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Termične in mehanske lastnosti polimernega nanokompozita s silicijevim dioksidom : zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni programModic, NikaNanotehnologije in nanokompoziti so del nanoznanosti, ki je postala eno izmed ključnih področij zanimanja, ko govorimo o znanstvenih in tehnično-industrijskih dejavnostih. Polimerni nanokompoziti so ... materiali, ki jih sestavljata polimerna matrica in polnilo, ki ima vsaj eno dimenzijo na nanometrski skali med 1 𝑛𝑚 in 100 𝑛𝑚 (nanopolnilo). Glede na lastnosti polimerov in nanopolnil lahko dobimo nanokompozite z najrazličnejšimi lastnostmi. V tem zaključnem delu je bil cilj primerjati termične in mehanske lastnosti štirih vzorcev, z različnimi masnimi razmerji posameznih komponent nanokompozita PVDFHFP/PVP/SiO2 in izbrati optimalno razmerje glede na proučevane lastnosti. Termično analizo smo izvedli z diferenčno dinamično kalorimetrijo, s pomočjo katere smo lahko izračunali in primerjali tudi deleže kristaliničnosti. Z enoosnimi nateznimi testi smo vzorcem določili Youngove module, z nanoindentacijo pa smo izvedli meritve trdote in modula elastičnosti. Pri tem smo uporabili nanoindenter, ki omogoča dinamične meritve z uporabo metode nepretrganega merjenja trdote. Na koncu smo z optičnim mikroskopom primerjali še površine vzorcev. Ugotovili smo, da dodatek silicijevega dioksida glede na film iz polimerne osnove PVDF-HFP/PVP poveča delež kristaliničnosti, modul elastičnosti in tudi trdoto nanokompozita. Glede na rezultate smo za optimalno razmerje masnih deležev med posameznimi komponentami izbrali vzorec PVDF-HFP/PVP/SiO2 = 70 : 20 : 10.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [N. Modic], 2024Language - slovenianCOBISS.SI-ID - 196221443
Author
Modic, Nika
Other authors
Slemenik Perše, Lidija
Topics
polimeri |
polimerni nanokompoziti |
silicijev dioksid |
termične lastnosti |
mehanske lastnosti |
polymers |
polymer nanocomposites |
silicon dioxide |
thermal properties |
mechanical properties
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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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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Modic, Nika | |
Slemenik Perše, Lidija | 22701 |
Source: Personal bibliographies
and: SICRIS
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