Vplyv sálavého ohrevu na chemické zmeny smrekového dreva = The influence of radiant heating on chemical changes of spruce wood / Iveta Čabalová ... [et al.]. -- Graf., tab. -- Lit. - Spruce wood (Picea abies (L.) Karst.) board samples with dimensions of 60 × 60 × 800 mm were thermally loaded by radiant heating. Then the amounts of extractives, cellulose and lignin in the samples were determined. The alterations of degree of polymerisation (DP) and molecular weight distribution (MWD) were analysed by gel permeation chromatography (GPC) of cellulose tricarbanilates (CTC). The amount of cellulose, lignin and extractives increased and cellulose DP decreased after the thermal loading. The results showed that amounts of lignin and extractives increased with increasing thermal loading, in charred layer yield of extractives decreased. The polysaccharidic part significantly degraded, cellulose DP dropped by one-third, but also cross-linking of cellulose takes place. - Cieľom príspevku je charakterizovať chemické zmeny extraktívnych látok, lignínu, polysacharidov a zmeny molekulových hmotností celulóz smrekového dreva (Picea abies (L.) Karst.) po jeho tepelnom zaťažení sálavým ohrevom.

In Acta facultatis xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- ISSN 1336-3824. -- Roč. 55, č. 2 (2013), s. 59-66

I. Čabalová, Iveta, 1979-
II. Kačík, František, 1958-
III. Kačíková, Danica, 1964-
IV. Oravec, Matej
V. Acta facultatis xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Roč. 55, č. 2 (2013), s. 59-66

630*174.7+630*813.2+630*824.87+630*863+547.458.81+630*864.4+543.544.153
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