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Vpliv omrežja ogljikovih nanocevk v polietilenu na mehanske lastnosti nanokompozitov : zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni programGjurasek, NikoPolietilen je zaradi svojih mehanskih in kemičnih lastnosti eden najpogosteje uporabljanih polimernih materialov, tudi za matrični material kompozitov. V kombinaciji z ogljikovimi nanocevkami, ki ... zagotavljajo izredne karakteristike, tvorijo revolucionarne nanokompozite, katere je možno aplicirati v najzahtevnejša področja današnje znanosti. V sklopu naloge smo obravnavali vpliv omrežja ogljikovih nanocevk na mehanske lastnosti, kjer smo z uporabo nanoindenterja določili elastični modul, trdoto, ter površinske lastnosti, kot so hrapavost ter odpornost na praske. Teste smo izvedli na vzorcih polietilena nizke in visoke gostote z različno vsebnostjo enostenskih ogljikovih nanocevk. Rezultati so pokazali da omrežje (geometrijski preplet nanocevk) nastane pri ?0.7% in je glavni faktor pri ojačitvi oziroma izboljšanju mehanskih lastnosti nanokompozitov. V primeru LDPE-nanokompozitov se elastični modul izboljša za 250% ter trdota za 225%, v primeru HDPE-nanokompozitov pa se omenjeni lastnosti izboljšata za 122% in 130%. Ugotovljeno je bilo tudi to, da se hrapavost z dodajanjem nanopolnila poveča za 100nm, tako v primeru LDPE- kot HDPE-nanokompozitov.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [N. Gjurasek], 2022Language - slovenianCOBISS.SI-ID - 124721411
Author
Gjurasek, Niko
Other authors
Slemenik Perše, Lidija
Topics
diplomske naloge |
ogljikove nanocevke |
nanokompoziti |
mehanske lasnosti |
nastanek omrežja |
nanoindentacija |
thesis |
carbon nanotubes |
nanocomposites |
mechanical properties |
networking |
nanoindentation
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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Gjurasek, Niko | |
Slemenik Perše, Lidija | 22701 |
Source: Personal bibliographies
and: SICRIS
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