Faculty of Mechanical Engineering, Lj. (FSLJ)
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Reologija polimerno - kovinskih kompozitov z visoko koncentracijo kovinskih delcev : zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni programKopušar, TimVisoko polnjeni kompoziti so običajno polimeri z visoko koncentracijo organskih ali anorganskih delcev. Matrici polimera se dodajo trdni delci in novo nastali material prevzame lastnosti obeh snovi. ... Razvoj na tem področju teži k optimalnemu kombiniranju lastnosti obeh sestavin. Kombiniranje polimerov s trdnimi delci ima tako velik industrijski pomen, saj predstavlja učinkovit način pridobitve novih materialov z želenimi mehanskimi, termičnimi, magnetnimi, ipd. lastnostmi. Cilj zaključne naloge je določiti vpliv različnih koncentracij kovinskih magnetnih delcev v polimeru poliamida na termične in reološke lastnosti kompozitnega materiala. Pod vplivom konstantnih merilnih pogojev temperature in frekvence obremenitve smo določali stabilnost materiala v izbranem časovnem intervalu. Pri tem je potrebno določiti linearno viskoelastično območje materiala, kjer je odziv polimera sorazmeren in linearen vsiljeni strižni deformaciji. Določili smo tudi vpliv koncentracije kovinskih delcev in naraščajoče strižne napetosti na viskoznost materiala ter vpliv temperature na viskoelastične lastnosti materiala v temperaturnem območju od 170 do 240°C. Ugotovili smo, da koncentracija magnetnih delcev vpliva na zmanjšanje specifične toplote materiala. Določili smo točko taljenja in steklastega prehoda za preiskovane materiale. Ugotovili smo, da višja kot je koncentracija kovinskih delcev v polimeru, krajše je območje linearnega odziva polimera, višja je njegova viskoznost ter večje so vrednosti elastičnega in viskoznega modula materiala.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [T. Kopušar], 2021Language - slovenianCOBISS.SI-ID - 84482051
Author
Kopušar, Tim
Other authors
Slemenik Perše, Lidija
Topics
diplomske naloge |
polimeri |
visoko polnjeni kompoziti |
poliamidi |
viskoelastičnost |
reološke lastnosti |
viskoznost |
thesis |
polymers |
highly filled composites |
polyamide |
viscoelasticity |
rheological properties |
viscosity
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UN 0000001540 IN: 80001540 UN 1540 IN: 80001540 |
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Database name | Field | Year |
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Kopušar, Tim | ![]() |
Slemenik Perše, Lidija | 22701 |
Source: Personal bibliographies
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