Naslov
The sorption properties of some thermal treated hardwoods analysed by thermodynamics, surface fractality and FT-NIR spectroscopy

Autori
Straže, Aleš ; Gorišek, Željko ; Pervan, Stjepan ; Sandak, Anna ; Sandak, Jakub

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Characterization of modified wood in relation to wood bonding and coating performance / Medved, Sergej ; Kutnar, Adreja - Ljubljana : University of Ljubljana, Biotechnical Faculty, Department of wood Science and Technology, 2013, 228-237

ISBN
978-961-6144-37-7

Skup
Characterization of modified wood in relation to wood bonding and coating performance

Mjesto i datum
Rogla, Slovenija, 16.10.2013. - 18.10.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
hardwood; thermal modification; sorption; FT-NIR spectroscopy; fractal dimension.

Sažetak
The sorption- and chemical properties of ash- and beech wood after industrial heat treatment in water-vapour atmosphere were analysed by sorption thermodynamics, adsorbing surface fractality from sorption isotherms and by FT-NIR spectroscopy. Considerable reduction of water vapour sorption capacity after heat treatment of wood was confirmed at both wood species, more significant at beech wood in the middle hygroscopic range. Fractal dimension of internal adsorbing wood surfaces increased with amount of sorbed water and also after thermal processing. FT-NIR spectroscopy revealed most significant differences in chemical properties of hemicelluloses and revealed regions and bands, where considerable changes are appearing due to changed water sorption of innate- and heat-treated ash- and beech wood.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija

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