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Vpliv koncentracije termokromnega dodatka na fizikalne lastnosti biopolimera polilaktične kisline : diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje StrojništvoJež, JakaTermokromizem je pojav, ki povzroči spremembo barve v odvisnosti od temperature. Sprememba barve materiala se pojavi zaradi termokromnega dodatka, ki je vdelan v osnovni material. Termokromne dodatke ... delimo na organska barvila (levko sistem), anorganske spojine ter konjugirane polimere. V diplomskem delu smo obravnavali sistem levko barvil, ki ponuja možnost izbiranja barve materiala in prilagajanje temperature pri kateri spremenijo barvo. S pomočjo tehnologije ekstrudiranja smo pripravljeno zmes osnovnega materiala (PLA) in termokromnega dodatka pretvorili v filament in ga uporabili za izdelavo 3D tiskanih vzorcev. Vzorce in filament smo uporabili za različne analize. Opravili smo reološko karakterizacijo taline, testirali smo termične lastnosti filamentov, izvedli izpostavo vzorcev realnim pogojem, izmerili geometrijo 3D tiskanih vzorcev in določili barvne spremembe 3D tiskanih vzorcev v odvisnosti od temperature. Ugotovili smo, da na viskoznost močno vpliva temperatura tiska, geometrija vzorcev pa močno zavisi od koncentracije termokromnega dodatka. Potrdili smo, da sončna svetloba degradira vzorce in povzroči razbarvanost.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Jež], 2021Language - slovenianCOBISS.SI-ID - 77101827
Author
Jež, Jaka
Other authors
Slemenik Perše, Lidija
Topics
diplomske naloge |
polimeri |
termokromizem |
polilaktična kislina |
termokromni dodatki |
3D tisk |
polimerni filament |
thesis |
polymers |
thermochromism |
polylactic acid |
thermochromic additives |
3D print |
polymer filament
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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Jež, Jaka | |
Slemenik Perše, Lidija | 22701 |
Source: Personal bibliographies
and: SICRIS
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