Weathering resistance of modified wood - A review (CROSBI ID 782825)
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Podaci o odgovornosti
Jirouš-Rajković, Vlatka ; Miklečić, Josip
engleski
Weathering resistance of modified wood - A review
Wood in exterior structures undergoes certain chemical and physical changes which cause slow degradation of its surface commonly known as weathering. Major aspects of the weathering of wood are aesthetic effects such as discolouration, loss of lightness, surface roughening, cracking, checking, dirt uptake, wood cell erosion and growth of mould and staining fungi. Wood modification is becoming an ever-popular method of enhancing of wood properties, primarily dimensional stability and biological resistance. The wood modification processes that have been successfully commercialized in Europe in the past two decades are presented briefly. To what extent modification of wood affects the resistance of wood to weathering is also an important aspect for exterior wood applications, especially where appearance is important. The aim of this paper is to review the literature on weathering resistance of wood modified by today's commercial modification techniques including thermal modification in various shield media, acetylation, furfurylation and modification with N-metylol compound 1, 3-dimethylol-4, 5- dihydroxyethyleneurea (DMDHEU). The effect of modification on the weathering performance of wood during natural or artificial exposure were analysed with respect to optical appearance, surface erosion, crack formation, mould growth and performance of system coating - wood.
Weathering ; Thermally treated wood ; Acetylated wood ; Furfulylated wood ; DMDHEU-modified wood
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Podaci o izdanju
Jubilee annual 2017-2018 of the Croatian Academy of Engineering
2018.
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objavljeno
1332-3482