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Utrjevanje utekočinjenega lesa pri lepljenju termično modificirane smrekovine : diplomski projekt = Curing of liquefied wood at bonding of thermally treated spruce : B. Sc. thesisKompolšek, UrbanProučevali smo utrjevanje lepila iz utekočinjenega lesa. Uporabili smo les smreke, ki je bil termično modificiran pri temperaturah 150, 170, 190, 210 in 230 °C, ter lepilo iz utekočinjenega lesa. ... Meritve smo izvajali na reometru Ares G2, kjer smo namesto standardnih vzporednih diskov iz aluminija uporabili lesene diske. Diski so bili izdelani s pomočjo CNC-stroja in krožnega žagalnega stroja. Za meritve smo uporabili oscilatorni test z večvalovno tehniko merjenja. Uporabili smo diske iz nemodificirane in termično modificirane smrekovine, klimatizirane pri 65 % relativni zračni vlažnosti in temperaturi 20 °C, ter diske iz termično modificirane smrekovine, izpostavljene različnim relativnim zračnim vlažnostim. Ugotovili smo, da pri nemodificiranemu lesu lepilo iz utekočinjenega lesa potrebuje dlje časa, da želira. Pri višjih stopnjah modifikacije lesa je bil čas želiranja krajši. Točka zamreženja se je pri vzorcih z nemodificiranim in modificiranim lesom pojavila pri enakih časih, kar pomeni, da stopnja modifikacije ni vplivala na zamreževanje lepila iz utekočinjenega lesa. Vpliv je imela predvsem vlaga v lesu in delež hlapnih komponent v lepilu iz utekočinjenega lesa; to pomeni, da višja vlaga lesa podaljša čas, ki ga lepilo potrebuje, da zamreži.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [U. Kompolšek], 2012Language - slovenianCOBISS.SI-ID - 2044297
Author
Kompolšek, Urban
Other authors
Šernek, Milan |
Pohleven, Franc
Topics
utekočinjen les |
reometer |
termična modifikacija |
elastični strižni modul |
liquefied wood |
rheometer |
thermal modification |
storage modulus
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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Kompolšek, Urban | |
Šernek, Milan | 16382 |
Pohleven, Franc | 05248 |
Source: Personal bibliographies
and: SICRIS
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