Creation of superhydrophobic wood surfaces by plasma etching and thin-film deposition

Xie, Linkun; Tang, Zhenguan; Lu, Jiang; Breedveld, Victor; Hess, Dennis W.

doi:10.1016/j.surfcoat.2015.09.052

Cited by 106 publications

(41 citation statements)

References 45 publications

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“…The morphological change caused by the action of plasma is similar to that reported by Sapieha et al 24 , Balu et al 25 and Xie et al 36 . These authors attribute the creation of nanostructures to the crystalline phase revealed after the preferred reaction of plasma species with the amorphous phase of the microfibrils.…”

Section: Morphologysupporting

confidence: 88%

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

et al. 2018

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Cellulose is a polymer widely available in nature, however its applications may be restrict due to its hydrophilic character. The creation of hierarchical structures on the surface is one of the required factors to obtain the hydrophobicity of this material. In order to compare the morphological and chemical effects caused by the action of different gases in the creation of nanostructures on the cellulose surface, samples were exposed to oxygen (O 2 ) and sulfur hexafluoride (SF 6 ) plasma treatments. The changes in morphology after treatment prove that both the gases were able to create similar nanostructures in the material. The analysis of elemental composition and identification of functional groups on the sample surface showed that chemical modifications occurred differently for each treatment. Contact angle measurements revealed that samples treated by O 2 plasma remained hydrophilic, whereas low receptivity to polar (θ > 120º) and non-polar (θ > 100º) liquids was observed for samples exposed to SF 6 plasma.

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Section: Morphologysupporting

confidence: 88%

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

et al. 2018

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“…Increased surface roughness of wood induced by plasma etching on a scale of several micrometers have already been reported by using laser scanning confocal microscope tests (Jamali and Evans 2011;Tang et al 2015;Xie et al 2015). However, surface etching is difficult to observe for wood veneer, as rotary cutting makes the veneer surface terribly rough with high roughness variation (Dundar et al 2008).…”

Section: Roughness Analysismentioning

confidence: 99%

“…In recent years, plasma treatment on wood surfaces has been considered the most effective way to improve adhesion strength (Acda et al 2012). Xie et al (2015) roughened the wood surface to control interaction with another phase by using radio-frequency oxygen plasma. Tang et al (2012Tang et al ( , 2015 treated poplar veneer surface with radio-frequency oxygen plasma.…”

Section: Introductionmentioning

confidence: 99%

Effect of Plasma Processing Rate on Poplar Veneer Surface and its Application in Plywood

Chen¹,

Zhang²,

Tang³

et al. 2015

BioResources

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Dielectric barrier discharge (DBD) plasma at atmospheric pressure in air was applied to a poplar veneer surface. Effects of plasma processing rate on surface morphology, chemical property, and surface wettability of the poplar veneer were investigated. The adhesion strength of urea formaldehyde (UF) glued plywood manufactured from the modified veneer was also studied. Atomic force microscopy (AFM), electron spinresonance spectroscopy (ESR), X-ray photoelectron spectroscopy (XPS), contact angle tests, and shear strength tests were carried out. AFM indicated that the surface roughness increased after plasma treatment and was the maximum at a processing rate of 14 m/min. Both ESR and XPS tests showed more oxygen accumulation on the wood surface, forming various oxygen-containing chemical groups. Contact angle tests showed better wetting at a decreased plasma processing rate. Consequently, the adhesion strength of plywood increased after plasma treatment and showed higher strength at lower processing rates.

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“…The chemical reaction responsible for hydrophobization of wood samples takes place in a postdischarge zone, which is 5 to 8 mm under the plasma discharge. Combination of plasma discharge and thin film deposition was presented also in a study by Xie et al (2015). The described technique led to a superhydrophobic behavior of wood surface.…”

Section: Introductionmentioning

confidence: 98%

Superhydrophobic Coating of European Oak (Quercus robur), European Larch (Larix decidua), and Scots Pine (Pinus sylvestris) Wood Surfaces

Šprdlík¹,

Kotradyová²,

Tiňo³

2017

BioResources

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Plant surfaces provide an unlimited source of systems for the protection of their surface against the outer environment. These systems have continuously improved over the last 400 million years of evolution. Two of the most fascinating properties of these systems are superhydrophobicity and the self-cleaning ability of several plant species. These properties are most often achieved due to the hierarchical structure of the surface in combination with a deposited blend of epicuticular waxes. In this study, a layer of n-hexatriacontane was deposited on wood surfaces via thermal evaporation, and the self-assembly ability was investigated for various wood species with differently machined surfaces. The behavior of wax crystals was observed using scanning electron microscopy (SEM) and confocal microscopy. The impact on wettability was investigated by measuring contact angles and tilt angles. With wax deposition, a significant change of wettability was achieved, which was represented by the transition from hydrophilic to superhydrophobic surface behavior. The self-assembly ability of n-hexatriacontane resulted in an increased contact angle in all observed samples.

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Creation of superhydrophobic wood surfaces by plasma etching and thin-film deposition

Cited by 106 publications

References 45 publications

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

Morphological and Chemical Effects of Plasma Treatment with Oxygen (O2) and Sulfur Hexafluoride (SF6) on Cellulose Surface

Effect of Plasma Processing Rate on Poplar Veneer Surface and its Application in Plywood

Superhydrophobic Coating of European Oak (Quercus robur), European Larch (Larix decidua), and Scots Pine (Pinus sylvestris) Wood Surfaces

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