Biobased and biodegradable polymers in a circular economy context: Understanding quercetin and gallic acid impacts on PHBV thermal properties

Aouf, Chahinez

doi:10.1016/j.polymdegradstab.2022.109975

Cited by 19 publications

(26 citation statements)

References 35 publications

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“…Thus, the polyphenol powder was homogenously distributed in the polymer matrix with strong hydrogen bonds between the two. 14 Throughout the decontamination process, the amount of quercetin initially loaded into the film remained unchanged (Quercetin concentration: 5.23 ± 0.08 mg. g À1 at 0 h, 5.32 ± 0.31 mg. g À1 at 6 h, and 5.29 ± 0.07 mg. g À1 at 48 h). This means that the interactions between quercetin and PHBV were strong enough to remain stable during the heat treatment.…”

Section: Impact Of Quercetin On the Decontamination Efficiency And Th...mentioning

confidence: 97%

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Decontamination efficiency of poly(hydroxybutyrate‐co‐valerate)‐based food packaging material: The role of the chemical structure of contaminants and additive

Dedieu,

Bonnenfant,

Peyron

et al. 2023

J of Applied Polymer Sci

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Recycled plastic materials can only be placed in the market if they are free from contaminants at harmful levels. This work studies the thermal decontamination of poly(hydroxybutyrate‐co‐valerate) (PHBV) intended for food contact. PHBV was first contaminated with gallic acid, catechin, ferulic acid, and PEG 200, at 500 mg/kg. Thermal decontamination was then applied at 160°C for 6 and 48 h. Due to the low volatility of these molecules and their hydrogen bonding interactions with the polymer, decontamination efficiency was well below safety limits. Indeed, only 25.9% of gallic acid, 68.5% of catechin, 67% of ferulic acid, and 86.8% of PEG 200 were removed. In addition, a strong degradation of the polymer was observed (Mw decrease of 57%). To try to prevent polymer degradation, while enhancing decontamination conditions, quercetin (a natural polyphenol) was used as a stabilizer at 0.5 wt%. After 6 h of decontamination, hydrogen bonds, and π‐stacking interactions were formed between quercetin and the contaminants, reducing their removal (−8.5% for gallic acid, −57.4% for catechin, −18.7% for ferulic acid, and −31.9% for PEG200). After 48 h, strong PHBV degradation was observed (−83% Mw and −45% Xc), particularly in the presence of quercetin.

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Section: Impact Of Quercetin On the Decontamination Efficiency And Th...mentioning

confidence: 97%

“…Due to the hydrogen bonds formed with the polymer, the formation of the sixmembered ring, precursor of the thermal degradation mechanism, was prevented. 14 In the next section, the decontamination efficiency as well as the structural evolution of PHBV will be studied, in the presence of quercetin at 0.5 wt%.…”

Section: Decontamination Of Neat Phbv Filmmentioning

confidence: 99%

Decontamination efficiency of poly(hydroxybutyrate‐co‐valerate)‐based food packaging material: The role of the chemical structure of contaminants and additive

Dedieu,

Bonnenfant,

Peyron

et al. 2023

J of Applied Polymer Sci

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“…The circular economy emerges as an effective tool to face the economic mechanisms and development processes implemented so far, which have led to the ecological depletion of the planet [ 1 ]. Polymer materials have represented a breakthrough for society, allowing the production of an endless number of low-cost and highly useful products.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the development of biocomposite materials represents an effective option to adequately manage this plastic waste [ 2 ]. That is why, among the actions contemplated, in the circular economy, is the ability to reuse polymeric materials and the manufacture of biocomposites to reduce environmental impact [ 1 ]. The Circular Economy Action Plan adopted in 2020 by European Economic and Social Committee highlights the use of biodegradable plastics or plastics with bio-based raw materials as one of the new challenges in terms of sustainability [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Manufacture and Characterization of Recycled Polypropylene and Olive Pits Biocomposites

