Development of antibacterial waterborne polymeric coating using iodine complex
Researchers found that the developed water-based antimicrobial polymer nanocomposite, which is mixed with an iodine complex, shows excellent effectiveness against the formation of biofilms and achieves a reduction in biofilm formation of around 85-97% when used as a binder in paints.
With advancements in architectural coatings, the demand for antimicrobial coatings in this sector has increased significantly. The COVID-19 pandemic has also been a primary force behind the increased demand for and production of antimicrobial coatings. Typically, antimicrobial coatings are used to resist and decolonize microbial attacks such as biofilm formation, fungal contamination, and black mold formation. In this study, we synthesized a water-based antimicrobial polymer nanocomposite, I-P(MMA/BA), by blending an iodine complex with a poly (methyl methacrylate-butyl acrylate) latex with the aid of polyol and polyvinylpyrrolidone.
Event Tip: EC Conference Bio-based & Water-based Coatings 2024
Discover the future of sustainable coatings at the EC Conference Bio-based & Water-based Coatings 2024 in Cologne, Germany, on November 5th – 6th! Join leading experts to explore the latest trends and innovations. Register by September 3rd to benefit from early bird rates. Secure your spot now!
Antimicrobial efficacy was evaluated in two habitats, namely planktonic and biofilm. Biomass studies indicated that iodinated latex nanocomposites and films show excellent antibacterial and antibiofilm activities. About 85–97% of biofilm formation was reduced by covering 15–30% of the area with iodinated latex film. The contact angle measurement of the iodinated latex-coated surface provides evidence of good hydrophobicity, which prevents stagnation of water over the surface. The developed dual-functional water-based iodinated nanocomposite displays great potential for inhibiting biofilm formation on surfaces when employed as a binder in paints.
Source: Journal of Coatings Technology and Research, Volume 21, pages 773–787, (2024), December 2023
