BF, Dept. of Wood Technology, Lj. (BFLES)
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Lastnosti termično modificiranega lameliranega lesa za stavbno pohištvo : diplomski projekt = Properties of thermally treated laminated wood for doors and windows : B. Sc. thesisKoren, Jure, 1994-Okna kot del stavbnega pohištva, ki je prisotno na vsakem objektu, so lahko lesena, PVC ali aluminijasta. Lesena okna dajejo zgradbam pridih narave, niso pa tako trajna in odporna. Zaradi tega so se ... na trgu pojavila okna iz termično modificirane smrekovine, ki zagotavljajo večjo odpornost za nižjo ceno od oken, izdelanih iz macesna ali hrasta. Termična modifikacija smrekovine poteka v inertni atmosferi pri temperaturah do 240 °C. Na ta način les postane odpornejši, zniža se mu ravnovesna vlažnost, poslabšajo pa se določene druge lastnosti, npr. poveča se krhkost, zmanjša upogibna trdnost, lepljenje in površinska obdelava sta otežena. V diplomskem delu smo preverjali upogibno trdnost lepljenega lameliranega lesa, ki se uporablja za izdelavo oken, ter strižno trdnost lepilnih spojev. Lepljence smo zlepili s tremi različnimi lepili (Rakoll GXL 4 Plus, Mekol D3 in Purbond HB 440) v štiri različne sestave: prvi lepljenec je bil iz treh nemodificiranih smrekovih lamel, drugi iz treh modificiranih, tretji je imel zunanji dve modificirani in srednjo nemodificirano, četrti pa eno zunanjo lamelo modificirano ostali dve pa ne. Največja upogibna in strižna trdnost je bila dosežena pri nemodificiranih lepljencih, zlepljenih z lepilom Purbond. Tudi ostali dve lepili sta dosegli dobre rezultate, vendar je bila trdnost nekoliko nižja. Na podlagi meritev priporočamo lepljenje termično modificiranih elementov z enim od PVAc lepil, saj je njuna cena nižja in kakovost zlepljenosti zadovoljiva.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Koren], 2016Language - slovenianCOBISS.SI-ID - 2636937
Author
Koren, Jure, 1994-
Other authors
Šernek, Milan |
Kariž, Mirko
Topics
lameliran termično modificiran les |
upogibna trdnost |
strižna trdnost |
laminated thermally treated wood |
bending strength |
shear strength
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Knjižnica BF za lesarstvo dv1 0000000073 IN: 020160146 Knjižnica BF za lesarstvo dv1 73 IN: 020160146 |
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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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Koren, Jure, 1994- | ![]() |
Šernek, Milan | 16382 |
Kariž, Mirko | 29227 |
Source: Personal bibliographies
and: SICRIS
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