Plasma treatment of heat treated beech wood – investigation on surface free energy

Wolkenhauer, Arndt; Avramidis, Georg; Militz, Holger; Viöl, Wolfgang

doi:10.1515/hf.2008.074

Cited by 55 publications

(26 citation statements)

References 19 publications

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“…Brischke et al (2007) reported on the interrelationship between heat treatment intensities and color data of wood. The improved wettability of heat-treated wood is well known (Pétrissans et al 2003;Hakkou et al 2005) and Wolkenhauer et al (2008) investigated recently the surface free energy of heat treated beech wood. It is obvious from studies based on hydrogen-deuterium exchange and 2 H NMR spectroscopy that the number of accessible OH groups in heat treated wood is decreased (Phuong et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Dubey¹,

Pang²,

Walker³

2012

Holzforschung

104

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Pinus radiata wood specimens were heat-treated at 160-2108C in linseed oil and the effects of treatment on chemical composition, color, dimensional stability, and fungal resistance were examined. The degradation of hemicelluloses was the most remarkable feature, which is the principal reason for alterations in wood properties. Removal or migration of extractives, oil uptake and the accumulation of oil on the wood surface were observed. The color of heattreated wood became more uniform and darker, and its dimensional stability (i.e., anti-swelling efficiency) and fungal resistance were improved by up to 60% and 36%, respectively. The viscosity of the oil after treatment was elevated with the treatment temperature and was higher in comparison to heated oil without wood present.

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Section: Introductionmentioning

confidence: 99%

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Dubey¹,

Pang²,

Walker³

2012

Holzforschung

104

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“…Researchers have reported contradictory results for changes in surface energy of thermally modified wood. Some found that heat treatment reduced the surface energy of wood [35,62], and others reported improvements or no changes after modifications [63,64]. A few studies also observed reduced adhesion of coating to heat-treated woods in comparison with untreated woods [36,65].…”

Section: Coating Performancementioning

confidence: 99%

Exterior Wood Coatings

Nejad¹,

Cooper²

2017

Wood in Civil Engineering

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In addition to aesthetic appeal, coatings are designed to protect the wood from weathering degradation in outdoor conditions. This chapter gives an overview of the effects of the main coating components, coating properties, wood properties and treatments on coated wood performance in service. Understanding how different type of resins, pigments, solvents, and other major additives affect coating performance on wood, helps coating formulators to develop more durable coatings. It is beneficial for both wood scientists and coating chemists to learn which properties of coatings have the highest impact on predicting their service lives when exposed to weathering. For instance, measuring glass transition temperature (Tg) defines the degree of flexibility of a coating. Since wood swells and shrinks due to moisture uptake and subsequent drying, flexibility of a coating plays a critical role in defining its durability on wood in exterior conditions. Similarly, learning how preservative treatment or a new modification technique changes the surface properties of wood will help coating formulators to adjust properties of coatings in way that would have better adhesion and performance on that specific modified wood. Also, the effects of these factors in increasing service life of exterior wood coatings are discussed.

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“…Obdelava lesa in lesnih kompozitov s plazmo predstavlja enega od načinov za spremembo lastnosti površin (Wolkenhauer et al, 2008;Demirkir et al, 2014), na katere lahko z namenom povečanja površinske zaščite materiala nanesemo različne premaze (Riedl et al 2014). Do sedaj je bilo veliko raziskav izvedenih na temo obnašanja tekočin na tako modificiranih površinah, v smislu merjenja kontaktnih kotov in določanja proste površinske energije s plazmo obdelanih površin lesa Wolkenhauer et al, 2015).…”

Section: Uvod / Intruductionunclassified

Gozd in les: 70 let

Humar¹,

Kraigher²

2017

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Plasma treatment of heat treated beech wood – investigation on surface free energy

Cited by 55 publications

References 19 publications

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Changes in chemistry, color, dimensional stability and fungal resistance of Pinus radiata D. Don wood with oil heat-treatment

Exterior Wood Coatings

Gozd in les: 70 let

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