Diversion from landfill: mechanical recycling of plastics from materials recovery facilities and from shredder residue

Hooper, Richard; Potter, Anthony K; Singh, Mudit

doi:10.1039/b008805f

Cited by 11 publications

(5 citation statements)

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“…Physical degradation. Physical degradation is accomplished by crushing, [187][188][189] swelling, 190 creating pores, 191 etc., which do not damage the chemical structure of the waste polymer. It is hard to realize a fundamental change in the properties of epoxy thermosets because the chemical construction of the epoxy thermosets is not altered.…”

Section: Degradation Methodsmentioning

confidence: 99%

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Bio-based hyperbranched epoxy resins: synthesis and recycling

Jiang,

Li,

et al. 2024

Chem. Soc. Rev.

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Section: Degradation Methodsmentioning

confidence: 99%

“…Physical degradation is accomplished by crushing, 187–189 swelling, 190 creating pores, 191 etc. , which do not damage the chemical structure of the waste polymer.…”

Section: Recycling Of Bio-based Hyperbranched Epoxy Resinsmentioning

confidence: 99%

Bio-based hyperbranched epoxy resins: synthesis and recycling

Jiang,

Li,

et al. 2024

Chem. Soc. Rev.

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“…), otherwise no real reuse is possible. Despite the many efforts for an automatic separation of plastics, this appears to still be impossible to achieve at an industrial scale (Hooper et al, 2001;Stolberg, 2002;Hooper, 2002).…”

Section: The 2000/53 Directivementioning

confidence: 98%

End of life vehicle management in areas of low technology sophistication. A case study in Greece

Sakkas

Manios

2003

Bus Strat Env

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This paper was based on the findings of a study aimed at identifying and evaluating appropriate investment strategies in the area of end of life vehicle management (ELVM), especially against the emerging policy framework, as outlined by the recent EU legislation (2000/53 EG directive). The study was carried out for OMPM SA (Organisation for the Management of Public Material), a Greek organization, with many years' involvement in the management of ELVs. The departure point of the work was the critical review of available best practices, mostly compiled by means of a considerable number of on the spot visits to diverse ELVM processing facilities in the Northern EU. These experiences and practices were critically adapted to the very different local circumstances, characterized by an underdeveloped market and a low operational sophistication. In this way, the recommendations of the study, also reported in this work, are of a wider relevance to areas where the main priority is rather the development and rationalization of the ELVM business itself, before getting on to the subtler fine tuning and optimization issues that may be on the agenda in more mature environments. Copyright © 2003 John Wiley & Sons, Ltd and ERP Environment.

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“…Mechcycling/physcycling is currently the most commonly used recycling method, which involves collecting, classifying, and purifying polymeric wastes, followed by melting to produce new polymeric products. − This method is simple and efficient; however, because of the residual catalyst and other pollutants, polymers can only be recycled into products with degraded performances. Chemical recycling involves the conversion of polymers into new substances or monomers through chemical reactions. − Recovering new substances with other practical values is significant for reducing the environmental pollution of existing plastic waste. − However, it is not only unsustainable for original fossil-based polymer materials, but it also has the disadvantage of limited recycling times, which is usually one-time recycling and reuse.…”

Section: Introductionmentioning

confidence: 99%

Ring-Opening Polymerization of a Seven-Membered Lactone toward a Biocompatible, Degradable, and Recyclable Semi-aromatic Polyester

Luo

et al. 2023

Macromolecules

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The widespread use of polymer materials and their improper disposal have resulted in significant environmental pollution and wastage of resources. Therefore, the design of chemically recyclable, environmentally compatible, and applicable polymers represents a new approach for a green and circular polymer economy, and it has become a major focus worldwide. Herein, we efficiently synthesized a seven-membered ether lactone, 3,4-dihydro-2H-benzo [b][1,4]dioxepin-2-one (BDXO), through a one-step reaction and successfully realized its controlled ring-opening polymerization (ROP). The ROP of BDXO in bulk and solvent conditions catalyzed by Sn(Oct) 2 was investigated systematically, and the thermodynamic parameters obtained were ΔS P 0 = −30.90 J•mol −1 •K −1 and ΔH P 0 = −14.52 kJ•mol −1 . The PBDXO polymer exhibits excellent thermal properties, applicable mechanical properties, excellent biocompatibility, and complete hydrolytic degradability. Notably, not only was the direct chemical recycling of PBDXO to BDXO monomer realized with high efficiency through bulk thermal depolymerization with a yield greater than 92% and a purity of up to 96% but also the regenerated PBDXO with almost the same structure and properties as the initial PBDXO was obtained through repolymerization of the recycled BDXO, establishing a polymer−monomer−polymer closed-loop life cycle.

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Diversion from landfill: mechanical recycling of plastics from materials recovery facilities and from shredder residue

Cited by 11 publications

References 1 publication

Bio-based hyperbranched epoxy resins: synthesis and recycling

Bio-based hyperbranched epoxy resins: synthesis and recycling

End of life vehicle management in areas of low technology sophistication. A case study in Greece

Ring-Opening Polymerization of a Seven-Membered Lactone toward a Biocompatible, Degradable, and Recyclable Semi-aromatic Polyester

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