Studies on cold plasma–polymer surface interaction by example of PP- and PET-films

Akishev, Yu. S.; Грушин, М. Е.; Dyatko, N. A.; Кочетов, И. В.; Napartovich, Anatoly P.; Трушкин, Н. И.; Đức, Trần Minh; Descours, Séverine

doi:10.1088/0022-3727/41/23/235203

Cited by 89 publications

(37 citation statements)

References 28 publications

(72 reference statements)

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“…The plasma treatment can lead to chemical etching by breaking bonds, chain scission and chemical degradation of the treated polymer or it can result in physical etching by physically removing low molecular fragments. While chemical etching is promoted by radicals in plasma discharges, physical etching occurs under strong bombardment by energetic particles such as electrons and ions [25,[30][31][32]. The etching effect of plasma is already being harnessed for surface functionalization and cleaning purposes [20], but this study also suggests that the etching effect of plasma also plays an important role in controlling the release kinetics of active compounds from an active packaging material.…”

Section: Surface Characteristicsmentioning

confidence: 83%

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

Pankaj¹,

Bueno-Ferrer²,

Misra³

et al. 2014

j renew mater

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ABSTRACT:The effects of dielectric barrier discharge plasma treatment on zein film containing thymol as an active ingredient were evaluated. The plasma discharge was optically characterized to identify the reactive species. A significant increase in the film roughness (p < 0.05) was observed due to the etching effect of DBD plasma, which was correlated with the increase in the diffusion rate of thymol in the food simulant. The diffusion of thymol from the zein film was measured in aqueous solution. The kinetics of thymol release followed the Fick's law of diffusion as shown by the high correlation coefficients between experimental and theoretical data. No significant change (p > 0.05) was observed for the thermal properties of the antimicrobial films after DBD plasma treatment.

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Section: Surface Characteristicsmentioning

confidence: 83%

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

Pankaj¹,

Bueno-Ferrer²,

Misra³

et al. 2014

j renew mater

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“…The effect was noticeably stronger for the PP surface. This was explained by different chemical compositions of these polymers [75]. The effect of low-pressure O 2 plasma treatments on the surface-free energy and morphology of PP films was studied in [76].…”

Section: Oxygen In Plasma Gas and The Surface Wettability Of Modifiedmentioning

confidence: 99%

Wettability and Other Surface Properties of Modified Polymers

Kasálková¹,

Slepička²,

Kolská³

et al. 2015

Wetting and Wettability

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Surface wettability is one of the crucial characteristics for determining of a material's use in specific application. Determination of wettability is based on the measurement of the material surface contact angle. Contact angle is the main parameter that characterizes the drop shape on the solid surface and is also one of the directly measurable properties of the phase interface. In this chapter, the wettability and its related properties of pristine and modified polymer foils will be described. The wettability depends on surface roughness and chemical composition. Changes of these parameters can adjust the values of contact angle and, therefore, wettability. In the case of pristine polymer materials, their wettability is unsuitable for a wide range of applications (such as tissue engineering, printing, and coating). Polymer surfaces can easily be modified by, e.g., plasma discharge, whereas the bulk properties remain unchanged. This modification leads to oxidation of the treated layer and creation of new chemical groups that mainly contain oxygen. Immediately after plasma treatment, the values of the contact angles of the modified polymer significantly decrease.In the case of a specific polymer, the strongly hydrophilic surface is created and leads to total spreading of the water drop. Wettability is strongly dependent on time from modification.Wettability plays a key role, e.g., in the development of biomaterials in tissue engineering and regenerative medicine. Biocompatibility tests of the cell adhesion, proliferation and viability are performed in an aqueous medium, and it is necessary to control the surface wettability. Various cell types have different requirements on surface properties, but while maintaining suitable parameters, the optimal value of © 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.water contact angle for cell adhesion is in the interval of 50-70°. In the case of polymers, which have usually higher values of contact angles, the decrease in water contact angle and adjustment of the surface may be accomplished by introducing selected chemical groups (by plasma treatment), chemical compounds (by grafting, i.e., chemical bath deposition), or nanoparticles. In the case of grafting of polyethylene glycol (PEG) on the plasma activated high-density polyethylene was under "properly" selected conditions of modification (molecular weight of PEG, concentration of PEG in solution) prepared layers that positively influenced the cell adhesion. In addition, low concentration of gold nanoparticles increased the number of adhered cells without decreasing cell viability.Whether the surface of the polymeric substrate is attractive for the adhesion and proliferation of cells is determined not only by wettability but also by a range of other surface properties...

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“…Therefore, it can be considered as an environmentally benign technology. Moreover, it is a versatile technique that only affects the first few atomic layers at the surface without affecting the bulk properties [3,4]. Plasmas can induce topographical modifications, [5] change the chemical composition [3] of a surface and can also be used for cleaning and deposition purposes.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of polyethylene in an argon atmospheric pressure plasma jet

Deynse

Cools

Leys

et al. 2015

Surface and Coatings Technology

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The surface properties of polyethylene can successfully be altered using argon plasmas. In this work, the surface modification of low density polyethylene (LDPE) using an argon atmospheric pressure plasma jet (APPJ) is profoundly investigated. The surface modification is examined using different analysing techniques namely, water contact angle (WCA) measurements for the wettability and X-ray photoelectron spectroscopy (XPS) for the chemical composition. Particular attention is paid to the treatment distance between the plasma jet capillary and the LDPE foil and the applied treatment time. At treatment distances between 5 and 15 mm, the WCA can be reduced with more than 70% within a treatment time of a few ms. XPS measurements reveal that this is due to the incorporation of oxygen containing groups and especially the increased implementation of the O-C=O group has a big influence. At treatment distances above 15 mm, the wettability decreases with increasing treatment distance. The wettability can however be enhanced by increasing the treatment time. Ageing considerations show that the loss in treatment efficiency is restricted to only 25%, meaning that even after 14 days of ageing the WCA reduction upon plasma treatment is still more than 40%. Based on the above mentioned results, the most appropriate parameters can thus be selected to provide an efficient plasma treatment of LDPE using the argon APPJ.3

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Studies on cold plasma–polymer surface interaction by example of PP- and PET-films

Cited by 89 publications

References 28 publications

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

Wettability and Other Surface Properties of Modified Polymers

Surface modification of polyethylene in an argon atmospheric pressure plasma jet

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