Studies on nano magnesium oxide modified acrylic resin in antibacterial coating application

The present study is related to the impact of nano magnesium oxide modified hybrid acrylic resin as a dual functional component in coating applications. Such nano magnesium oxide modified hybrid acrylic acts as a film former as well as antimicrobial agent. Nano magnesium oxide modification into acrylic resin was carried out through chemical modification with specially designed acrylic resin and confirmed by IR spectroscopic and SEM analysis. The effect of nano magnesium oxide modified hybrid acrylic resin was evaluated in water-based paint composition and compared against acrylic paint containing commercial biocides. The results revealed enhancement of coating properties like opacity (5%), whiteness (6%), gloss (7.5%) and antibacterial performance (more than 99% reduction of bacterial concentration) in magnesium oxide modified acrylic paint against unmodified ones and comparable with paint properties containing commercial biocides. The study shows that specially designed nano MgO modified acrylic resin can be used to make antibacterial coating without using commercial biocides.