Vpliv dodane nanofibrilirane celuloze na mehanske lastnosti polimera PLA : diplomsko delo - visokošolski strokovni študij

Martinčič, Jurij (author), Poljanšek, Ida (mentor), Oven, Primož (reviewer)

Cilj diplomske naloge je bila priprava bionanokompozita iz nanofibrilirane celuloze (NFC) in polimlečne kisline (PLA). Osredotočili smo se na proučevanje vpliva dodatka NFC na mehanske lastnosti bionanokompozita. Zaradi morfologije nanofibrilirane celuloze smo pričakovali boljše mehanske lastnosti kompozita glede na PLA. Določili smo optimalno količino dodane NFC polimeru PLA za doseganje boljših mehanskih lastnosti. V nadaljevanju smo preučili tudi vpliv acetilirane NFC na mehanske lastnosti. Ugotovili smo, da z dodatkom 2,5 % acetilirane NFC (ANFC) dosežemo najboljše mehanske lastnosti pripravljenega bionanokompozita. Z dodatkom ANFC polimeru PLA pridobimo filme bionanokompozitov z minimalno zmanjšano transparentnostjo.

• Language: Slovenian
• Keywords: celuloza, nanoceluloza, biokompoziti, PLA
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: J. Martinčič
• Year: 2016
• Number of pages: IX, 41 f.
• PID: 20.500.12556/RUL-158882
• UDC: 630*813
• COBISS.SI-ID: 2648201
• Publication date in RUL: 21.06.2024

Secondary language

• Language: English
• Title: Influence of added nanofibrillated cellulose on mechanical properties of polymer PLA : graduation thesis - higher professional studies

Abstract

The aim of the thesis was to prepare bionanocomposite from nanofibrillated cellulose (NFC) and polylactic acid (PLA). We have focused on studying the impact of the additive on the mechanical properties of the NFC bionanocomposite. Due to the morphology of the NFC we expected better mechanical properties of the composite according to the PLA. We have determined the optimal amount of the added NFC to the PLA in order to obtain better mechanical properties. Furthermore, we examine the impact of acetylated NFC to the mechanical properties. We have found that with the addition of 2,5 % of acetylated NFC (ANFC) the best mechanical properties of the prepared bionanocomposite were achieved. With the addition of ANFC to the polymer PLA we obtained bionanocomposite films with minimal reduction in transparency.

• Keywords: cellulose, nanocellulose, biocomposites, PLA