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Odpornost proti glivam s silicijevimi snovmi modificiranega lesa : diplomsko delo (visokošolski strokovni študij) = Resistance of wood, modified with silicon substances, to fungi : graduation thesis (higher professional studies)
Smolko, Klavdija
Vzorce rdečega bora in bukve smo modificirali s sredstvi na osnovi silicija. Uporabili smo več različnih raztopin. Da bi ugotovili fungicidno odpornost, smo vzorce izpostavili trem lesnim glivam: ...kletni gobi (Ciniophora puteana), hišni gobi (Poria placenta) in pisani ploskocevki (Trametes versicolor). Ugotavljali smo tudi odpornost na mehko trohnobo, bakterije in modul elastičnosti lesa. Najmanjša izguba modula elastičnosti po modifikaciji in osmih tednih izpostavljenosti zemlji je bila pri borovih vzorcih, modificiranih z nerazredčenim sredstvom metiltrietoksisilana; pri bukvi pa pri vzorcih, modificiranih z nerazredčenim sredstvom tetraetoksisilana. Z vodnim steklom pa smo opravili tudi test izpiranja po EN 84 in skušali ugotoviti, ali čas utrjevanja vpliva na odpornost na glive. Mikroskopske raziskave so pokazale tipične znake trohnob. Ugotovili smo, da sta modifikacijski sredstvi (SMK2100 (100 %) in HS2090 (20 %) vidno prisotni v celicah. Mini-blok test z glivama Coniophora puteana in Poria placenta ni uspel, s Trametes versicolor pa je pokazal, da je najbolj odporno modifikacijsko sredstvo PTEO; tu je bila izguba mase vzorcev manjša od 10 %.
Type of material - undergraduate thesis
; adult, serious
Publication and manufacture - Ljubljana : [K. Smolko], 2006
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