Green Chemistry, Journal Year: 2024, Volume and Issue: 26(12), P. 7067 - 7090
Published: Jan. 1, 2024
This work reports the analysis of 59 commercially available polymers from 20 different polymer classes for thermal properties, macrostructure, molecular mass distribution, and inorganic organic additives, highlighting need to characterize research prior recycling studies.
Language: Английский
ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(8), P. 4659 - 4679
Published: April 5, 2022
Plastics are indispensable, but their pollution is triggering a global environmental crisis. Although many end-of-life catalytic options have involved converting plastics into valuable products, deep understanding of the relationship between polymer structure and recycling performance significant urgently needed. Here, we start with primer polymeric chain structures on chemical discuss structure–performance polymer, catalyst, reaction. Specifically, development challenges re/upcycling waste PET polyolefins discussed in-depth. In addition, also present some prospects for innovations in catalyst synthesis reaction engineering basis relationship. The discussion ends brief perspective future plastic re/upcycling. Overall, intelligent catalysis design necessary incentivizing relieving burden plastics.
Language: Английский
Citations
220
Nature Reviews Methods Primers, Journal Year: 2022, Volume and Issue: 2(1)
Published: June 16, 2022
Language: Английский
Citations
175
Chemosphere, Journal Year: 2023, Volume and Issue: 320, P. 138089 - 138089
Published: Feb. 6, 2023
Human society has become increasingly reliant on plastic because it allows for convenient and sanitary living. However, recycling rates are currently low, which means that the majority of waste ends up in landfills or ocean. Increasing upcycling is a critical strategy addressing issues caused by pollution, but there several technical limitations to overcome. This article reviews advancements polymer technology aim improve efficiency waste. In food packaging, natural polymers with excellent gas barrier properties self-cleaning abilities have been introduced as environmentally friendly alternatives existing materials reduce food-derived contamination. Upcycling valorization approaches emerged transform into high-value-added products. Recent development recyclable high-performance plastics include design super engineering thermoplastics chemical bonds thermosets make them biodegradable. Further research needed develop more cost-effective scalable technologies address pollution problem through sustainable upcycling.
Language: Английский
Citations
160
Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(18), P. 9898 - 9915
Published: May 1, 2023
Controlled polymerization methods are well-established synthetic protocols for the design and preparation of polymeric materials with a high degree precision over molar mass architecture. Exciting recent work has shown that end-group fidelity and/or functionality inherent in these techniques can enable new routes to depolymerization under relatively mild conditions. Converting polymers back pure monomers by is potential solution environmental ecological concerns associated ultimate fate polymers. This perspective focuses on emerging field from synthesized controlled polymerizations including radical, ionic, metathesis polymerizations. We provide critical review current literature categorized according technique explore numerous concepts ideas which could be implemented further enhance lower temperature systems, catalytic depolymerization, increasing polymer scope, depolymerization.
Language: Английский
Citations
102
Polymer Composites, Journal Year: 2022, Volume and Issue: 43(9), P. 5831 - 5862
Published: Aug. 20, 2022
Abstract This review article discusses the environmental and economic effects of recycling, as well sustainable thermoplastic polymer recycling technologies. Several researchers have utilized recycled thermoplastics matrices in production a variety natural synthetic‐based composites, which is also focus this study. All industries (food packaging, construction building, transportation, indoor usage) where large market share are covered review. The desirable properties polymers, such corrosion resistance, low density, user‐friendliness, caused plastic to surpass aluminum other metals use over past 60 years. Furthermore, one most important measures available mitigate these dynamic segments plastics industry at present. Increased landfilling incineration negative impact on ecosystem, continued increase virgin fossil has environment. Consequently, continuous could lead depletion fuel resources, an emissions during processing, eventual incineration. Increasing numbers nations adopting circular economy concept effort avoid all problems. emphasizes reuse products materials according waste hierarchy, rather than their cremation or disposal
Language: Английский
Citations
93
Recycling, Journal Year: 2022, Volume and Issue: 7(2), P. 11 - 11
Published: Feb. 23, 2022
Recycling plastic is an important step towards a circular economy. Attaining high-quality recycled plastics requires the separation of waste by type, color, and size prior to reprocessing. Automated technology key for sorting objects in medium- high-volume plants. The current state art commercial equipment as well challenges faced Material Recovery Facilities (MRFs) sort post-consumer are analyzed here. Equipment recyclables were identified using publicly available information obtained from manufacturers’ websites, press releases, journal articles. Currently automated artificial intelligence (AI)-based sorters evaluated regarding their functionality, efficiency, types they can sort, throughput, accuracy. compiled captures progress made during ten years since similar reports published. A survey MRFs, reclaimers, brokers United States methods used plastic, practices encountered at MRFs recyclables. address some that face. However, film, multilayered, blended, or mixed-material problematic, typically designed single-component materials. Accordingly, improvements and/or new solutions considered necessary.
Language: Английский
Citations
87
Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 458, P. 214422 - 214422
Published: Jan. 31, 2022
Language: Английский
Citations
79
Progress in Polymer Science, Journal Year: 2023, Volume and Issue: 143, P. 101713 - 101713
Published: June 25, 2023
Language: Английский
Citations
79
Green Chemistry, Journal Year: 2022, Volume and Issue: 24(12), P. 4703 - 4727
Published: Jan. 1, 2022
Circular economy approach for various agrowaste-based bioplastic and biocomposite systems with potential applications in the protection of food products extension their shelf life.
Language: Английский
Citations
70
Polymer Engineering and Science, Journal Year: 2023, Volume and Issue: 63(9), P. 2651 - 2674
Published: June 21, 2023
Abstract Polyethylene terephthalate (PET) is used in textile and packaging industries. The main source of PET production fossil fuels with limited capacity. Also, products are single use that transform into high volumes wastes, causing ecosystem problems. Recycling proposed to confront this challenge. four major recycling techniques mechanical, chemical, pyrolysis, enzymatic. Mechanical, enzymatic have constrained capabilities manage waste. Chemical the potential path expanding waste possibility upcycling addressing dirty streams. Several chemical methods introduced discussed literature. five glycolysis, alcoholysis, aminolysis, ammonolysis, hydrolysis. This review describes depolymerization via these introduces hydrolysis as one can depolymerize an organic‐free solvent environment. Hydrolysis tolerates mixed wastes streams including copolymers. It helps avoid challenges attributed using organic solvents reaction systems. Moreover, produces terephthalic acid, monomer, which has recently gained attention initiative monomer for production. focuses on three forms hydrolysis—alkaline, neutral, by presenting background studies, issued patents, recent trends application
Language: Английский
Citations
68