Discussion about suitable applications for biodegradable plastics regarding their sources, uses and end of life

Paul-Pont, Ika; Ghiglione, Jean-François; Gastaldi, Emmanuelle; Halle, Alexandra ter; Huvet, Arnaud; Bruzaud, Stéphane; Lagarde, Franck; Galgani, François; Duflos, Guillaume; George, Matthieu; Fabre, Pascale

doi:10.1016/j.wasman.2022.12.022

Cited by 39 publications

(16 citation statements)

References 51 publications

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“…applications for which recycling is not an option as long as there are no specific collection schemes in place, such as in cosmetics), the objective will be not only to create a fully biobased material but also a material endowed with controlled on-demand degradability, biocompatibility and non-toxicity. 141…”

Section: Discussionmentioning

confidence: 99%

Recent advances in radical polymerization of bio-based monomers in aqueous dispersed media

et al. 2023

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Section: Discussionmentioning

confidence: 99%

Recent advances in radical polymerization of bio-based monomers in aqueous dispersed media

et al. 2023

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“…However, current discussion on biodegradable plastics do not accept to consider the environment as a waste treatment system, suggesting selected applications with respect to their use, end-of-life (EoL), and biodegradability in the environment. 87 Tools as LCA could be used for decision-making select the adequate biopolymer for circularity, with respect to EoL possibilities. 88 From a circular economy perspective, chemical recycling is a promising EoL option for PLA/PBS blends, as biopolymers are broken down (i.e., by lipase) into molecules that re-fed to polymerisation reactions.…”

Section: Eco-design Of Biogears For Implementation Of Circularity Pri...mentioning

confidence: 99%

“…Eco‐design involves using alternative and lower impact renewable biomass or bio‐waste as feedstock for biopolymer production or even materials with biodegradability potential in case of accidental spills or difficult waste management. However, current discussion on biodegradable plastics do not accept to consider the environment as a waste treatment system, suggesting selected applications with respect to their use, end‐of‐life (EoL), and biodegradability in the environment 87 …”

Section: Eco‐design Of Biogears For Implementation Of Circularity Pri...mentioning

confidence: 99%

Circular and lower impact mussel and seaweed aquaculture by a shift towards bio‐based ropes

Arantzamendi

Andrés

Basurko

et al. 2023

Reviews in Aquaculture

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Worldwide, current mussel and seaweed aquaculture practices contribute to the increase of fossil fuel-based plastic gears at sea, leading to marine litter and microplastics generation. Smart aquaculture has a great potential for shifting towards the use of lower impact bio-based and biodegradable gears. This review defines the value chain of biogears as more sustainable gears for mussel and seaweed aquaculture, and sustainability issues covering technology, environmental impacts, economy-market, policy, and social drivers for their potential implementation. Fit to purpose durability and functionality attributes, end-of-life (EoL) options and environmental benefits are key features for competitiveness of biogears versus conventional fossil fuel-based aquaculture gears. EoL management for collection, sorting and logistics of biogears to recycling facilities is needed for the up cycling of bio-based materials thus ensuring application of principles of circularity. The selection of the biopolymers for recyclability, improvement of the polymerisation and recycling processes together with the enhanced deployment of recycling facilities are considered as key factors for eco-designing of circular biogears. Current policies supporting bio-based plastics in marine applications and social benefits, as environmental sustainability, healthy products, and circular business opportunities, are likewise added value for the development and use of biogears. Overall, biogears can reduce environmental negative impacts in mussel and seaweed productions, while enabling circular use of bio-based materials and sustainable circular bioeconomy.

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“…2 In recent years, biodegradable plastics have gradually become green substitutes for petroleum-based plastics. 3 Among biodegradable plastics, polylactic acid (PLA) is one of the most prominent biopolymers, produced biotechnologically using renewable natural resources such as corn starch and sugarcane. 4,5 Because of its renewability, biocompatibility, recyclability, nontoxicity, and compostability, PLA as considered the most promising candidate is applied in many fields such as biomedical, drugs, packaging, textiles, and agricultural engineering.…”

Section: Introductionmentioning

confidence: 99%

Molecular structure regulation of functional polylactic acid based on chain expansion reaction and its improved hydrolysis resistance

Wang,

Zeng,

et al. 2024

Polymers for Advanced Techs

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In this work, the functional polylactic acid (PLA) was synthesized using epoxy chain extender (ADR) as a chain extender agent through melt blending method. The effects of ADR content on the molecular structure, thermal properties, and tensile properties of the functional PLA were investigated. Meanwhile, the hydrolytic behavior of the PLA/ADR materials at different hydrolysis temperatures was explored. It was found that ADR effectively regulated the molecular structure of PLA in the molten state and significantly increased the relative molecular weight, storage modulus, and complex viscosity of PLA. In addition, the Cole‐Cole diagram results suggested the branched structure of PLA chain expansion systems. Based on mechanical property tests, it was noted that the addition of ADR made the molecular chain form a micro‐crosslinked structure. Additionally, the mass loss rate of PLA/1.6ADR (the dosage of ADR was 1.6 wt%) was 14.75% after 14 weeks of hydrolysis under hydrolysis conditions at 58°C, while that of pure PLA was 25.89%. Moreover, the functional PLA/ADR materials exhibited significantly slower decrease rates in molecular weight, melting temperature, and tensile strength, and still maintained intact morphology after 14 weeks of hydrolysis compared to pure PLA. Therefore, the molecular structure of PLA is effectively regulated by ADR, which greatly enhances the hydrolysis resistance and further promotes the range of application of PLA.

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Discussion about suitable applications for biodegradable plastics regarding their sources, uses and end of life

Cited by 39 publications

References 51 publications

Recent advances in radical polymerization of bio-based monomers in aqueous dispersed media

Recent advances in radical polymerization of bio-based monomers in aqueous dispersed media

Circular and lower impact mussel and seaweed aquaculture by a shift towards bio‐based ropes

Molecular structure regulation of functional polylactic acid based on chain expansion reaction and its improved hydrolysis resistance

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