Surface Modification of Polyethylene Film by Atmospheric Pressure Glow Discharge Liquid Deposition Polymerization

Xiao, Jianfeng; Rui, Yan Nian; Chen, Guo Qiang

doi:10.4028/www.scientific.net/kem.464.725

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…It is confirmed that the PE bulk property was not damaged after DBD plasma treatment. After the monomers, i.e., ethanol and acrylic acid, were used to treat PE, as Figure 5 shows, the new peaks at 3415 cm −1 and 1620 cm −1 , which were assigned to -OH stretching and bending vibration [44] and the obvious peak at 1720 cm −1 for C=O stretching vibration in –COOH [44], were observed. For the allylamine modified sample, new peaks for the -NH stretching vibration were visible around 3367 cm −1 , 3295 cm −1 , 1633 cm −1 , and C-N at 1337 cm −1 [45].…”

Section: Resultsmentioning

confidence: 99%

Pre-grafted Group on PE Surface by DBD Plasma and Its Influence on the Oxygen Permeation with Coated SiOx

Yang

Wang

et al. 2019

Molecules

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In this paper, we report on polyethylene (PE) film modified by atmospheric dielectric barrier discharge (DBD) plasma prior to the deposition of SiOx coating to improve its barrier properties. Three kinds of monomers: allylamine, acrylic acid, and ethanol, are used to modify the PE surface. For comparison, Ar and O2 plasma pre-treatments are also performed. It is found that with the addition of a monomer in the Ar DBD plasma, the grafted active groups on PE surfaces lead to dense, pinhole-free growth of the SiOx film. The oxygen transmission rate (OTR) decreases from 700 cc/m2·day·atm. for the pristine to ca. 70 cc/m2·day·atm. for the pretreatment-coated PE, which is more than a 10-fold reduction. The relationship between the grafted monomer and the great decrease of OTR is then explored via chemical composition by attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and via morphology observation by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The results show that the grafted functional groups of -NH2, -COOH and -OH increase the surface energy and promote the nucleation of Si–O radicals on polymeric surfaces, and the formation of network and cage structures in SiOx film contributes to the significant improvement of OTR.

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Section: Resultsmentioning

confidence: 99%

Pre-grafted Group on PE Surface by DBD Plasma and Its Influence on the Oxygen Permeation with Coated SiOx

Yang

Wang

et al. 2019

Molecules

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Insight into the remaining high surface energy of atmospheric DBD plasma-treated polyethylene web after three months’ aging

WANG

Yang

et al. 2018

Plasma Sci. Technol.

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In this paper, we report the modification of polyethylene (45 μm in thickness) webs through a roll-to-roll dielectric barrier discharge plasma treatment in an open atmospheric environment. Our work differs from the normal adopted corona discharge treatment at an atmospheric pressure, in that three monomers: allylamine, acrylic acid, and ethanol, are inlet into the discharge zone by argon (Ar) carrier gas. As a comparison, Ar plasma treatment is also carried out. We focus on the aging properties of treated plastics in the open air. It is found that the modified webs can retain the surface energy as high as 50.0±1 mN m −1 for more than three months. After characterization of the as-prepared and aged samples by the surface roughness, the wettability, and the chemical structure, the mechanism of retaining high surface energy is then presumed. We think that the initial high surface energy just after plasma treatment is correlated to the grafted functional groups, while the over 50.0 mN m −1 remaining surface energy after three month aging is due to the stable concentrations of oxygen-contained and nitrogencontained groups by post-reaction on the surfaces.

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Surface Modification of Polyethylene Film by Atmospheric Pressure Glow Discharge Liquid Deposition Polymerization

Cited by 2 publications

References 8 publications

Pre-grafted Group on PE Surface by DBD Plasma and Its Influence on the Oxygen Permeation with Coated SiOx

Pre-grafted Group on PE Surface by DBD Plasma and Its Influence on the Oxygen Permeation with Coated SiOx

Insight into the remaining high surface energy of atmospheric DBD plasma-treated polyethylene web after three months’ aging

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