Catalyst selectively and sequentially deconstructs multiple polymers in mixed plastics into pristine monomers

https://phys.org/news/2023-10-scientists-recycling-plastics.html

"requires 94% less energy and 96% less fossil fuel... works for >30% of all plastics including composites and multilayer packaging... synthetic organocatalyst deconstructs at different temperatures: Polycarbonates at 266° F, polyurethanes at 320° F, polyethylene terephthalates at 356° F and polyamides at 410° F... works in 2 hours... other plastics, additives and associated materials such as cotton and plastic bags left intact and subsequently recovered... filtration removes impurities (pigments), then monomers, then catalyst, reused"

Related:

Scientists create artificial protein capable of degrading microplastics in bottles
https://phys.org/news/2023-10-scientists-artificial-protein-capable-degrading.html

Scientists find hundreds of toxic chemicals in recycled plastics
https://phys.org/news/2023-11-scientists-hundreds-toxic-chemicals-recycled.html

Polyethylene waste could be a thing of the past
https://phys.org/news/2023-12-polyethylene.html

Scientists find a close-loop recycling process for one of the most widely used plastics
https://phys.org/news/2024-01-scientists-loop-recycling-widely-plastics.html

Toxic compounds made safer smashing plastic bags with metal ball in chemical reactions
https://www.thecooldown.com/green-tech/plastic-waste-chemical-reactions-metal-ball/

A research team is developing a method to recycle more plastics
https://phys.org/news/2024-05-team-method-recycle-plastics.html

Innovative method uses oxygen and light to recycle unsaturated polymers
https://phys.org/news/2024-07-method-oxygen-recycle-unsaturated-polymers.html

Innovative Technique Transforms Microplastics Into Graphene
https://www.jcu.edu.au/news/releases/2024/august/breakthrough-to-combat-microplastics

Researchers discover smarter way to recycle polyurethane
https://phys.org/news/2024-08-smarter-recycle-polyurethane.html

Living plastics: A new solution for plastic degradation through synthetic biology
https://phys.org/news/2024-08-plastics-solution-plastic-degradation-synthetic.html

Chemical plastics recycling is ready to go: Researchers show that it's all about the stirring
https://phys.org/news/2024-08-chemical-plastics-recycling-ready.html

Catalytic process vaporizes plastic bags and bottles, yielding gases to make new, recycled plastics
https://phys.org/news/2024-08-catalytic-vaporizes-plastic-bags-bottles.html

Researchers unlock cheap way to vaporize plastic and use it to make more plastic
https://www.techspot.com/news/104521-researchers-unlock-cheap-way-vaporize-plastic-use-make.html

Researchers use carbon nanotube derivatives to strengthen recyclable plastics
https://phys.org/news/2024-09-carbon-nanotube-derivatives-recyclable-plastics.html

Advances in processable natural biopolymers: Cellulose, chitosan, eggshell membrane and silk fibroin
https://phys.org/news/2024-09-advances-natural-biopolymers-cellulose-chitosan.html

Bacteria-derived enzyme shows potential for polyethylene biodegradation
https://phys.org/news/2024-10-bacteria-derived-enzyme-potential-polyethylene.html

UK startup creates ‘smart’ plastic that self-destructs in the sea
https://envirotecmagazine.com/2024/10/04/university-of-edinburgh-startup-creates-smart-plastic-that-self-destructs-in-the-sea/

Plastic-eating enzyme identified in wastewater microbes
https://techxplore.com/news/2024-10-plastic-enzyme-wastewater-microbes.html

Rice researchers bioengineer mussel-inspired sticky microorganisms to help break down plastic waste
https://news.rice.edu/news/2024/rice-researchers-bioengineer-mussel-inspired-sticky-microorganisms-help-break-down

Bagheri to leverage recycled polyurethane foam for real-world applications
https://www.eurekalert.org/news-releases/1062864

Comments