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Biorazgradnja kirurških mask z glivami [Elektronski vir] : magistrsko delo = Fungal biodegradation of surgical masks : M. Sc. ThesisGolmajer Zima, AndražV magistrski nalogi smo želeli dokazati razkroj plastike z glivami. Uporabili smo kirurške maske, ki so narejene iz polipropilena ter jih v 16 tednih izpostavitve želeli razkrojiti z Aspergillus ... niger, Trametes versicolor in Pleurotus ostreatus. Vzorce smo pripravili na dva načina: z razrezom na velikost 2×7 cm in z mletjem s pomočjo suhega ledu. Polovico razrezanih vzorcev smo pred izpostavitvijo glivam izpostavili UV svetlobi za 168 ur. Cilji naloge so bili dokazati, da so določene glive zmožne razkrojiti polipropilen in da UV predobdelava poveča razkroj. Rezultati FT-IR analize so pokazali zmanjšane signale med valovnimi števili 3000 in 2800 cm-1 in okoli valovnih števil 1000 cm-1, kar nakazuje na začetek razkroja CH skupin polipropilena. Rezultati natezne trdnosti so pokazali, da sta glivi Aspergillus niger in Pleurotus ostreatus uspešno zmanjšali natezno trdnost srednje, najšibkejše plasti maske, poleg tega je UV svetloba uspešno zmanjšala natezno trdnost srednje plasti. Pri merjenju gostote vzorca kot poroznega materiala z napravo GeoPyc, so imeli kontrolni vzorci predhodno obdelani z UV svetlobo nižjo gostoto, kot kontrolni vzorci brez UV predobdelave. Dokazali smo, da so določene glive sposobne razgraditi polipropilen in da predobdelava z UV pomaga pri razkroju polipropilena.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [A. Golmajer Zima], 2023Language - slovenianCOBISS.SI-ID - 170623747
Author
Golmajer Zima, Andraž
Other authors
Kržišnik, Davor |
Poljanšek, Ida |
Medved, Sergej
Topics
glive |
kirurške maske |
biorazgradnja |
plastika |
polipropilen |
fungi |
surgical masks |
biodegradation |
plastic |
polypropylen
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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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Golmajer Zima, Andraž | |
Kržišnik, Davor | 37425 |
Poljanšek, Ida | 12041 |
Medved, Sergej | 15410 |
Source: Personal bibliographies
and: SICRIS
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