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undergraduate thesis
Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida)
završni rad
2020. urn:nbn:hr:167:134432
Bajan, Ivan
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Bajan, I. (2020). Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:134432

Bajan, Ivan. "Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:167:134432

Bajan, Ivan. "Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:167:134432

Bajan, I. (2020). 'Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:134432

Bajan I. Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2020 [cited 2024 December 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:134432

I. Bajan, "Utjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:167:134432

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Metadata
TitleUtjecaj temperature sušenja na pripravu filmova poli(etilen-oksida) : završni rad
Title (english)Influence of drying temperature on preparation of poly(ethylene oxide) films : bachelor thesis
AuthorIvan Bajan
MentorSanja Perinović Jozić (mentor)
Committee memberMarina Zekić (predsjednik povjerenstva)
Committee memberMiće 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 country2020-07-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Priprava poli(etilen-oksid) (PEO) filmova različitih molekulnih masa provedena je izlijevanjem filmova iz vodenih otopina različitih koncentracija, pri čemu su istraživani optimalni uvjeti otapanja polimera u vodi. Uspješno pripravljene otopine podvrgnute su sušenju pri čemu je cilj bio pronaći i optimalne uvjete sušenja, tj. postupak priprave kvalitetnih suhih filmova. Diferencijalna pretražna kalorimetrija (DSC) je primijenjena u istraživanju utjecaja različitih molekulnih masa, debljina filmova i temperatura sušenja u vakuum sušioniku na toplinska svojstva i kristalnost PEO-a. Uočilo se nastajanje različitih kristala PEO-a u istraživanim filmovima, te se može reći da se određene toplinske značajke filmova značajno ne razlikuju. Toplinska postojanost filmova istraživana je primjenom neizotermne termogravimetrije (TG). Filmovi PEO-a razgrađuju se u jednom stupnju razgradnje i nema razlike u toplinskoj postojanosti filmova obzirom na utjecaja različite temperature sušenja u vakuum sušioniku, različitih molekulnih masa i koncentracija polimernih otopina. Ostvaren je glavni cilj istraživanja koji se odnosi na uspješno uklanjanje otapala iz filmova
Abstract (english)
The preparation of poly(ethylene oxide) (PEO) films of different molecular weights was carried out by casting the films from aqueous solutions of different concentrations, where the optimal conditions for dissolving the polymer in water were investigated. Successfully prepared solutions were subjected to drying, with the aim of finding optimal drying conditions, i.e. the process of preparing quality dry films. Differential scanning calorimetry (DSC) was applied to investigate the influence of different molecular weights, film thicknesses and drying temperatures in a vacuum dryer on the thermal properties and crystallinity of PEO. The formation of different PEO crystals was observed in the investigated films, and it can be said that certain thermal characteristics of the films doesn’t differ significantly. The thermal stability of the films was investigated using non-isothermal thermogravimetry (TG). PEO films are digested in one stage of decomposition and there is no difference in the superior film stability due to the influence of different drying temperatures in vacuum drying, different molecular weights and concentrations of polymer solutions. The main goal of the research related to the successful removal of solvents from films has been achieved.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:134432
Study programmeTitle: Chemical Technology, Orientation: Chemical Technology
Study programme type: professional
Study level: undergraduate
Academic / professional title: stručni pristupnik kemijskog inženjerstva (stručni pristupnik kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-09-01 11:03:22