Anticorrosion and Antibacterial Properties of Al NP–Epoxy Nanocomposite Coating on Grey Cast Iron

In this study, different concentrations of aluminium nanoparticles (Al NP) were incorporated into epoxy resin and epoxy paint. Here, we present a detailed systematic study of different methods of incorporating inorganic nanoparticles into epoxy coating. This work aims to obtain an epoxy coating with...

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Bibliographic Details
Published in:Coatings (Basel) 2023-05, Vol.13 (5), p.898
Main Authors: Samardžija, Marina, Kurtela, Marin, Vuković Domanovac, Marija, Alar, Vesna
Format: Article
Language:English
Subjects:
Aluminum
Antibacterial agents
Bacteria
Cast iron
Chemical properties
Coatings
Corrosion and anti-corrosives
Corrosion prevention
Corrosion resistance
E coli
Epoxy coatings
Epoxy resins
Humidity
Mechanical properties
Nanocomposites
Nanoparticles
Particle size
Pathogens
Physical properties
Polyamines
Protective coatings
Scanning electron microscopy
Temperature
Water mains
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Summary:In this study, different concentrations of aluminium nanoparticles (Al NP) were incorporated into epoxy resin and epoxy paint. Here, we present a detailed systematic study of different methods of incorporating inorganic nanoparticles into epoxy coating. This work aims to obtain an epoxy coating with anticorrosion and antibacterial properties. The physical properties of coatings such as thickness, hardness, colour, and adhesion did not change with the addition of nanoparticles. According to the SEM and EDS analyses, the distribution effect of Al NPs in epoxy coating was better with ultrasonic homogenisation than with mechanical stirring. The EIS and SECM measurements were used to investigate corrosion resistance. The coating with 1.0 wt.% Al NP showed the best physical and chemical properties. SECM examination indicated that nanoparticles in epoxy resin increase the protection efficiency by 25.75% and in the epoxy paint by 40.89%. The results also showed the antibacterial activity of aluminium nanoparticles by inhibiting the growth of biofilm-forming bacteria such as P. aeruginosa and B. subtilis.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings13050898