20.500.12556/RUL-609 Vpliv gostote zunanjega sloja iverne plošče na njeno trdoto diplomski projekt Influence of particleboard surface layer density on its hardness B. Sc. thesis Danes si težko predstavljamo življenje brez lesnih plošč, saj so nepogrešljiv material tako pri izdelavi pohištva kakor tudi pri uporabi v konstrukcijah. Proučevali smo vpliv strukture iverne plošče na njeno trdoto, predvsem z vidika vpliva gostote posameznega sloja iverne plošče. Izdelali smo 3 iverne plošče z različnimi deleži slojev, ter jim izmerili gostotni profil, trdoto površine, upogibno trdnost, odpornost proti udarcu trdega telesa ter debelinski nabrek. Ugotovili smo, da gostota zunanjega in srednjega sloja vpliva na trdoto površine, medtem ko korelacije med gostoto posameznega sloja in debelinskim nabrekom nismo zaznali. Najboljše lastnosti je imela plošča z enakim razmerjem srednjega ter zunanjega sloja. Life without wood-based panels would nowadays be difficult to imagine because they are important for furniture and construction usage. Particleboard structure was researched to establish the effect on its hardness, regarding the influence of individual layer density. 3 particleboards with different share of layers were produced. Vertical density distribution, hardness, bending strength, hard body impact resistance and thickness swelling were determined. After the determination of the density profile the results showed that the density of an individual layer influenced the hardness, while thickness swelling was not influenced by surface and/or core layer density. It was found out that the board with the same share of surface and core layer had the best properties. iverje iverna plošča sloji gostota trdota particles particle board layers density hardness true false false [M. Klopčič] Slovenski jezik Angleški jezik Diplomsko delo 2014-07-11 12:26:20 2014-07-11 12:26:20 2025-08-08 13:19:17 0000-00-00 00:00:00 2011 0 Ljubljana 0 IX, 22 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*862.2 1958025 dv1_klopcic_matevz.pdf dv1_klopcic_matevz.pdf 1 CB2B652510B3DF2AEDE2C7381EBAFE5F 0a8e75510c66ab6d6b5b26ad96779c1c5c58a2989e6606046a6e0159e0570514 65165520-a1b9-11eb-a523-00155dcfd717 20.500.12556/rul/d214acc2-ccfb-48ed-952d-0281733ec550 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=132426 Biotehniška fakulteta 0 0 0