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master's thesis
Karakterizacija materijala i biorazgradnja procesom kompostiranja
Sisak: University of Zagreb, Faculty of Metallurgy, 2019. urn:nbn:hr:115:434875
Ivančić, Antonio
University of Zagreb
Faculty of Metallurgy

Institutional repository: Repository of Faculty of Metallurgy University of Zagreb

Cite this document

Ivančić, A. (2019). Karakterizacija materijala i biorazgradnja procesom kompostiranja (Master's thesis). Sisak: University of Zagreb, Faculty of Metallurgy. Retrieved from https://urn.nsk.hr/urn:nbn:hr:115:434875

Ivančić, Antonio. "Karakterizacija materijala i biorazgradnja procesom kompostiranja." Master's thesis, University of Zagreb, Faculty of Metallurgy, 2019. https://urn.nsk.hr/urn:nbn:hr:115:434875

Ivančić, Antonio. "Karakterizacija materijala i biorazgradnja procesom kompostiranja." Master's thesis, University of Zagreb, Faculty of Metallurgy, 2019. https://urn.nsk.hr/urn:nbn:hr:115:434875

Ivančić, A. (2019). 'Karakterizacija materijala i biorazgradnja procesom kompostiranja', Master's thesis, University of Zagreb, Faculty of Metallurgy, accessed 02 June 2024, https://urn.nsk.hr/urn:nbn:hr:115:434875

Ivančić A. Karakterizacija materijala i biorazgradnja procesom kompostiranja [Master's thesis]. Sisak: University of Zagreb, Faculty of Metallurgy; 2019 [cited 2024 June 02] Available at: https://urn.nsk.hr/urn:nbn:hr:115:434875

A. Ivančić, "Karakterizacija materijala i biorazgradnja procesom kompostiranja", Master's thesis, University of Zagreb, Faculty of Metallurgy, Sisak, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:115:434875

Metadata
TitleKarakterizacija materijala i biorazgradnja procesom kompostiranja
Title (english)Materials characterization and biodegradation by composting
AuthorAntonio Ivančić
MentorVesna Ocelić Bulatović (mentor)
MentorIvan Brnardić (komentor)
Committee memberTamara Holjevac Grgurić (predsjednik povjerenstva)
Committee memberVesna Ocelić Bulatović (član povjerenstva)
Committee memberIvan Brnardić (član povjerenstva)
Committee memberLjerka Slokar Benić (član povjerenstva)
Committee memberAnita Štrkalj (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Metallurgy
Sisak
Defense date and country2019-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu pripremljene su binarne i ternarne mješavine na bazi biorazgradivih polimera polikaprolaktona (PCL), polilaktida (PLA) te termoplastičnog škroba (TPS). Istražena je morfološka struktura pomoću pretražne elektronske mikroskopije (SEM). Toplinska svojstva istražena su diferencijalnom pretražnom kalorimetrijom (DSC), a toplinska stabilnost određena je termogravimetrijskom analizom (TGA). Mehanička svojstva mješavina ispitana su rasteznim ispitivanjem provedenim na mehaničkoj kidalici. Biorazgradivost mješavina provedena je procesom kompostiranja na laboratorijskoj razini. SEM analizom utvrđena je bolja mješljivost binarne PLA/TPS mješavine nego PCL/TPS mješavine, dok je kod PCL/PLA mješavina naglašena dvofazna morfološka struktura koja za posljedicu ima loša mehanička svojstva. Dodatkom TPS-a u binarne PCL/PLA mješavine nije postignuta bolja mješljivost niti je primijećeno kompatibilizirajuće djelovanje TPS –a. DSC analizom utvrđeno je da dodataka TPS-a doprinosi povećava stupanj kristalnosti PLA, a ograničava pokretljivost PCL lanaca što rezultira nižim stupnjem kristalnosti PCL-a u ternarnim PCL/PLA/TPS mješavinama. TGA analiza pokazala je sniženje temperature razgradnje binarnih mješavina dodatkom TPS-a. Umješavanjem TPS-a u PCL/PLA mješavine narušavaju se mehanička svojstva. Potpuna biorazgradnja procesom kompostiranja dobivena je kod uzoraka s većim udjelom PLA. Dodatak TPS-a u binarnih i ternarnim mješavinama pogoduje biorazgradnji, jer naglašena amorfna struktura kao i hidrofilni karakter TPS-a pogoduje mikroorganizmima.
Abstract (english)
In this paper, binary and ternary blends were prepared based on biodegradable polymers polycaprolactone (PCL), polylactide (PLA) and thermoplastic starch (TPS). The morphological structure was investigated using scanning electron microscopy (SEM). Thermal properties were investigated by differential scanning calorimetry (DSC) and thermal stability was determined by thermogravimetric analysis (TGA). The mechanical properties of the blends were tested by tensile testing performed on a mechanical machine. The biodegradability of the blends was carried out at the laboratory level composting process. The SEM analysis revealed a better miscibility with the binary PLA/TPS blend than with the PCL/TPS blend, while the PCL/PLA blend emphasized a two-phase morphological structure resulting in poor mechanical properties. By adding TPS to binary PCL/PLA blends, no better miscibility or compatibility was observed. DSC analysis found that the addition of TPS contributes to the increase in crystallinity of PLA, and limits the mobility of PCL chains resulting in a lower degree of crystallinity of PCL in ternary PCL/PLA/TPS blends. TGA analysis showed a decrease in the decomposition temperature of binary blends by the addition of TPS. By mixing TPS in PCL/PLA blends, the mechanical properties are impaired. Complete biodegradation was obtained for samples with a higher content of PLA. The addition of TPS in binary and ternary blends favours biodegradation, since the amorphous structure as well as the hydrophilic character of TPS favours microorganisms.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:115:434875
Study programmeTitle: Graduate study program Metallurgy
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka metalurgije (magistar/magistra inženjer/inženjerka metalurgije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2019-09-16 11:18:11