AI Article Synopsis
- - A new eco-friendly method was created to produce nanoparticles from dried molokhia leaves, resulting in sustainable materials that act as flame retardants, antibacterial agents, and UV protectors for polymer films, specifically polyvinyl alcohol (PVA) nanocomposites.
- - The nanoparticles, which are around 8.5 nm in size, significantly improved the flame retardancy and UV protection of PVA films, completely preventing burning and providing over 900% better UV protection compared to films without nanoparticles.
- - The engineered nanoparticles also inhibited bacterial growth against common strains, offering clear inhibition zones, and a flame retardancy mechanism was proposed, along with an economic assessment for large-scale production of these sustainable nanoparticles.
Article Abstract
A novel and environmentally friendly route was developed for production of sustainable flame retardant, antibacterial and UV protective nanoparticles for polymeric films nanocomposites. For the first time, dried molokhia leaves were engineered into spherical nanoparticles with an average size of 8.5 nm via an eco-friendly, one-pot solid-state ball-milling method. The engineered nanoparticles were proved using spectroscopic and microscopic techniques. The sustainable nanoparticles were employed as an efficient and green flame retardant, antibacterial and UV protective materials for polyvinyl alcohol (PVA) nanocomposite films. The distinct compatibility between PVA chains and spherical nanoparticles afford excellent homogeneous dispersion of each nanoparticle in the polymer matrix. Compared to blank PVA film which burned at a rate of 125 mm/min, the novel nanoparticles achieved significant flame retardancy for polymer nanocomposites films recording zero rate of burning. Their outstanding charring ability and naturally doped elemental composition were attributed to their higher flame retardancy achieved. Moreover, the newly developed multifunctional nanoparticles integrated outstanding UV protection feature to developed polymer nanocomposite films recording UV protection factor superiority of more than 900% compared to nanoparticle free film. Noteworthy to note that, the nanoparticles afford excellent inhibition to bacterial growth against Escherichia coli and Staphylococcus aureus over the surface of developed polymer nanocomposite films achieving clear inhibition zone of 9 and 7.6 mm compared to zero mm for pristine polymer film, respectively. In addition, a proposed and clarified flame retardancy mechanism was presented. Additionally, an assessment was conducted regarding the economic feasibility of producing sustainable multifunctional nanoparticles on an industrial scale.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11582320 | PMC |
| http://dx.doi.org/10.1038/s41598-024-80360-y | DOI Listing |
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