BF, Dept. of Wood Technology, Lj. (BFLES)
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Lepljenje lesa z uporabo odpadnega polietilena [Elektronski vir] : diplomsko delo = Gluing of wood using waste polyethylene : B. Sc. ThesisŠvajger, ČrtUporaba plastičnih izdelkov je vse bolj popularna, zaradi česar se tudi odpadna plastika po svetu vse bolj kopiči. Odpadno plastiko lahko recikliramo ali ponovno uporabimo, najpomembneje pa je, da ... preprečimo nesmiselno uporabo le-te. Vse bolj pomemben je koncept 5R, ki temelji na petih korakih: preprečevanje, ponovna uporaba, recikliranje, predelava in odstranjevanje. V naši raziskavi smo les lepili z odpadnimi vrečkami iz polietilena. Po standardu SIST EN 205:2016 smo nato ugotavljali strižno trdnost lepilnih spojev. Zanimal nas je vpliv temperature lepljenja in ohlajanja na lepilni spoj. V prvem delu raziskave smo bukove lamele lepili pri temperaturi 175 °C in 150 °C ter jih ohlajali bodisi v stiskalnici na 25 °C ali pa jih takoj vzeli iz stiskalnice po lepljenju pri 175 °C in 150 °C. V drugem delu raziskave smo ugotavljali vpliv števila slojev plastičnih vrečk na strižno trdnost lepilnega spoja. Testirali smo strižno trdnost pri enem, dveh in treh slojih. Ugotovili smo, da je ohlajanje lepilnega spoja po lepljenju pri 150 °C pozitivno vplivalo na končno trdnost, medtem ko je bil pri 175 °C vpliv negativen. Najvišjo povprečno strižno trdnost, 6,3 N/mm2, smo ugotovili pri ohlajenih preizkušancih, lepljenih pri 150 °C. Ugotovili smo tudi, da večje število slojev pozitivno vpliva na strižno trdnost lepilnega spoja. Pri treh slojih iz polietilenskih vrečk je bila strižna trdnost najvišja, najnižja pa je bila pri enem sloju.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [Č. Švajger], 2022Language - slovenianCOBISS.SI-ID - 123911427
Author
Švajger, Črt
Other authors
Šernek, Milan |
Poljanšek, Ida
Topics
plastika |
polietilen |
recikliranje |
odpadki |
lepila |
plastics |
polyethylene |
recycling |
waste |
adhesives
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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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Švajger, Črt | ![]() |
Šernek, Milan | 16382 |
Poljanšek, Ida | 12041 |
Source: Personal bibliographies
and: SICRIS
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