Mechanical Recycling of Multilayer Flexible Packaging Employing Maleic Anhydride as Compatibilizer

Turriziani, Bruna Bonato; Vieira, Roniérik Pioli; Marangoni Júnior, Luís; Alves, Rosa Maria Vercelino

doi:10.1007/s10924-023-03057-9

Cited by 4 publications

(3 citation statements)

References 50 publications

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“…Additionally, incorporating compatibilizers, fillers or cross-linking agents should help strengthen the interactions between S and PL, thereby mitigating the negative impact of weaker interactions on mechanical properties. These additives can facilitate better compatibility between components and enhance the overall structural integrity of the films. , Despite the potential strategies outlined for enhancing properties, the observed reductions reported in Table generally do not reach levels that render the potential application of PL/PIA/S films unfeasible. They remain within perfectly acceptable value ranges typically associated with starch-based films.…”

Section: Resultsmentioning

confidence: 99%

“…Although the incorporation of PL did not lead to notable reductions in WVP, future improvements in this regard could involve exploring alternative methods to increase the loading of PL. For instance, incorporating compatibilization agents may enhance the interaction between PL and the substrate, ,, potentially improving its effectiveness as a barrier against water vapor transmission. Other viable strategies are the development of multilayered packaging structures , or the incorporation of lignocellulosic fibers .…”

Section: Resultsmentioning

confidence: 99%

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Incorporation of Limonene Oligomers into Poly(itaconic acid)/Starch Blend Films for Antimicrobial and Antioxidant Packaging Applications

Vianna,

Gonçalves,

Marangoni Júnior

et al. 2024

ACS Sustainable Chem. Eng.

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In this study, we devised novel poly(itaconic acid)/ starch (PIA/S)-based films by incorporating both limonene (LIM) and low-molar-mass poly(limonene) (PL) at varying concentrations (3, 6, and 9/100 g of starch). Our investigation centered on evaluating their antimicrobial and antioxidant capabilities with a focus on characterizing the most promising bioactive film formulations. Surprisingly, LIM-incorporated films showed no discernible bioactivity, contrasting with the remarkable outcomes seen in PL-incorporated films. Specifically, the latter demonstrated effectiveness against several pathogenic microorganisms including Bacillus cereus, Clostridium perfringens, Pseudomonas aeruginosa, and Colletotrichum gloeosporioides. Moreover, these films exhibited notable 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity of up to 13.4%, showcasing the hitherto unexplored potential of PL in this domain. This study also highlights the influence of PL incorporation on the general film properties. Overall, the films displayed uniform morphology, reduced tensile strength, and decreased elongation at break, accompanied by an increased moisture content and water solubility. No significant alterations were noted in the water vapor barrier properties. Notably, the introduction of PL also brought about an exceptional ultraviolet (UV)-light barrier effect, raising the prospect of utilizing PIA/S/PL films as innovative active packaging materials in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Incorporation of Limonene Oligomers into Poly(itaconic acid)/Starch Blend Films for Antimicrobial and Antioxidant Packaging Applications

Vianna,

Gonçalves,

Marangoni Júnior

et al. 2024

ACS Sustainable Chem. Eng.

Self Cite

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“…Moreover, many authors reported the influence of other factors, such as the amount and molecular weight of CP, as well as its content of functional groups, on the effectiveness of compatibilization. The latter can be qualitatively evaluated through direct observation of the dimension, shape, and distribution of the dispersed phase, which are strictly connected to the quantitative effect on the final mechanical and rheological properties of the blends [2,6,9,[13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

From Waste Vegetable Oil to a Green Compatibilizer for HDPE/PA6 Blends

Cappello,

Strangis,

Cinelli

et al. 2023

Polymers

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When properly compatibilized, the blending of polyethylene (PE) and polyamide (PA) leads to materials that combine low prices, suitable processability, impact resistance, and attractive mechanical properties. Moreover, the possibility of using these polymers without prior separation may be a suitable opportunity for their recycling. In this work, the use of an epoxidized waste vegetable oil (EWVO) was investigated as a green compatibilizer precursor (CP) for the reactive blending of a high-density PE (HDPE) with a polyamide-6 (PA6). EWVO was synthesized from waste vegetable cooking oil (WVO) using ion-exchange resin (Amberlite) as a heterogeneous catalyst. HDPE/PA6 blends were produced with different weight ratios (25/75, 75/25, 85/15) and amounts of EWVO (1, 2, 5 phr). Samples with WVO or a commercial fossil-based CP were also prepared for comparison. All the blends were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), rheology, and mechanical tests. In the case of HDPE/PA6 75/25 and 85/15 blends, the addition of EWVO at 2 phr showed a satisfactory compatibilizing effect, thus yielding a material with improved mechanical properties with respect to the blend without compatibilizer. On the contrary, the HDPE/PA6 25/75 ratio yielded a material with a high degree of crosslinking that could not be further processed or characterized. In conclusion, the results showed that EWVO had a suitable compatibilizing effect in HDPE/PA6 blends with high HDPE content, while it resulted in unsuitable for blends with high content of PA6.

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Mechanical Recycling of New and Challenging Polymer Systems: A Brief Overview

Titone,

Botta,

La Mantia

2024

Macro Materials & Eng

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Pollution from plastics is a major issue in the current context, prompting the scientific community to focus its efforts on recycling these materials. Mechanical recycling emerges as the most popular due to its practicality and cost‐effectiveness. In fact, with the increase in environmental awareness, the adoption of new circular economy models, stricter regulations mandating disposal and recycling, and lower costs compared to other recycling techniques, this type of recycling is taking a predominant role over other method. However, the presence of a variety of products of different polymeric nature, the introduction of new biodegradable products, and the complexity of multilayer packaging combining different polymers, without concrete solutions for recycling create a heterogeneous range of materials that leaks into the environment. The scientific literature is actively addressing these challenges, and this review aims to explore the latest strategies for enhancing the mechanical recycling of new and challenging polymer systems. Specifically, it explores the recycling of materials originally designated for landfill, incineration or composting, focusing on advancements in management of these previously overlooked and problematic system. This underexplored perspective seeks to offer new insights and innovative solutions that can transform polymer waste management and advance more sustainable recycling practices.

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Mechanical Recycling of Multilayer Flexible Packaging Employing Maleic Anhydride as Compatibilizer

Cited by 4 publications

References 50 publications

Incorporation of Limonene Oligomers into Poly(itaconic acid)/Starch Blend Films for Antimicrobial and Antioxidant Packaging Applications

Incorporation of Limonene Oligomers into Poly(itaconic acid)/Starch Blend Films for Antimicrobial and Antioxidant Packaging Applications

From Waste Vegetable Oil to a Green Compatibilizer for HDPE/PA6 Blends

Mechanical Recycling of New and Challenging Polymer Systems: A Brief Overview

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