Amination and Oxidation Reactions on Polyethylene Surfaces by Ammonia Plasma Treatment

Narushima, Kazuo; Fukuoka, Megumi; Kawai, H.; Inagaki, N.; Isono, Yoshihiro; Islam, Mohammed Rafiqul

doi:10.1143/jjap.46.7855

Cited by 10 publications

(11 citation statements)

References 12 publications

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“…24 With regards to the attachment of nitrogen functionalities to the treated surface, particularly amine groups, other authors have reported a dependence on the applied power, gas mixture, and gas pressure. 24,25 The observed trend is similar to the one described in this study, with higher yield of nitrogen functionalities at low power and higher pressure. 26 The mechanism behind this correlation with the applied power has been attributed to changes in the plasma chemistry, mainly dissociation of N 2 , H 2 , and NH 2 /NH 3 species at higher power.…”

Section: A Active Species Responsible For the Surface Functionalizationsupporting

confidence: 87%

Surface functionalization of carbon fibers with active screen plasma

Gallo

Charitidis

Dong

2017

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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The active screen plasma technology was used to functionalize carbon fibers and vitreous carbon disks. The plasma treatment conditions were mapped using optical emission spectroscopy and the functionalized surfaces were analyzed using scanning electron microscopy and atomic force microscopy, x-ray photoelectron spectroscopy, and contact angle measurements. A relationship was found between the active species in the plasma and the functional groups attached to the carbon surfaces, which provides valuable information for the optimization of the active screen plasma treatment. Moreover, the surface analyses were repeated over a period of 28 days to study the aging of the functionalized surfaces in air. The hydrophobic recovery was modeled using a surface restructuring theory which revealed a mean lifetime of 3.4 days for the functional groups. V

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Section: A Active Species Responsible For the Surface Functionalizationsupporting

confidence: 87%

Surface functionalization of carbon fibers with active screen plasma

Gallo

Charitidis

Dong

2017

Journal of Vacuum Science &Amp; Technology A: Vacuum, Surfaces, and Films

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“…Presumably, carbon radicals are formed at broken ester bonds, where N radicals bind to form N-C=O. 6,7) The presumption described above in relation to ammonia plasma anticipates that nitrogen plasma irradiated on LCP and PET surfaces introduces many amide groups. In nitrogen plasma, N radicals are included, wehther NH 2 radicals are not included.…”

mentioning

confidence: 99%

“…The basis of the reaction between radicals in polymers and oxygen in air is stated in an earlier study. 6,7) On the other hand, because it is presumed that various radicals containing nitrogen in ammonia gain high energy at high power, the reaction occurs easily between carbon radicals in PET and radicals containing nitrogen, so that carbon radicals remain only slightly. Accordingly, it is presumed that the samples only slightly react with oxygen when exposed to air.…”

mentioning

confidence: 99%

Effect of Irradiation Power on Surface Modification of Polyester by Ammonia Plasma Treatment

Narushima¹,

Yamashita

Isono

et al. 2008

jjap

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The power dependence of nitrogen functional group introduction treated with ammonia plasma on poly(ethylene terephthalate) (PET) and liquid crystal polymer (LCP) was investigated. The ratios of NH2 and N–C=O groups, which are the introduced functional groups, differ depending on the power used for plasma generation. The ratio of N–C=O groups increases with increasing power. For PET, the introduction of oxygen functional groups occurs at low power. Power dependences of contact angles were found for PET and LCP. They are related to the different types and quantities of functional groups with respect to the power. A considerable decrease in contact angles is apparent at the low-power side of 0–15 W.

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“…1 Application of plasma treatment in the textile industry changes the traditional process for textile production. 2,3 It satisfies the requirement of sustainable development of the environment and keeps the bulk properties of textiles at the same time. 4–7 This is because the principle of plasma used for textile finishing is based on a simple physical principle, that is, matter changes its state when electrical energy is applied to it.…”

mentioning

confidence: 94%

Plasma treatment applied in the pad-dry-cure process for making rechargeable antimicrobial cotton fabric that inhibits S. Aureus

Zhou

Kan

Yuen

et al. 2016

Textile Research Journal

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In this paper, variables in an environmentally friendly rechargeable antimicrobial finishing process were studied. Cotton fabric was treated with nitrogen plasma after padding with 5,5-dimethylhydantoin (DMH) when fabric was treated through the pad-dry-cure method, that is, pad-plasma-dry-cure. After that, fabric was chlorinated with sodium hypochlorite to impart antimicrobial property and function. An orthogonal array testing strategy was used in the finishing process for finding the optimum treatment condition. Ultraviolet spectroscopy, scanning electron microscopy and Fourier transform infrared spectroscopy were employed to evaluate the properties of treated cotton fabric, including concentration of chlorine on cotton fabric, morphological properties of the surface of cotton fabric and function groups on the cotton fabric. The results showed that cotton fabric finished with DMH with the help of plasma treatment followed by chlorination inhibits microorganisms effectively, the antimicrobial property against Staphylococcus (S.) aureus was rechargeable and durability of antimicrobial property was improved by plasma treatment.

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Amination and Oxidation Reactions on Polyethylene Surfaces by Ammonia Plasma Treatment

Cited by 10 publications

References 12 publications

Surface functionalization of carbon fibers with active screen plasma

Surface functionalization of carbon fibers with active screen plasma

Effect of Irradiation Power on Surface Modification of Polyester by Ammonia Plasma Treatment

Plasma treatment applied in the pad-dry-cure process for making rechargeable antimicrobial cotton fabric that inhibits S. Aureus

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