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Tehnika
2018, vol. 73, br. 5, str. 621-625
jezik rada: srpski
vrsta rada: izvorni naučni članak
doi:10.5937/tehnika1805621D

Creative Commons License 4.0
Ispitivanje mikrotvrdoće nezasićenih poliestarskih smola sa ojačanjima na bazi aluminijum oksida
Univerzitet u Beogradu, Tehnološko-metalurški fakultet

e-adresa: drah_20017@yahoo.com

Projekat

Razvoj opreme i procesa dobijanja polimernih kompozitnih materijala sa unapred definisanim funkcionalnim svojstvima (MPNTR - 34011)

Sažetak

Komercijalni aluminijum oksid u formi viskersa (Al2O3 w) i sintentizovane Al2O3 čestice proizvedene sol-gel tehnikom (Al2O3 m) korišćene su kao ojačanja nezasićenih poliestarskih smola (NZPE). Pri-premljeni su kompozitni materijali sa udelom ojačanja od 0,1 mas. %, 0,25 mas. %, 0,5 mas. %, 1,0 mas. %. i 2,5 mas. %. Strukturna analiza korišćenih ojačanja i dobijenih kompozita NZPE/Al2O3 izvršena je FTIR spektroskopijom. Morfologija korišćenih ojačanja ispitana je pomoću skenirajućeg elektronskog mikroskopa (SEM). Ispitivanje mikrotvrdoće urađeno je Vikersovom metodom. Dobijeni rezultati su pokazali da je povećanje mikrotvrdoće kod kompozita NZPE/Al2O3 w do 66,4% a kod kompozita NZPE/Al2O3 m do 52,3% u odnosu na čistu poliestarsku matricu NZPE.

Ključne reči

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