BF, Dept. of Wood Technology, Lj. (BFLES)
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Uporaba odpadne plastike za izdelavo lepil za lepljenje lesa = Use of waste plastics for the preparation of adhesives for wood bondingŠernek, Milan ...Odpadne plastike je čedalje več, zato poskušamo najti različne načine njenega recikliranja in ponovne uporabe. Reciklirani termoplastični polimeri predstavljajo zanimiv potencial za izdelavo lepil, ... zato je bil cilj naše preliminarne raziskave proučiti primernost odpadnega polistirena za izdelavo lepil za lepljenje lesa. Lepilne mešanice smo izdelali tako, da smo odpadne polistirenske lončke (L) in žličke (Ž) za kavo razrezali na manjše koščke in jih ločeno raztopili v 5 različnih topil: butil acetat (BA), dimetilformamid (DMF), tetrahidrofuran (THF), limonen (L) in aceton (AC). Z njimi smo izdelali lepljence iz dveh bukovih lamel (Fagus sylvatica L.), ki smo jih 10 minut stiskali v hidravlični stiskalnici pri temperaturi 150 °C in tlaku 12 barov. Za ugotavljanje kakovosti zlepljenosti smo izvedli strižni preizkus z univerzalnim testirnim strojem Zwick/Roell Z005. Ugotovili smo, da so preizkušanci, zlepljeni z lepilno mešanico Ž-DMF, dosegli povprečno strižno trdnost 6,5 N/mm2, preizkušanci, zlepljeni z L-DMF, pa 3,8 N/mm2. Vsi ostali preizkušanci so izkazovali nižjo trdnost lepilnega spoja oziroma so večinoma razpadli že po vročem stiskanju ali kasneje med žaganjem v preizkušance. V nadaljnjih raziskavah bomo obetajoči lepilni mešanici modificirali in optimizirali parametre stiskanja z namenom doseganja kakovosti zlepljenosti, ki ustreza standardnim zahtevam za plastomerna lepila za notranjo uporabo.Source: Les = Wood. - ISSN 0024-1067 (Letn. 69, št. 2, 2020, str. 107-116)Type of material - article, component part ; adult, seriousPublish date - 2020Language - slovenianCOBISS.SI-ID - 44805635
Author
Šernek, Milan |
Štolcer, Vanja |
Repič, Rožle |
Šega, Bogdan
Topics
les |
lepilo |
odpadna plastika |
polistiren |
strižna trdnost |
ponovna uporaba plastike |
ponovna uporaba plastike |
wood |
adhesive |
waste plastics |
polystyrene |
shear strength |
reuse of plastic |
reuse of plastic
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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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Šernek, Milan | 16382 |
Štolcer, Vanja | |
Repič, Rožle | 51944 |
Šega, Bogdan | 13057 |
Source: Personal bibliographies
and: SICRIS
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