Role of helium plasma pretreatment in the stability of the wettability, adhesion, and mechanical properties of ammonia plasma-treated polymers. Application to the Al-polypropylene system

Tatoulian, Michaël; Arefi‐Khonsari, Farzaneh; Mabille-Rouger, I.; Amouroux, J.; Gheorgiu, M.; Bouchier, D.

doi:10.1163/156856195x00798

Cited by 52 publications

(20 citation statements)

References 17 publications

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“…A pure helium and argon discharge do not contain any chemically active species and normally lead to cross-linking and double bond formation on polymer surfaces [45]. However, in this section, it is shown that oxygen atoms and nitrogen atoms are added to the PLA surfaces after argon and helium plasma treatment respectively.…”

Section: Discussionmentioning

confidence: 79%

Influence of Discharge Atmosphere on the Ageing Behaviour of Plasma-Treated Polylactic Acid

Morent

Geyter

Trentesaux

et al. 2010

Plasma Chem Plasma Process

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The effect of a plasma treatment on polymers is not permanent, since the treated surfaces tend to recover to the untreated state (ageing process). This paper investigates the influence of discharge atmosphere on the ageing behaviour of plasma-treated PLA foils: these foils are plasma-treated with a DBD in 4 different atmospheres (air, nitrogen, argon and helium) and are subsequently stored in air. Results of contact angle and XPS measurements show that the discharge gas has a significant influence on the ageing behaviour of the PLA foils. This influence can be explained by the different cross-linking degree of the plasma-treated surfaces: helium and argon plasma-treated PLA films have a high cross-linking degree, which limits polymer chain mobility and as a result reduces the ageing process. In contrast, the ageing behaviour of air and nitrogen plasma-treated films is more pronounced due to their low cross-linking degree.

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Section: Discussionmentioning

confidence: 79%

Influence of Discharge Atmosphere on the Ageing Behaviour of Plasma-Treated Polylactic Acid

Morent

Geyter

Trentesaux

et al. 2010

Plasma Chem Plasma Process

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“…However, a pure helium plasma does not contain any chemically reactive species and normally leads to cross-linking and double bond formation on polymer surfaces [40]. Most likely, in this work, the oxygen incorporation during plasma treatment is due to the fact that in the used set-up it is very difficult, if not impossible, to ensure that treatment occurs in pure helium.…”

Section: Effect Of Humid Air Exposure Between Successive Pet Plasma Tmentioning

confidence: 94%

Effect of humid air exposure between successive helium plasma treatments on PET foils

Jacobs¹,

Morent²,

Desmet³

et al. 2010

Surface and Coatings Technology

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“…For example, the adhesion of aluminum on polyethylene is strongly improved by low‐pressure plasma treatments in N 2 and even more so in NH 3. 10–12 The larger uptake of nitrogen in the case of NH 3 was attributed to the assumed role of the NH radical. Ammonia plasmas can also be used to functionalize nitrocellulose membranes with up to 2.4 amino groups per nm 2 surface, according to derivatization investigations with 14 C‐labelled formaldehyde 13, 14.…”

Section: Introductionmentioning

confidence: 99%

Plasma Amination of Low‐Density Polyethylene by DBD Afterglows at Atmospheric Pressure

Klages

Grishin

2008

Plasma Processes & Polymers

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Surfaces of LDPE can be functionalized with primary amino groups using the afterglows from dielectric barrier discharges in N2, N2 + H2, and N2 + NH3 mixtures at atmospheric pressure. Quantitative analysis by a recently developed ATR FT‐IR spectroscopic method allows calculation of the number of NH2 groups generated per unit area. Treatment in N2 + H2 afterglows was found to be most efficient in terms of area densities of primary amines achieved (more than 15 nm−2), but appreciable quantities of NH2, up to about 3 nm−2, are also obtained in pure N2. Possible mechanisms of the amination reaction and the roles of gas additives are discussed.

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Role of helium plasma pretreatment in the stability of the wettability, adhesion, and mechanical properties of ammonia plasma-treated polymers. Application to the Al-polypropylene system

Cited by 52 publications

References 17 publications

Influence of Discharge Atmosphere on the Ageing Behaviour of Plasma-Treated Polylactic Acid

Influence of Discharge Atmosphere on the Ageing Behaviour of Plasma-Treated Polylactic Acid

Effect of humid air exposure between successive helium plasma treatments on PET foils

Plasma Amination of Low‐Density Polyethylene by DBD Afterglows at Atmospheric Pressure

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