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Vpliv lepilnega spoja na prečno difuzijo vodne pare : magistrsko delo = Influence of glue-bond on transverse diffusion of water vapour : master of science thesisŠega, BogdanLepilni spoj v sistemu les-lepilo-les predstavlja dodaten upor, ki ovira prehod vodne pare. Povečan upor zlepljenih preskušancev je posledica prisotnosti lepila v spoju in tudi sprememb v lastnostih ... lesa, zlasti povečane gostote ter manjše higroskopičnosti, ki sta posledici izpostavitve lesa pogojem lepljenja. Difuzijske koeficiente smo določili z uporabo nestacionarne metode. Primerjaki smo kinetike navlaževanja masivnih bukovih in zlepljenih preskušancev, pa vzporednih preskuššancev, sicer brez lepilnih spojev, vendar izpostavljenih pogojem lepljenja. Ugotovili smo, da tanki lepilni spoji, izdelani s tekočimi lepili, ne predstavljajo bariere, ki bi učinkovito zadržala prodiranje vodne pare in vezane vode v lepljenec. Preskušanci, zlepljeni s takšnimi lepili, so po 600 urah navlaževanja absorbirali maksimalno 15% manj vode kot masivni preskušanci. Večji upor so predstavljali le spoji s FF lepilnim filmom. Med difuzijskimi koeficienti, izračunanimi iz analitičnih rešitev in rešitve enačbe prvega reda, obstajajo statistično značilne razlike. Prečno difuzijo vodne pare in vezane vode v lesu lahko opišemo kot sistem prvega reda. Maksimalna napaka modela je najmanjša pri modelu prvega reda in znaša približno 1%.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [B. Šega], 2002Language - slovenianCOBISS.SI-ID - 844681
Author
Šega, Bogdan
Other authors
Resnik, Jože, 1942- |
Bučar, Bojan, 1961-2012 |
Gorišek, Željko |
Houška, Mladen
Topics
lepilni spoj |
difuzivnost |
vodna para |
vlažnost |
vlažnost |
glue-bond |
diffusivity |
water vapour |
moisture
Library | Call number – location, accession no. ... | Copy status |
---|---|---|
BF, Central Biotechnical Library, Lj. | Skladišče M II 8295 IN: 02002056460 |
available - outside loan, loan period: 30 days |
BF, Dept. of Wood Technology, Lj. | Knjižnica BF za lesarstvo MD 72 IN: 020020091 |
available - reading room |
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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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Šega, Bogdan | 13057 |
Resnik, Jože, 1942- | 06324 |
Bučar, Bojan, 1961-2012 | 01392 |
Gorišek, Željko | 05732 |
Houška, Mladen | 00959 |
Source: Personal bibliographies
and: SICRIS
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