Vítězslav

doi:10.1002/ppap.201900076

Cited by 8 publications

(3 citation statements)

References 57 publications

(82 reference statements)

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“…The wettability of PTFE can also be tailored upon the sputter-deposition of the thin polymer films resembling PTFE. Prysiazhnyi et al [ 33 ] performed sputtering of the PTFE substrate using magnetized capacitively coupled RF plasma of discharge power 50 W and a frequency of 13.56 MHz operating at the pressure of 1.5 Pa. The treatment time was half an hour.…”

Section: Review Of Recent Papers On Surface Activation Of Polytetrmentioning

confidence: 99%

Recent Advances in Surface Activation of Polytetrafluoroethylene (PTFE) by Gaseous Plasma Treatments

Primc

2020

Polymers

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Fluorinated polymers are renowned for their chemical inertness and thus poor wettability and adhesion of various coatings. Apart from chemical methods employing somewhat toxic primers, gaseous plasma treatment is a popular method for the modification of surface properties. Different authors have used different plasmas, and the resultant surface finish spans between super-hydrophobic and super-hydrophilic character. Some authors also reported the hydrophobic recovery. The review of recent papers is presented and discussed. Correlations between plasma and/or discharge parameters and the surface finish are drawn and the most important conclusions are summarized. The concentration of oxygen in the surface film as probed by X-ray photoelectron spectroscopy is inversely dependent on the concentration of oxygen in gaseous plasma. The predominant mechanism leading to hydrophilic surface finish is bond scission by deep ultraviolet radiation rather than functionalization with reactive oxygen species.

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Section: Review Of Recent Papers On Surface Activation Of Polytetrmentioning

confidence: 99%

Recent Advances in Surface Activation of Polytetrafluoroethylene (PTFE) by Gaseous Plasma Treatments

Primc

2020

Polymers

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“…All elemental spectra were calibrated using the standard binding energy of carbon, which is equal to 292.0 eV (CF 2 ) according to the results of previous studies. ,− Tables and summarize the chemical compositions and positions of the sub-peaks corresponding to specific bonds of the ZnO–PPFC nanocomposite thin films fabricated at various ZnO concentrations in the hybrid targets. The best known PTFE consists of a quasicrystal structure with linear chains in which the molecular bonds of −[−CF 2 –CF 2 −] n - are highly ordered.…”

Section: Resultsmentioning

confidence: 99%

ZnO–Plasma Polymer Fluorocarbon Thin Films for Stable Battery Anodes and High-Output Triboelectric Nanogenerators

Song

Kim

Yong

et al. 2022

ACS Appl. Nano Mater.

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In this study, ZnO−plasma polymer fluorocarbon (PPFC) nanocomposite thin films were prepared by a mid-range frequency sputtering method using ZnO−polyfluoroethylene−carbon nanotube hybrid targets, and their optical, physical, and surface properties were investigated as functions of the ZnO concentration in the targets. The obtained films exhibited excellent visible light transmittance and hydrophobic characteristics, while their surface roughness and refractive index increased with increasing the ZnO concentration from 6.52 to 15.3 nm and from 1.45 to 1.55, respectively, due to the larger number of ZnO-related absorption states. In addition, the structures and compositions of the films were determined by X-ray diffraction (XRD), grazing incidence small-angle X-ray scattering (GISAXS), and X-ray photoelectron spectroscopy (XPS). It was found that mixed ZnO nanoparticles were well embedded into the PPFC matrix. Finally, we examined the potential applicability of the fabricated ZnO−PPFC nanocomposite thin films in various fields, such as batteries and triboelectric nanogenerators (TENGs). The TENG output voltage increased by approximately 15.8% from 28.05 V for commercial polytetrafluoroethylene (PTFE)-based generators to 32.48 V for the ZnO−PPFC nanocomposite film-based TENG. Furthermore, the ZnO−PPFC nanocomposite thin film demonstrated a stable performance as a battery anode material. While the output of a ZnO reference electrode decreased by approximately 74.5% after 100 cycles, the output of a ZnO−PPFC anode decreased by only 12.4% and remained stable afterward.

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“…Several attempts have been reported in the literature using DBD plasma to improve the wettability of polymeric surfaces, since it does not deteriorate and can modify the treated surface [ 17 , 23 , 25 , 26 , 27 ]. The authors justify that the increase in wettability in polymeric materials is directly associated with the incorporation of functional groups such as C–O, C=O, and O–C–O [ 11 , 28 , 29 , 30 , 31 ]. The incorporated functional groups were verified, by the authors, using the XPS or FTIR techniques, with the associated reduction of the peak of the C–C and C–H bonds [ 5 , 12 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma

et al. 2020

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In this work, the plasma was used in the dielectric barrier discharge (DBD) technique for modifying the high-density polyethylene (HDPE) surface. The treatments were performed via argon or oxygen, for 10 min, at a frequency of 820 Hz, voltage of 20 kV, 2 mm distance between electrodes, and atmospheric pressure. The efficiency of the plasma was determined through the triple Langmuir probe to check if it had enough energy to promote chemical changes on the material surface. Physicochemical changes were diagnosed through surface characterization techniques such as contact angle, attenuated total reflection to Fourier transform infrared spectroscopy (ATR-FTIR), X-ray excited photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). Plasma electronics temperature showed that it has enough energy to break or form chemical bonds on the material surface, impacting its wettability directly. The wettability test was performed before and after treatment through the sessile drop, using distilled water, glycerin, and dimethylformamide, to the profile of surface tensions by the Fowkes method, analyzing the contact angle variation. ATR-FTIR and XPS analyses showed that groups and bonds were altered or generated on the surface when compared with the untreated sample. The AFM showed a change in roughness, and this directly affected the increase of wettability.

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Tailored wettability of plasma polymers made of C–F, C–H, and N–H

Cited by 8 publications

References 57 publications

Recent Advances in Surface Activation of Polytetrafluoroethylene (PTFE) by Gaseous Plasma Treatments

Recent Advances in Surface Activation of Polytetrafluoroethylene (PTFE) by Gaseous Plasma Treatments

ZnO–Plasma Polymer Fluorocarbon Thin Films for Stable Battery Anodes and High-Output Triboelectric Nanogenerators

Study of High-Density Polyethylene (HDPE) Kinetics Modification Treated by Dielectric Barrier Discharge (DBD) Plasma

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