Jurado-Contreras

Navas‐Martos²,

Rodríguez-Liébana³

et al. 2022

Polymers

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The present work studies the use of olive pit (OP) as a reinforcement in the manufacture of composites based on a post-consumer recycled polypropylene (rPP). In this way, it is feasible to provide added value from olive pits, a by-product resulting from the olive industry operations, while promoting the circular economy and reducing the use of fossil-based polymers. For this purpose, suitable samples were manufactured using 25 wt% and 40 wt% of OP. Additionally, the effect of incorporating additives was studied: (a) a process control additive (PA), and (b) a coupling agent of maleic anhydride grafted polypropylene (MAPP). The results showed an improvement in Young’s and flexural modulus with the OP addition. The incorporation of PA did not present any significant improvement in the properties of the materials, nevertheless it facilitated the biocomposite manufacturing process. As for the coupling agent, it significantly improved the mechanical properties, achieving the best results with the addition of the two types of additives and 40 wt% of OP. Moreover, the thermal properties were maintained, and there was an increase in crystallinity in all composites compared to rPP. According to the results of the fracture surface analysis, the coupling agent improves reinforcement-polymer matrix cohesion.

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“…The problem of particle dispersion could be solved by grafting surfactants, but they also experience thermal decomposition and gasification during high-temperature processing of PPS fibers, resulting in reduced spinnability. Quercetin 19 is a polyhydroxy flavonoid widely spread in plants, which has strong antioxidant and free-radical scavenging abilities. Its melting point is as high as 320 C, and its decomposition temperature can rise above 335 C. In terms of thermal stability, it surpasses many typical organic antioxidants.…”

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confidence: 99%

Effect of quercetin on the structure and oxidation resistance of polyphenylene sulfide fiber prepared by melt spinning

Lian

Yin³

et al. 2023

Textile Research Journal

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Polyphenylene sulfide fiber is easily oxidized at high temperature, thus vastly reducing its application range. In this study, polyphenylene sulfide/quercetin fibers were prepared via melt spinning. The effect of quercetin on the spinnability of the composite fibers was explored, and their cross-sectional morphology, crystalline properties, orientation, tensile properties, thermal stability and oxidation stability were investigated. At the quercetin content of 1.5 wt.%, particle agglomerates and some gasification, causing fluctuations in melt pressure, fiber breakage and poor spinnability, were observed in the polyphenylene sulfide matrix. The addition of quercetin can increase the crystallization temperature of polyphenylene sulfide, shorten its crystallization time, refine the crystalline particles therein, and improve the degree of fiber orientation. At the quercetin content of 1.0 wt.%, the tensile strength and elongation at break of composite fibers increased by 30.8% and 7.6%, respectively, as compared to those of pure polyphenylene sulfide fibers. Moreover, the decomposition temperature and the oxidation induction temperature at a 5% weight loss were 16.3°C and 13.4°C higher than those of the unmodified PPS fibers. The loss of strength of composite fibers subjected to oxidation for 240 h was only 18.4%. The X-ray diffraction results showed that the phenolic hydroxyl groups in the quercetin structure were able to capture free radicals generated during the oxidation of polyphenylene sulfide fibers, as well as inhibit the oxidative degradation reaction and improve the oxidative stability of the fiber. The oxidation resistance mechanism of composite fibers was also proposed.

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Biobased and biodegradable polymers in a circular economy context: Understanding quercetin and gallic acid impacts on PHBV thermal properties

Cited by 19 publications

References 35 publications

Decontamination efficiency of poly(hydroxybutyrate‐co‐valerate)‐based food packaging material: The role of the chemical structure of contaminants and additive

Decontamination efficiency of poly(hydroxybutyrate‐co‐valerate)‐based food packaging material: The role of the chemical structure of contaminants and additive

Manufacture and Characterization of Recycled Polypropylene and Olive Pits Biocomposites

Effect of quercetin on the structure and oxidation resistance of polyphenylene sulfide fiber prepared by melt spinning

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