Surface treatment of polymer films by a non equilibrium plasma

Aréfï, F.; Montazer-Rahmati, P.; André, V.; Amouroux, J.

doi:10.1002/app.1990.070460004

Cited by 15 publications

(4 citation statements)

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“…2,3 The rotation of the reactor at various angular velocities is assured by a digitally speed-controlled electric engine transmission system. 12,13 PE and S samples were submitted, respectively, to 13 and 16 different plasma treatments (Table I and II) to investigate the influence of external plasma parameters (power, treatment time, and pressure) on the relative atomic composition of the samples.…”

Section: Ds Plasma Treatmentmentioning

confidence: 99%

“…It has been demonstrated that efficient surface-modification reactions can be carried out even on inert polymer surfaces, such as Teflon and polypropylene. [1][2][3][4][5][6][7][8][9][10][11][12][13] Natural polymer-and thermoplastic-based composites represent a very attractive approach to create products with properties that combine the desired characteristics from each constituent component. 14,15 Characteristics like biodegradability, advanced mechanical properties, etc.…”

Section: Introductionmentioning

confidence: 99%

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Functionalization of sisal fibers and high‐density polyethylene by cold plasma treatment

Martin

Manolache

Dénès

et al. 2002

J of Applied Polymer Sci

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ABSTRACT:Chopped sisal fibers and finely powdered high-density polyethylene were surface functionalized using dichlorosilane (DS) under radio frequency (RF)-plasma conditions and characterized by electron spectroscopy for chemical analysis (ESCA) and fluorescence labeling techniques. A high-capacity (10 L), rotating, 13.56 MHz, electrodeless plasma installation, specially designed to allow the uniform surface modification of powdery and particulate matter of irregular shape, was used. A three-factor fractional experimental design was employed to evaluate the effect of RF-power, pressure, and reaction time on the ESCA-based relative atomic composition of plasmatreated samples. It was demonstrated that OSiH x Cl y functionalities are present on plasma-exposed surfaces and these functionalization reactions can be controlled by selecting proper plasma parameters.

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Section: Ds Plasma Treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Functionalization of sisal fibers and high‐density polyethylene by cold plasma treatment

Martin

Manolache

Dénès

et al. 2002

J of Applied Polymer Sci

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“…As a successful alternative, plasma-enhanced chemical vapor deposition (PECVD) has extensively been used for depositing fluorocarbon polymers on various substrates. − The starting components include both monomer- and non-monomer-type fluorocarbon derivatives. It has been shown that these approaches performed mainly by using continuous-wave (CW) PECV techniques resulted in macromolecular layers − with a stoichiometry where the F/C ratios were usually significantly lower than 2. , This clearly reflects the presence of unsaturation, trapped free radicals, and the existence of CF functionalities in the structures of plasma-generated macromolecular layers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Teflon-like Thin Layers under Perfluoro-1-butanesulfonyl Fluoride/Methane Radio Frequency Plasma Environments

1999

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Teflon-like thin layers were deposited on various substrate surfaces from perfluoro-1-butanesulfonyl fluoride/methane radio frequency pulsed plasma environments. The deposited films were characterized using attenuated total reflectance Fourier transform infrared spectroscopy, electron spectroscopy for chemical analysis, differential thermal analysis/thermogravimetric analysis (DTA/TG), and atomic force microscopy techniques. It has been demonstrated that the presence of methane is crucial for the deposition of fluorinated structures due to the simultaneously developed and fluorine atoms controlled competitive etching and deposition processes. It has been shown that plasma films with the highest fluorine concentrations can be generated under low duty cycle and high methane partial pressure conditions. DTA/TG data indicate that the Teflon-like layers have a fairly high thermal stability.

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“…We used n-pentane, toluene, tetrachloroethylene, dimethyl sulfoxide, and mixtures of n-pentane and methanol as test solvents. The polarity of polyolefin surfaces is increased on exposure to SOF2, SOC12, CC14, 02, S02 and NH3 plasmas (see for example, [1][2][3][4]). We used CF4 and SF6 plasmas for fluorination.…”

Section: Introductionmentioning

confidence: 99%

Barrier properties of plasma-modified polypropylene and polyethyleneterephthalate

Friedrich

Wigant

Unger

et al. 1995

Journal of Adhesion Science and Technology

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Plasma treatment changes the solvent absorption and permeation as well as the swelling properties of polymers. Enchanced solvent absorption and swelling are effects of an improved solvent compatibility. The plasma introduces a large number of different groups at the polymer surface depending on the nature of the plasma. Fluorine-containing plasmas can replace hydrogen atoms of the polymer molecule with fluorine atoms. Moreover, fluorine-containing plasma polymer layers can be formed. All these processes reduce the resulting surface free energy, reduce the diffusion length of solvent molecules, and produce a barrier layer. We have studied the formation of solvent barriers by plasma fluorination and by crosslinking by ultraviolet (UV) radiation. Thin foils of polypropylene (PP) and polyethyleneterephthalate (PET) were used as substrates. CF4, SF6, and SOF2 were applied as sources of fluorine atoms. Hexafluoropropene, tetrafluorethylene, and perfluorohexylethylene form plasma polymer layers on the polymer substrates. Test solvents were n-pentane, tetrachloroethylene, dimethylsulfoxide, and mixtures of n-pentane and methanol. The permeation rate of solvents through plasma-modified polymers was measured gravimetrically. Mass spectrometry was applied to analyze the permeating components of the solvent mixtures. Fluorination of surface layers by plasma-chemical (CF4, SF6) means considerably reduces the permeation rate of PP (95% barrier effect) and PET (100%). The preferred permeation of one component of the pentane/methanol mixture is influenced by the polarity of plasma-introduced groups at the polymer surface.

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Surface treatment of polymer films by a non equilibrium plasma

Cited by 15 publications

References 0 publications

Functionalization of sisal fibers and high‐density polyethylene by cold plasma treatment

Functionalization of sisal fibers and high‐density polyethylene by cold plasma treatment

Synthesis of Teflon-like Thin Layers under Perfluoro-1-butanesulfonyl Fluoride/Methane Radio Frequency Plasma Environments

Barrier properties of plasma-modified polypropylene and polyethyleneterephthalate

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