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Površinska obdelava naravne in termično modificirane resonančne smrekovine : diplomsko delo : univerzitetni študij = Surface finishing of natural and thermally modified resonant spruce wood : graduation thesis : university studiesHribar, Mateja, 3.12.1979-Vzorce resonančne smrekovine smo termično modificirali v vakuumu pri temperaturah 170, 180 ter 190 °C in jim določili izgubo mase, ki je posledica termične obdelave. Nato smo vse vzorce, skupaj s ... kontrolnimi, izpostavili štirim klimam z različno relativno zračno vlažnostjo (33, 44, 65 in 88 %) in konstantno temperaturo 20 °C, ter določili adsorpcijske in desorpcijske krivulje. Pri vseh pogojih izpostavitve so termično modificirani vzorci izkazali nižje ravnovesne vlažnosti kot kontrolni. Ugotovili smo, da so sorpcijske lastnosti termično modificiranih vzorcev v tesni povezavi z izgubo mase. Večja kot je izguba mase termično modificiranega vzorca, nižja je njegova ravnovesna vlažnost. Zatem smo vse vzorce premazali s 3 različnimi premaznimi sredstvi (z 2-komponentnim poliuretanskim in uretansko-alkidnim lakom ter s 33,7 % raztopino propolisa v etanolu) ter ponovili postopek uravnovešanja pri navedenih pogojih. Izguba mase termično modificiranih vzorcev je imela večji vpliv na sorpcijske lastnosti kot pa uporabljeni površinski premazi. Na koncu smo primerjali še lastnosti (sijaj, prožnost in oprijemnost) utrjenih filmov na nemodificiranem in modificiranem lesu. Preizkušene lastnosti vseh povrsinških premazov na termično modificiranih vzorcih so bile primerljive z lastnostmi na kontrolnih (naravnih) vzorcih.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Hribar], 2008Language - slovenianCOBISS.SI-ID - 1662857
Author
Hribar, Mateja, 3.12.1979-
Other authors
Petrič, Marko, 1962- |
Pohleven, Franc |
Gorišek, Željko
Topics
resonančna smrekovina |
termična modifikacija |
sorpcijske lastnosti |
površinska obdelava |
resonance spruce |
thermal modification |
sorption characteristics |
surface finishing |
surface finishing
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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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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Hribar, Mateja, 3.12.1979- | |
Petrič, Marko, 1962- | 00395 |
Pohleven, Franc | 05248 |
Gorišek, Željko | 05732 |
Source: Personal bibliographies
and: SICRIS
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