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61,005 resultsShowing papers similar to Processing System for Plastic Bottle to Obtain Polyethylene Terephthalate Filament in 3D Printers
ClearExtrusion and Characterization of Recycled Polyethylene Terephthalate (rPET) Filaments Compounded with Chain Extender and Impact Modifiers for Material-Extrusion Additive Manufacturing
Researchers developed recycled PET plastic filaments with improved mechanical properties for use in 3D printing, by adding chain extenders and impact modifiers during processing. Converting plastic waste into 3D printing feedstock offers a pathway to upcycle PET bottles that would otherwise fragment into microplastics in the environment.
3D-Printed recycled polyethylene terephthalate (PET) sandwich structures – Influence of infill design and density on tensile, dynamic mechanical, and creep response
Researchers 3D-printed structural components using filament made from recycled plastic bottles (PET) and tested different internal geometric patterns to find the strongest design, demonstrating that circular economy approaches — turning plastic waste into useful manufactured parts — can produce materials with good mechanical properties while reducing plastic pollution.
Study on PET Recovery from Polymeric Mixtures, Using the Floatation Technique, and Valorization of the Collected Particles by Dyeing Them
Researchers developed and tested a flotation-based process to separate PET plastic flakes from mixed polymer waste, then tested whether the recovered PET could be dyed for reuse as textile fiber. Improving the purity and value of recycled PET reduces the amount of plastic that ends up in environments where it fragments into microplastics.
Post-Consumer Recycling of Polymers for Sustainable 3D Printing Filament Material
This study investigated using post-consumer recycled plastic to make 3D printing filaments as an alternative to virgin polymer materials. Recycling plastics into new products reduces the amount of plastic that enters the environment and eventually degrades into microplastics.
Sustainable Management of Microplastic Pollutions from PET Bottles: Overview and Mitigation Strategies
Researchers reviewed the environmental impact of PET bottle degradation and strategies for managing the resulting microplastic pollution. The study highlights that PET bottle usage continues to grow, and its breakdown releases low-molecular-weight compounds and microplastics, while outlining mitigation approaches including improved recycling and waste management practices.
Repurposing polyethylene terephthalate (PET) waste as an antibacterial packaging material
Researchers repurposed PET plastic waste by integrating antimicrobial agents during reprocessing, creating antibacterial packaging material from recycled PET that inhibits bacterial growth — demonstrating a circular economy approach that adds functional value to plastic waste.
Extrusion and characterization of recycled polyethylene terephthalate (rPET) filaments compounded with chain extender and impact modifiers for material-extrusion additive manufacturing
Researchers extruded recycled polyethylene terephthalate (rPET) filaments with chain extenders and impact modifiers for use in material-extrusion 3D printing, finding improved mechanical properties compared to unmodified rPET. Upcycling waste PET into 3D printing feedstock offers a circular economy approach to reducing plastic waste that leaks into the environment.
Process parameter optimization for waste polyethylene terephthalate bottle depolymerization using neutral hydrolysis
Researchers optimized process parameters for the neutral hydrolysis depolymerization of waste polyethylene terephthalate (PET) bottles as a chemical recycling strategy to address growing plastic waste accumulation in landfills. The study identified key conditions that improve depolymerization efficiency, offering a pathway to recover high-quality monomers from post-consumer PET.
Catalytic Amounts of an Antibacterial Monomer Enable the Upcycling of Poly(Ethylene Terephthalate) Waste
Scientists developed a new method to recycle PET plastic waste (commonly used in bottles) into high-value antibacterial material using only small amounts of a special monomer. This approach addresses both plastic pollution and the need for antimicrobial materials, while avoiding the biotoxicity problems of traditional metal-based antibacterial agents. The technique represents a promising way to upcycle plastic waste rather than simply discarding it.
A Multi-Streamline Approach for Upcycling PET into a Biodiesel and Asphalt Modifier
Researchers developed a multi-stream process to upcycle PET plastic waste into biodiesel precursors and asphalt modifiers. The soluble fraction served as a carbon source for microbial fermentation to produce lipids, while the insoluble fraction was used as an asphalt additive, demonstrating a comprehensive approach to converting plastic waste into valuable products.
A Revision for the Different Reuses of Polyethylene Terephthalate (PET) Water Bottles
This review examined different strategies for reusing polyethylene terephthalate (PET) water bottles, highlighting their significant carbon footprint and waste generation while exploring sustainable recycling and repurposing approaches to reduce plastic pollution.
