Digitální knihovnaUPCE
 

Environmentally Friendly Water-Based Self-Crosslinking Acrylate Dispersion Containing Magnesium Nanoparticles and Their Films Exhibiting Antimicrobial Properties

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Datum publikování

2020

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Vydavatel

MDPI

Abstrakt

A water-based polymeric acrylate dispersion (latex) containing MgO nanoparticles, which had been added at a concentration of 1.5% (with respect to the monomers) during the preparation procedure, was investigated as an environmentally friendly binder for sanitary interior paints. The properties of this new latex were compared to those of a reference system free of the magnesium nanoparticles, synthesized by the same route, i.e., by semi-continuous emulsion polymerization. Tests were made in order to ascertain the mechanical and chemical properties, flash corrosion resistance and antimicrobial effect of the latex films. The results revealed that the new latex containing magnesium nanoparticles provided solvent-resistant coating films having pronounced antimicrobial activity against all the tested bacterial and fungal strains. The desirable antimicrobial properties can be ascribed to the sharp-edged character of magnesium nanoparticles, the peroxidation of lipids and the formation of reactive oxygen species. Moreover, no flash corrosion was formed beneath coating films containing magnesium nanoparticles, which can be attributed to the alkaline action due to the dissolution of a fraction of MgO in latex medium. The results of all of the tests provided evidence of the superiority of the polymeric dispersion with the magnesium nanoparticles to the reference system containing no nanoparticles.

Rozsah stran

"340-1"-"340-16"

ISSN

2079-6412

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Zdrojový dokument

Coatings, volume 10, issue: 4

Vydavatelská verze

https://www.mdpi.com/2079-6412/10/4/340

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open access (CC BY 4.0)

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Klíčová slova

antimicrobial coating, water-based paint, environmentally friendly binder, semi-continuous emulsion polymerization, MgO nanoparticles, antimikrobiální nátěr, vodou-ředitelná barva, ekologické pojivo, semi-kontinuální emulzní polymerace, nanočástice MgO

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Except where otherwised noted, this item's license is described as open access (CC BY 4.0)