Hydrocarbon barrier performance of plasma-surface-modified polyethylene

Lin, Yuyi; Yasuda, H.

doi:10.1002/(sici)1097-4628(19960620)60:12<2227::aid-app21>3.0.co;2-2

Cited by 14 publications

(5 citation statements)

References 2 publications

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“…Plasma polymerization is nowadays considered as a promising and versatile technique allowing to deposit plasma polymer films with functional properties without affecting the intrinsic properties of the substrates. Previous works pointed out the fact that plasma‐induced polymerization can be applied for a wide range of applications such as fuel cells,1, 2 biomaterials,3, 4 optical5 and electronic devices,6 adhesion promoters,7–9 sensors,10 or protective coatings 11, 12. It is now well‐established that plasma polymers are different from those fabricated by conventional wet synthesis methods.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Plasma Deposition Process: A Versatile Tool for the Design of Tunable Siloxanes‐Based Plasma Polymer Films

Petersen

Bechara²,

Bardon³

et al. 2011

Plasma Processes & Polymers

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This paper aims at describing the synthesis of plasma polymer films by means of atmospheric filamentary plasma dielectric barrier discharge. This work highlights the fact that molecular structures of siloxane based plasma films can be tuned according to the so‐called Yasuda's parameter, which corresponds to the W/F ratios (W = power discharge; F = Monomer flow rate). Indeed, we showed that the plasma films exhibit a polydimethylsiloxane (PDMS) structure when W/F was low (i.e. when low plasma energy is applied), whereas SiOx structures were rather obtained when W/F is high (i.e. high plasma energy). These results were validated thanks to a wide set of analytical tools allowing to identify two domains where molecular structures of the plasma films swiftly progress from PDMS to SiOx according to W/F ratios.

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Section: Introductionmentioning

confidence: 99%

Atmospheric Plasma Deposition Process: A Versatile Tool for the Design of Tunable Siloxanes‐Based Plasma Polymer Films

Petersen

Bechara²,

Bardon³

et al. 2011

Plasma Processes & Polymers

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“…Due to the presence of hydrogen and acetylene in CF 4 plasma, biradicals are formed as the main source of free radicals. , The presence of long-lived radicals on the film surface allows reacting the film with atmospheric oxygen, when the film is removed from the reactor chamber. The increase of oxygen concentration for CF 4 /H 2 and CF 4 /C 2 H 2 plasma treatments compared to CF 4 plasma treatment suggests that these films have a greater number of long-lived radicals on the surface (Table ) and, as a consequence, a larger amount of oxygen-containing moieties was formed on the film surface (Figure c and d).…”

Section: Resultsmentioning

confidence: 99%

Improvement of Water Barrier Properties of Poly(ethylene-co-vinyl alcohol) Films by Hydrophobic Plasma Surface Treatments

et al. 2012

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Poly(ethylene-co-vinyl alcohol) (EVOH) films with two different ethylene contents (29 and 44 mol %) have been treated by hydrophobic plasma (CF4, tetramethylsilane (TMS), CF4/H2, and CF4/C2H2). Conditions of the cold plasma treatment were optimized by the water contact angle measurements as a function of the different plasma parameters (plasma power, gas flow, and treatment time). Chemical changes of the film surface were characterized by X-ray photoelectron spectroscopy. The obtained results revealed the presence of fluorine containing functional groups such as CF, CF2, and CF3 in the case of CF4, CF4/H2, and CF4/C2H2 plasma treatment and the presence of SiO x C y compounds after TMS treatment. The morphology of the plasma treated EVOH films was examined by atomic force microscopy, which indicated an increase of the film roughness after treatment. Negligible changes of thermal properties of the modified EVOH films were observed by means of the temperature modulated differential scanning calorimetry. The barrier properties of films were characterized by water permeability measurements. It was found that the hydrophobicity was significantly improved after plasma treatment and for some treated films the water permeability was decreased up to 28%.

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“…However, it is a common phenomenon that oxygen is incorporated on polymer surfaces after non-oxygen-plasma treatment, free radicals that are created on a polymer surface during o plasma treatment will react with oxygen when the surface is exposed to the atmosphere. Consequently, several hydrophilic groups on the polysulfone surface were introduced [19][20] .…”

Section: Resultsmentioning

confidence: 99%

Surface Modification of Polymeric Materials by Plasma Treatment

et al. 2002

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Low-temperature plasma treatment has been used in the last years as a useful tool to modify the surface properties of different materials, in special of polymers. In the present work low temperature plasma was used to treat the surface of asymmetric porous substrates of polysulfone (PSf) membranes. The main purpose of this work was to study the influence of the exposure time and the power supplied to argon plasma on the permeability properties of the membranes. Three rf power levels, respectively 5, 10 and 15 W were used. Treatment time ranged from 1 to 50 min. Reduction of single gas permeability was observed with Ar plasma treatments at low energy bombardment (5 W) and short exposure time (20 min). Higher power and/or higher plasma exposition time causes a degradation process begins. The chemical and structural characterization of the membranes before and after the surface modification was done by AFM, SEM and XPS.

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Hydrocarbon barrier performance of plasma-surface-modified polyethylene

Cited by 14 publications

References 2 publications

Atmospheric Plasma Deposition Process: A Versatile Tool for the Design of Tunable Siloxanes‐Based Plasma Polymer Films

Atmospheric Plasma Deposition Process: A Versatile Tool for the Design of Tunable Siloxanes‐Based Plasma Polymer Films

Improvement of Water Barrier Properties of Poly(ethylene-co-vinyl alcohol) Films by Hydrophobic Plasma Surface Treatments

Surface Modification of Polymeric Materials by Plasma Treatment

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