Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
ABSTRACT Polypropylene (PP) was compounded with 3 different zinc‐based additives, zinc oxide tetrapod (t‐ZnO), oxide, and pyrithione (ZPT) at concentrations (0.1–2 wt%) their antimicrobial (AM) efficacy toward bacteria, virus, fungi assessed. Additionally, caprylic acid (CA), aimed to be used as a promoter, showed inherent AM properties when in PP (at 2 wt% loading, log R = 2.5 4.1 against Escherichia coli Staphylococcus aureus , respectively) synergistic effect additives. CA enhanced performance, thus effectively requiring less overall concentration of Zn provide the same (additives loadings down 0.1 for ZPT 0.4 tZnO equal amount). The antiviral H 1 N selected materials superiority compared t‐ZnO, up 93% viral reduction after 6 h versus 85% t‐ZnO. Similarly, superior antifungal properties, almost no fungal growth 28 days incubation, while some visible microscope on t‐ZnO additive loading. morphology particles assessed using visualization techniques (CT‐scan SEM–EDX). A similar distribution or without obtained, yet shape both cases (ZPT t‐ZnO). At high matrix, may act plasticizer during extrusion would help retaining particles.
Language: Английский