sažetak izlaganja sa skupa
In this work, aluminium nanoparticles (Al NP) as fillers were homogenized with epoxy matrix to form multifunctional Al NP-epoxy nanocomposites on plates of gray cast iron.
The samples were analyzed with SEM observation and EDX to evaluate and characterize the uniform distribution of Al NP in the nanocomposites. The effect of corrosion protection performance of nanocomposite was analyzed using scanning electrochemical microscopy (SECM) and electrochemical impedance spectroscopy (EIS). This analysis confirms improvement of the corrosion resistance of nanocomposite in comparison with epoxy matrix without nanoparticles. The introduction of Al NP into epoxy matrix the mechanical properties has been slightly increase. Furthermore, the antimicrobial test indicated that the nanocomposites had bactericidal activity against Pseudomonas eruginosa and Bacillus subtilis bacteria. The small size of the aluminium particles and their rapid oxidation enable this nanocomposite to possess dual properties. Nanocomposites improve mechanical, anticorrosive and antimicrobial properties which means that they provide the better resistance to external mechanical influences and effectively prevent corrosion and bacterial growth.
aluminium nanoparticles; epoxy matrix; corrosion; antibacterial properties; SECM
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