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61,005 resultsShowing papers similar to Chemical Recycling of Mixed Plastics in Electronic Waste Using Solvent-Based Processing
ClearProcess Optimization of Solvents Assisted Polyethylene Waste Recycling
Researchers optimized solvent-based chemical recycling of polyethylene plastic waste to recover high-quality recycled material. The study demonstrates that chemical recycling can be tuned to maximize yield and quality, offering a scalable alternative to mechanical recycling that degrades plastic properties over time.
Chemical Recycling of Plastics by Microwave‐Assisted High‐Temperature Pyrolysis
Researchers developed a microwave-assisted high-temperature pyrolysis method that continuously breaks down mixed plastic waste and plant oil into useful chemicals like ethylene and propylene. This chemical recycling approach could help divert plastic waste from the environment while producing renewable building blocks for new materials.
Stepwise flotation separation of WEEE plastics by polymeric aluminum chloride towards source control of microplastics
Researchers developed a stepwise flotation separation process using polymeric aluminum chloride to sort and recover mixed plastics from waste electrical and electronic equipment (WEEE), demonstrating improved separation efficiency and positioning the approach as a strategy to reduce microplastic pollution from e-waste mismanagement.
Green solvent mediated extraction of micro- and nano-plastic particles from water
Researchers developed a green solvent-based extraction method for isolating micro- and nanoplastic particles from water samples, offering a lower-toxicity alternative to conventional extraction approaches for environmental plastic monitoring.
Environmental Sustainability of Solvent Extraction Method in Recycling Marine Plastic Waste
A solvent-based dissolution-reprecipitation method successfully recovered high-density polyethylene and polypropylene from real marine plastic debris with recovery rates above 87%, while a lifecycle assessment showed the process has a lower environmental footprint than conventional plastic production. This offers a promising pathway to recycle ocean plastic back into usable materials rather than downcycling or landfilling it.
Assessment of the Electrostatic Separation Effectiveness of Plastic Waste Using a Vision System
Researchers developed an electrostatic separation method for sorting mixed plastic waste by polymer type, providing a faster way to assess the quality of plastic separation in recycling processes. Improved plastic sorting and recycling efficiency is key to reducing the amount of mixed plastic waste that eventually breaks down into microplastics.
Current Advances and Challenges in Chemical Recycling of Polymeric Materials
This review examines current advances and remaining challenges in chemical recycling of polymeric materials as an alternative to mechanical recycling, which degrades material properties with repeated cycling. The authors discuss the high efficiency and simpler preprocessing requirements of chemical recycling methods against a backdrop of approximately 150 million metric tonnes of annual global plastic waste generation.
Chemical Recyclingof Polyethylene Terephthalate (PET)Driven by the Use of Protic Ionic Liquids: A Strategy to MitigateMicroplastic Pollution
Researchers developed a chemical recycling process for polyethylene terephthalate plastic using protic ionic liquids as green solvents, enabling depolymerization under milder conditions than conventional methods. The approach achieved high PET conversion rates and yielded recyclable monomers, offering a more sustainable alternative for addressing PET waste and associated microplastic pollution.
Assessment, Characterization, and Bioprocessing of E-Waste Plastics in the Environment
This review explores the environmental and health challenges posed by electronic waste plastics, which contain complex mixtures of harmful chemicals. The study examines emerging biotechnological solutions such as microbial degradation and enzymatic breakdown as promising alternatives for recycling e-waste plastics, while noting that challenges related to scalability, toxicity, and economic viability remain to be addressed.
Single-Step Electrochemical Upcycling of PET: Waste to Value-Added Chemicals, Oral Presentation
Researchers developed a single-step electrochemical method to upcycle PET plastic waste into value-added chemicals and organic materials, targeting the over 70% of plastic that ends up in landfills or oceans where it breaks down into microplastics.
Reciclagem química conduzida pelo uso de líquidos iônicos, como estratégia para mitigar a poluição por microplásticos
This study used low-toxicity ionic liquids to chemically recycle PET microplastics under mild temperature and pressure conditions. Ionic liquids offer a greener alternative to the harsh solvents typically needed for chemical recycling. The approach could help address microplastic pollution by providing a more environmentally friendly way to break down and recover value from tiny plastic particles that are difficult to collect and recycle by conventional means.