Process development for PETase production and purification
Researchers developed a production and purification process for PETase, an enzyme capable of breaking down polyethylene terephthalate (PET) plastic biologically, as an alternative to inadequate mechanical and chemical recycling methods for mixed and contaminated PET waste. The study addresses the global plastic pollution crisis by advancing the scalability of enzymatic PET degradation as a sustainable recycling pathway.
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.
Material Characterizations of the Polymers Reinforced with Recycled Flexible Plastic Blends as Filament for 3D Printing
Researchers characterized polymer blends made from recycled flexible plastics mixed with high-density polyethylene and polypropylene for use as 3D printing filaments. The study found that incorporating recycled plastic into filament materials is technically feasible, offering a potential pathway to reduce plastic waste by converting single-use plastics into useful manufacturing materials.
Synthesis and Characterization of Electrospun Fiber from Polyethylene Terephthalate Bottle Waste
Researchers converted PET bottle waste into electrospun fibers — thin filaments with diverse industrial applications — as an approach to recycling plastic waste. Transforming PET waste into useful fibers prevents it from fragmenting into microplastics in the environment.
Roadmap to sustainable plastic waste management: a focused study on recycling PET for triboelectric nanogenerator production in Singapore and India
Researchers compared plastic waste recycling systems in Singapore and India to evaluate the potential for turning recycled PET plastic bottles into energy-harvesting devices, finding that each recycling cycle causes a roughly 30% drop in material performance and 65% loss in economic value, underscoring the need for stronger recycling infrastructure.
Fused deposition modelling approach using 3D printing and recycled industrial materials for a sustainable environment: a review
Researchers reviewed the use of fused deposition modelling (FDM) 3D printing as a strategy for repurposing industrial plastic waste, examining how recycled polymer materials can be processed into filaments and printed into new objects to reduce environmental plastic accumulation.
Advanced Plastic Waste Recycling—The Effect of Clay on the Morphological and Thermal Behavior of Recycled PET/PLA Sustainable Blends
Researchers prepared blends of recycled PET and bio-based polylactic acid (PLA) with clay additives, finding that clay incorporation affects the morphological and thermal properties of the mixed plastic, with implications for improving PET/PLA recycling compatibility.
Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach
Researchers developed an automatic PLA filament extruder and used a design-of-experiments approach to optimize process parameters for recycling waste polylactic acid (PLA) from 3D printing into new filaments, demonstrating a viable circular approach to reducing PLA waste.
Ignored microplastic sources from plastic bottle recycling
Researchers measured microplastic generation and fate in three facilities that recycle post-consumer PET bottles into flakes, finding microplastic concentrations in production wastewater ranging from 23 to 1,836 milligrams per liter. Overall wastewater removal ranged from 53% to 99.6% by mass, with the remainder concentrated in sludge, revealing plastic recycling facilities as a poorly recognized source of microplastic pollution.
Biodegradation of Poly(Ethylene Terephthalate) Microplastics by Baceterial Communities From Activated Sludge
Scientists isolated bacteria from wastewater treatment sludge that can biodegrade PET plastic, used in plastic bottles and food packaging. The bacteria broke down PET microplastics over a 60-day period, pointing toward a potential biological tool for removing plastic contamination from water treatment systems.
Biodegradation of Poly(Ethylene Terephthalate) Microplastics by Baceterial Communities From Activated Sludge
Scientists isolated bacteria from wastewater treatment sludge that can biodegrade PET plastic, used in plastic bottles and food packaging. The bacteria broke down PET microplastics over a 60-day period, pointing toward a potential biological tool for removing plastic contamination from water treatment systems.
Examining and identifying bacteria-mediated polyethylene terephthalate bottle waste degradation Byprops
Researchers isolated Bacillus subtilis from PET plastic waste dump sites and demonstrated that the bacterium can degrade polyethylene terephthalate microplastics over six months, with UV-pretreated PET showing the most pronounced changes including new alkyl aryl ether and alkene groups detected by FTIR and GC-MS. The findings suggest soil bacteria could offer a biodegradable solution for eliminating PET from plastic-contaminated sites.
Mechanochemical and Mechanobiological Recycling of Postconsumer Polyethylene terephthalate (PET) Plastics under Microwave irradiation: A comparative study.
Researchers developed a rapid mechanical pretreatment using microwave irradiation to improve PET plastic recycling under mild, environmentally friendly conditions. More efficient PET recycling reduces the amount that ends up in landfills or the environment, where it breaks down into microplastics.