prikaz prve stranice dokumenta Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat
  Download
PDF 2.61 MB
undergraduate thesis
Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat
završni rad
2023. urn:nbn:hr:167:737915
Čupić, Karla
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Čupić, K. (2023). Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:737915

Čupić, Karla. "Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:737915

Čupić, Karla. "Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:737915

Čupić, K. (2023). 'Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 19 April 2024, https://urn.nsk.hr/urn:nbn:hr:167:737915

Čupić K. Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2023 [cited 2024 April 19] Available at: https://urn.nsk.hr/urn:nbn:hr:167:737915

K. Čupić, "Ispitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:167:737915

Please login to the repository to save this object to your list.
Metadata
TitleIspitivanje toplinske postojanosti mješavine polilaktidna kiselina/natrijev alginat : završni rad
Title (english)Thermal stability analysis of polylactic acid/sodium alginate blend : bachelor thesis
AuthorKarla Čupić
MentorSanja Perinović Jozić (mentor)
Committee memberMiće Jakić (predsjednik povjerenstva)
Committee memberJelena Jakić (član povjerenstva)
Committee memberSanja Perinović Jozić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2023-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Modifikacija polilaktidne kiseline (PLA) provedena je dodatkom natrijevog alginata (NaAlg) s ciljem određivanja njegovog utjecaja na toplinsku postojanost PLA. Uspješno su pronađeni optimalni uvjeti za predmiješanje PLA i NaAlg, ali i uvjeti ekstrudiranja na dvopužnom ekstruderu s kontrarotirajućim vijcima. Neizotermna termogravimetrija (TG) je primijenjena u svrhu istraživanja utjecaja NaAlg na toplinsku postojanost PLA. Polimerne mješavine PLA/NaAlg razgrađuju se u jednom stupnju razgradnje kao čisti ekstrudirani PLA. Utvrđeno je smanjenje toplinske postojanosti mješavine PLA/NaAlg koje je najznačajnije kod mješavine sa svega 2 mas.% NaAlg.
Abstract (english)
The modification of polylactic acid (PLA) was carried out by adding sodium alginate (NaAlg) with the aim of determining its impact on the thermal stability of PLA. Optimal conditions were successfully identified for pre-blending PLA and NaAlg, as well as for extrusion on a twin-screw extruder with counter-rotating screws. Non-isothermal thermogravimetry (TG) was applied to investigate the influence of NaAlg on the thermal stability of PLA. The polymer blends of PLA/NaAlg undergo a one- stage degradation similar to pure extruded PLA. However, a reduction in the thermal stability of the PLA/NaAlg mixture was observed, with the most significant decrease occurring in the mixture containing only 2 wt.% NaAlg.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:737915
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-12-01 07:58:58