BF, Dept. of Wood Technology, Lj. (BFLES)
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Izboljšanje upogibne trdnosti furnirnih plošč z dodajanjem sintetičnih vlaken : diplomsko delo - univerzitetni študij = Improvement of bending strength of veneer plywood adding synthetic fibres : graduation thesis - university studiesSever, SebastjanRaziskovali smo lastnosti različnih furnirnih plošč, v katerih smo kombinirali topolov in bukov furnir ter dodajali sintetično mrežo. Uporabili smo 3 standardne kombinacije, in sicer "combo" (vsaka ... druga plast plošče je bila topolova, vmes je bila bukova), "sendvič" (vrhnji plasti plošče sta bili bukovi, vmes so bile topolove) in "čisto topolovo" furnirno ploščo (vsi furnirji so bili iz topolovine). Dodali smo jim 2 tipa sintetične mreže iz steklenih vlaken. Prvi tip te mreže iz steklenih vlaken, ki je bil impregniran z melaminsko smolo, smo dodali na zunanjo plast furnirne plošče. Neimpregnirano sintetično mrežo iz steklenih vlaken pa smo dodali med prvi in drugi sloj furnirja v plošči. Glavni namen raziskave je bilo iskanje kombinacije z največjo upogibno trdnostjo plošče in kombinacije z najboljšim razmerjem trdnost-gostota plošče. Preskušancem z 9 različnimi kombinacijami smo skladno s standardi SIST EN 310, SIST EN 323 in SIST EN 326-1 izmerili upogibno trdnost, modul elastičnosti in gostoto. Posameznim uporabljenim sintetičnim mrežam smo izmerili tudi natezno trdnost. Prišli smo do zaključka, da ima zaradi večjega deleža bukovega furnirja največjo upogibno trdnost sestava "combo". Ugotovili smo, da je najbolj primerno razmerje trdnost-gostota v sestavi "sendvič" in da fasadna sintetična mreža iz steklenih vlaken brez impregnacije v lepilnem spoju zmanjšuje upogibno trdnost furnirne plošče. Z melaminsko smolo impregnirana fasadna sintetična mreža iz steklenih vlaken izboljša upogibno trdnost furnirnih plošč le z dovolj velikim vtisom ali oprijemom na furnir.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [S. Sever], 2010Language - slovenianCOBISS.SI-ID - 1816713
Author
Sever, Sebastjan
Other authors
Šernek, Milan |
Medved, Sergej
Topics
vezan les |
furnirna plošča |
sintetična mreža |
steklena vlakna |
upogibna trdnost |
plywood |
veneer board |
synthetic net |
glass fibre |
bending strength |
bending strength
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Knjižnica BF za lesarstvo dn 0000000899 IN: 020100105 Knjižnica BF za lesarstvo dn 899 IN: 020100105 |
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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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Sever, Sebastjan | ![]() |
Šernek, Milan | 16382 |
Medved, Sergej | 15410 |
Source: Personal bibliographies
and: SICRIS
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