Approaches for Management and Valorization of Non-Homogeneous, Non-Recyclable Plastic Waste
This review examined management and valorization strategies for non-homogeneous, non-recyclable plastic waste, evaluating chemical recycling, energy recovery, and upcycling approaches as pathways to reduce environmental plastic accumulation and recover value from difficult-to-process waste streams.
Polymer‐Based Recycling Strategies for Plastic Waste: A Comprehensive Review
This comprehensive review evaluates mechanical and chemical recycling strategies for plastic waste, noting that mechanical recycling is widely used but limited by polymer degradation, while chemical recycling offers higher quality recovery but at greater energy and financial cost. The study highlights emerging technologies including AI-assisted sorting, nanotechnology, and biodegradable polymer development as promising approaches for building a more circular plastics economy.
Application of Different Chemical Recycling for Plastics
This review examines chemical recycling methods for plastic waste as alternatives to mechanical recycling, focusing on depolymerization via solvolysis, pyrolysis, and purification processes applicable to PET, polyurethane, and polystyrene. The authors discuss how these approaches convert polymer waste back into feedstock monomers that can be repolymerized, addressing value degradation and sorting limitations inherent to mechanical recycling.
Stapler Strategies for Upcycling Mixed Plastics
Scientists developed small molecules that work alongside compatibilizing polymers to allow previously incompatible mixed plastics to be mechanically recycled together. The approach successfully maintained material properties through 20 recycling cycles and was tested on real post-consumer plastic waste.
Mechanical recycling of plastic waste as a point source of microplastic pollution
Researchers found that mechanical recycling of plastic waste is a significant point source of microplastic pollution, releasing plastic fragments into wastewater during washing, shredding, and processing stages of the recycling chain.
Evaluating Combination of Solvent-Based Recycling and Mechanical Recycling of ABS Materials for Mitigating Plastic Pollution and Promoting Environmental Consciousness
Researchers evaluated a hybrid recycling approach combining solvent-based and mechanical recycling of acrylonitrile butadiene styrene (ABS) materials, blending 70% virgin ABS with 30% recycled ABS across three production cycles for wiring devices. Mechanical testing showed that recycled ABS blends maintained comparable performance to virgin material, supporting its viability for mass production.
Solvent-Based Elimination of Organic Matter from Marine-Collected Plastics
Researchers developed a solvent-based method to remove biofouling and organic matter from plastic litter collected from the marine environment before chemical analysis. Reliable protocols for cleaning marine plastics are important for accurately characterizing the types and properties of microplastics in ocean environments.
Characteristics of microplastics and the role for complex pollution in e-waste recycling base of Shanghai, China
Researchers found extremely high concentrations of microplastics — up to 44,277 particles per 50 g in dust samples — at a formal e-waste recycling facility in Shanghai, with 103 polymer types detected, highlighting electronic waste recycling as a significant and understudied source of microplastic pollution.
Tribo-Electrostatic Separation Analysis of a Beneficial Solution in the Recycling of Mixed Poly(Ethylene Terephthalate) and High-Density Polyethylene
Researchers optimized an electrostatic separation process for sorting PET and HDPE plastic particles, testing how different parameters affect separation efficiency for recycling. Improving plastic sorting technology is key to increasing recycling rates and reducing the amount of plastic waste that ultimately degrades into environmental microplastics.
On technological solutions for recycling of recycling of polymer waste: A review
This paper is not directly about microplastics; it reviews technological approaches to recycling polymer waste — mechanical, chemical, and energy-based methods — and analyzes their economic and environmental trade-offs. Better plastic recycling technology is relevant to microplastic prevention insofar as it reduces the amount of plastic that degrades into environmental microplastic particles.
Binary Solvent Extraction of Microplastics from Complex Environmental Matrix.
Researchers tested a two-solvent extraction method for isolating microplastics from complex environmental matrices. An efficient extraction technique is important for accurately detecting and quantifying microplastics in samples like sediment and biological tissue that contain many other organic and inorganic compounds.
Chemical Recycling of Polycarbonate and Polyester without Solvent and Catalyst: Mechanochemical Methanolysis
This study presents a solvent-free, mechanochemical method for recycling polycarbonate and polyester plastics back into reusable monomers using ball-milling. This green approach could help reduce the accumulation of hard-to-recycle plastics that eventually fragment into microplastics in the environment.
Valorisation of plastic waste via metal-catalysed depolymerisation
This review covers metal-catalysed depolymerisation approaches for recycling and upcycling waste plastics back into monomers or value-added chemicals, highlighting recent advances in catalyst design that improve selectivity and yield for common polymer types.