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Modification of maple wood colour during the process of thermal treatment with saturated water steam
Názov Modification of maple wood colour during the process of thermal treatment with saturated water steam Aut.údaje Michal Dudiak Autor Dudiak Michal (Umelec) TUZDFOD - Katedra obrábania dreva Zdroj.dok. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. Vol. 63, no. 1 (2021), s. 25-34. - Zvolen : Technická univerzita vo Zvolene, 2021 Poznámky Lit. Jazyk dok. angličtina Krajina Slovenská republika Systematika 674.031.746.51 630*812.111 Heslá javorové drevo - maple wood * modifikácia - modification * farebné zmeny dreva - colour changes of wood * acidita dreva - wood acidity * hustota - density * nasýtené vodné pary - saturated water steams Anotácia The technological process of colour modification and the associated parallel processes of changing the acidity and density of maple wood modified in pressure autoclave with saturated water steam is evaluated in the paper. Maple wood was thermally treatment at the temperatures of: tI = 105 ± 2.5 °C, tII = 125 ± 2.5 °C and tIII = 135 ± 2.5 °C for τ = 3, 6, 9 and 12 hours. Direct pH measurement of maple wood with the moisture content above the fiber saturation point (FSP) was performed using SI 600 pH meter with LanceFET + H puncture probe. The acidity values of maple wood ranged from pH = 5.1 in the case of native wood, and the acidity of the wood changed to pH = 3.3 due to the temperature and time of modification. The density of maple wood was determined using the RADWAG KIT 128 instruments. The total change in the density of wood during the modification process was 5.3 % lower than the density of native wood. Statistical evaluation of the measured results showed the correlations between the total colour difference and pH. URL https://df.tuzvo.sk/sites/default/files/03-01-21.pdf Kategória publikačnej činnosti ADN Báza dát xcla - ČLÁNKY Druh dok. RBX - rozpis článkov z periodík Odkazy PERIODIKÁ-Súborný záznam periodika Čísla 2021: 1 
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Počet záznamov: 1