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Innovation in Active Packaging: Biodegradable PBAT/Molybdenum Oxide Systems with Nanoparticles for Microplastic Reduction
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Researchers developed biodegradable PBAT nanocomposite films incorporating molybdenum trioxide (MoO3) nanoparticles at varying concentrations, characterizing the films via FTIR, TD-NMR, water activity analysis, and contact angle measurements to assess their suitability as active packaging with reduced microplastic shedding potential.
This study proposes the development of nanocomposite films based on poly (butylene adipate-co-terephthalate) (PBAT) incorporated with different concentrations of molybdenum trioxide (MoO3) for use in biodegradable packaging. The films were produced by extrusion followed by calendering and characterized using Fourier-transform infrared spectroscopy (FTIR), time-domain nuclear magnetic resonance (TD-NMR), water activity (aW) analysis, and contact angle measurements. FTIR results indicated physical interactions between the polymer matrix and the nanoparticles, particularly in the carbonyl group region. TD-NMR analysis revealed restricted molecular mobility of the PBAT chains in samples with lower MoO3 content, suggesting good nanoparticle dispersion. Water activity decreased with increasing MoO3 concentration, indicating improved barrier properties. Contact angle measurements showed that the formulation with 0.1% MoO3 exhibited greater hydrophilicity, due to the generation of more heterogeneous materials, which is in agreement with the TD-NMR measurements. The results suggest that controlled incorporation of MoO3 can enhance the structural and functional properties of PBAT, reinforcing its potential as a material for active and sustainable packaging.
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Cover Image, Volume 141, Issue 17
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Researchers developed biodegradable films incorporating molybdenum trioxide and zinc oxide nanoparticles into a poly(butylene adipate-co-terephthalate) matrix via casting, characterizing the material using FTIR, TD-NMR, XRD, and TGA analyses. They found the composite films exhibited exceptional mechanical and chemical properties, bacteriostatic features, and no microplastic formation after disposal, supporting their potential as eco-friendly food packaging.
Biodegradable packing food films based on PBAT containing ZnO and MoO3
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Researchers incorporated ZnO and MoO3 nanoparticles into PBAT biodegradable polymer films for food packaging, finding improved antimicrobial activity and UV barrier properties while maintaining acceptable mechanical performance for packaging applications.
Biodegradable nanocomposite films containing combined ZnO and TiO₂ nanoparticles in PBAT: A strategy to mitigate microplastic persistence from food packaging
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This study created new biodegradable food packaging films by combining a plant-based polyester (PBAT) with zinc oxide and titanium dioxide nanoparticles, finding that the combination accelerated the material's degradation while also improving its mechanical and safety properties. The goal was to develop packaging that breaks down faster in the environment, producing fewer persistent microplastics compared to conventional plastics. Results suggest certain nanoparticle concentrations produce materials that are both commercially viable for packaging and meaningfully less likely to accumulate in ecosystems.
Recent Advances in PBAT (Nano) Composite Materials for Food Packaging: A Comprehensive Review
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This review surveys advances in PBAT-based biodegradable nanocomposites for food packaging, covering fabrication methods and nanofillers that improve the mechanical strength, barrier properties, and antimicrobial performance of this promising sustainable alternative to conventional plastic packaging.
Comparative Study of the Addition of TiO2 and TiO2/OMMT Clay on the Properties of PBAT for Biodegradable Food Packaging Applications
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Researchers incorporated TiO₂ nanoparticles and TiO₂/OMMT clay into a biodegradable PBAT matrix to improve its properties for food packaging, finding that the nanofillers enhanced barrier and mechanical performance without significantly altering thermal stability or crystallinity.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.