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Vpliv temperature in trajanja postopka termične modifikacije lesa na fungicidne lastnosti modificiranega lesa : diplomsko delo - univerzitetni študij = Influence of temperature and duration of thermal modification process on fungicidal properties of modified wood : graduation thesis - university studiesŠtabuc, NikoTermična modifikacija je eden izmed komercialno najuspešnejših postopkov modifikacije. Pomemben kazalnik kakovosti termične modifikacije lesa je izguba mase, ki je funkcija časa in temperature ... izpostavitve. Ugotavljali smo, kateri parameter bolj vpliva na odpornost lesa na glive razkrojevalke. Vzorce bukovine, ki so bili 1, 1,5; 2; 3; 4; 6; 8; 16; 36 ur termično modificirani pri temperaturi 180 °C in 220 °C, smo izpostavili glivi Trametes versicolor. Smrekovino, ki je bila 1, 1,5; 2; 3; 4; 6; 10; 16; 36; 72 ur termično modificirana pri temperaturi 180 °C in 220 °C, smo izpostavili glivi Gloeophyllum trabeum. Po 16 tednih izpostavitve vzorcev glivam smo z gravimetrično metodo določili izgubo mase in jo primerjali z izgubo mase med samim postopkom termične modifikacije. Ugotovili smo, da je odpornost lesa proti glivam v linearni povezavi z izgubo mase, nastale med postopkom termične modifikacije. Kako pridemo do izgube mase med termično modifikacijo (daljši čas in nižja temperatura ali krajši čas in višja temperatura) ni pomembno, saj je odpornost proti glivam primerljiva. Pri modifikaciji pri nižji temperaturi (180 °C) ne dosežemo dovolj velikih stopenj modifikacije, da bi les ustrezno zaščitili. Vpliv postopkov termične modifikacije na kratkotrajne navzeme vode smo določali s tenziometrom, in ugotovili, da so vzorci z višjo stopnjo modifikacije bolj hidrofobni.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [N. Štabuc], 2012Language - slovenianCOBISS.SI-ID - 2020233
Author
Štabuc, Niko
Other authors
Humar, Miha |
Lesar, Boštjan |
Pohleven, Franc
Topics
les |
termična modifikacija |
temperatura |
odpornost |
navzem |
wood |
thermal modification |
temperature |
resistance |
sorption
Library/institution |
City | Acronym | For loan | Other holdings |
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BF, Department of Wood Science and Technology, Lj. | Ljubljana | BFLES |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Štabuc, Niko | |
Humar, Miha | 19106 |
Lesar, Boštjan | 28503 |
Pohleven, Franc | 05248 |
Source: Personal bibliographies
and: SICRIS
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