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Vpliv modifikacije lesa s tehnologijo Plato na kvaliteto lepljenja : diplomsko delo : visokošolski strokovni študij = Influence of wood treatment by Plato process on bonding performance of wood : graduation thesis : higher professional studiesZanjkovič, BernardProučevali smo vpliv termične modifikacije lesa s tehnologijo Plato na kakovost lepljenja. Ugotavljali smo tudi učinek modifikacije na nekatere mehanske in fizikalne lastnosti lesa. S standardnimi ... metodami smo ugotavljali strižno trdnost preskušancev (SIST EN 392), delaminacijo lepilnih spojev (SIST EN 291), modul elastičnosti in upogibno trdnost (SIST EN 310), gostoto (SIST EN 323) in vlažnost (SIST EN 322). Preskušali smo 5 lesnih vrst: navadno smreko (Picea abies (L.) Karst.), duglazijo (Pseudotsuga menziessii Franco), topol (Populus ssp.), brezo (Betula pendula) in jelšo (Alnus glutinosa Gaertn.), termično modificiranih s tehnologijo Plato. Za primerjavo smo pri navadni smreki preskušali tudi nemodificirane preskušance (NS), pa modificirane samo do prve, hidrotermične stopnje (HTNS). Preskušance za ugotavljanje kakovosti lepljenja smo lepili s 3 vrstami lepil: melamin-urea-formaldehidnim lepilom (MUF), fenol-resorcinol-formaldehidnim lepilom (PRF) in poliuretanskim lepilom (PUR). Ugotovili smo, da je bila kakovost lepljenja Plato lesa odvisna od uporabljene lesne vrste in predvsem vrste lepila. Trdnost lepilnega spoja je bila najnižja pri preskušancih lepljenih s PRF lepilom, nekoliko višja pri preskušancih lepljenih z MUF lepilom in najvišja pri preskušancih lepljenih s PUR lepilom. Ugotovili smo tudi, da ima Plato les manjšo upogibno trdnost v primerjavi z nemodificiranim lesom. Ravnovesna vlažnost Plato lesa v standardni klimi pa je približno dvakrat nižja od vlažnosti nemodificiranega lesa.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [B. Zanjkovič], 2007Language - slovenianCOBISS.SI-ID - 1601161
Author
Zanjkovič, Bernard
Other authors
Šernek, Milan |
Humar, Miha
Topics
les |
lepljenje lesa |
lepila |
termična modifikacija |
Plato |
wood |
wood bonding |
adhesives |
heat treatment |
Plato
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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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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Zanjkovič, Bernard | |
Šernek, Milan | 16382 |
Humar, Miha | 19106 |
Source: Personal bibliographies
and: SICRIS
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