Surface barrier discharge assisted deposition of water repellent films from N&lt;inf&gt;2&lt;/inf&gt;/HMDSO mixtures on surface of poplar veneer

Odrášková, M.; Šťahel, Pavel; Smolar, M.

doi:10.1109/plasma.2008.4590724

Cited by 3 publications

(2 citation statements)

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“…The quantity of deposited material by PECVD is orders of magnitude smaller, making the process more cost-efficient and the product recyclable [ 3 ]. With the recent advantages in plasma techniques, both low-pressure [ 4 , 7 ] and atmospheric pressure [ 2 , 3 , 25 ] plasma can be successfully employed. The initial investment in PECVD systems in case of low-pressure plasma might be high, while the operating costs are low, and any high-volume industry should on the long run profit using these systems.…”

Section: Introductionmentioning

confidence: 99%

The Oleofobization of Paper via Plasma Treatment

Resnik

Levičnik

Gosar³

et al. 2021

Polymers

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Cellulose is a promising biomass material suitable for high volume applications. Its potential lies in sustainability, which is becoming one of the leading trends in industry. However, there are certain drawbacks of cellulose materials which limit their use, especially their high wettability and low barrier properties, which can be overcome by applying thin coatings. Plasma technologies present a high potential for deposition of thin environmentally friendly and recyclable coatings. In this paper, two different plasma reactors were used for coating two types of cellulose-based substrates with hexamethyldisiloxane (HMDSO). The changes in surface characteristics were measured by atomic force microscopy (AFM), scanning electron microscopy (SEM), surface free energy and contact angles measurements, X-ray photoelectron spectroscopy (XPS), and secondary ion mass spectrometry (SIMS). Successful oleofobization was observed for an industrial scale reactor where pure HMDSO was used in the absence of oxygen.

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Section: Introductionmentioning

confidence: 99%

The Oleofobization of Paper via Plasma Treatment

Resnik

Levičnik

Gosar³

et al. 2021

Polymers

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“…This plasma set-up does not require vacuum conditions, is more effective because of the higher pressure and is well suited for the creation and deposition of thin hydrophobic layers on wood surfaces (Mahlberg et al, 1998;Denes et al, 1999;Bente et al, 2004;Odrásková et al, 2007Odrásková et al, , 2008b. In contrast to Denes et al (1999) and Mahlberg et al (1998), who conducted plasma treatment at low pressure, and Odrásková et al, (2007Odrásková et al, ( , 2008b, who used a diffuse coplanar surface barrier discharge, which requires a small discharge gap of 0.3 mm, in the present study a plasma jet was used to create a HMDSO-containing plasma at atmospheric pressure. This set-up combines the advantages of atmospheric pressure and a certain degree of independence from the surface profile, substrate material and thickness, and is therefore well suited for the deposition of thin surface layers on wood.…”

Section: Introductionmentioning

confidence: 99%

Plasma treatment of wood and wood-based materials to generate hydrophilic or hydrophobic surface characteristics

Avramidis¹,

Hauswald²,

Lyapin³

et al. 2009

Wood Material Science & Engineering

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Plasma treatment at atmospheric pressure using a dielectric barrier discharge was carried out to increase the surface hydrophilicity of wood and wood-based materials. Surface energy determination by contact angle measurement revealed an increase in the polar component of surface energy and in total surface energy following plasma treatment. X-ray photoelectron spectroscopy revealed the generation of polar groups and consequently an increase in O/C ratio. The feasibility of plasma polymerization on wooden substrates at atmospheric pressure to create water-repellent characteristics was also investigated. An atmospheric-pressure plasma jet using hexamethyldisiloxane as precursor and air as process gas was used for thin-layer deposition. Treatment parameters for the layer deposition were investigated, as well as the layer topography and chemical composition. Atomic force microscopy revealed a closed surface layer consisting of silicon, oxygen, carbon and hydrogen that exhibited low water permeability.

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