BF, Dept. of Wood Technology, Lj. (BFLES)
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Lepljenje furnirnih vezanih plošč z lepili na osnovi tanina : diplomsko delo = Bonding of plywood with the tannin-based adhesives : B. Sc. thesisLap, MartinV lesni industriji za lepljenje lesa večinoma uporabljajo sintetična lepila, ki so lahko človeku in okolju škodljiva. V diplomski nalogi smo primerjali uveljavljeno urea-formaldehidno lepilo z lepili ... na osnovi tanina. Taninskim lepilom smo dodali različne dodatke, s katerimi smo skušali izboljšali kakovost zlepljenosti. Uporabili smo 6 različnih lepil in z vsakim lepilom zlepili po dve trislojni vezani plošči iz 3 mm debelega bukovega luščenega furnirja. Lepilno mešanico smo pripravili za vsako vrsto plošč posebej. Nanos lepilne mešanice je znašal 250 g/m2. Vezane plošče smo stiskali 15 minut pri temperaturi 150 °C in specifičnem tlaku 18 barov. Vezane plošče smo nato razžagali na preizkušance standardnih dimenzij. Preizkušance smo testirali na upogibno trdnost in modul elastičnosti ter strižno trdnost. Iz preizkušancev za upogibno trdnost smo odvzeli preizkušance za ugotavljanje gostote in vlažnosti vezanih plošč. Pred testiranjem smo vse preizkušance klimatizirali v standardni klimi, polovico preizkušancev za testiranje strižne trdnosti pa smo dodatno za 24 ur potopili v vodo. Z raziskavo smo delno potrdili hipotezo pri kateri smo predvidevali, da lahko z lepili na osnovi tanina zlepimo furnirne vezane plošče, ki bodo po kakovosti zlepljenosti in po upogibnih lastnostih primerljive klasično izdelanim vezanim ploščam z urea-formaldehidnim lepilom. Vezane plošče lepljene s taninskim lepilom z dodatkom natrijevega hidroksida so pri vseh testiranjih razen pri strižni trdnosti imele najbolj primerljive lastnosti s ploščami lepljenimi z urea-formaldehidnim lepilom.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Lap], 2021Language - slovenianCOBISS.SI-ID - 76891395
Author
Lap, Martin
Other authors
Šernek, Milan |
Šega, Bogdan
Topics
taninsko lepilo |
urea-formaldehidno lepilo |
lepljenje |
upogibna trdnost |
strižna trdnost |
furnirna vezana plošča |
tannin-based adhesive |
urea-formaldehyde adhesive |
bonding |
bending strength |
shear strength |
plywood
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BF, Dept. of Wood Technology, Lj. |
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Knjižnica BF za lesarstvo dv1 0000000155 IN: 020210078 Knjižnica BF za lesarstvo dv1 155 IN: 020210078 |
available - outside loan, loan period: 1 months
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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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Lap, Martin | |
Šernek, Milan | 16382 |
Šega, Bogdan | 13057 |
Source: Personal bibliographies
and: SICRIS
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