.png){kind=icon}
Return
Integrated Selective Depolymerization and Downstream Processing for Mixed Polyester Waste, Part 1
.png){kind=icon}
OA
AI
DOI：10.1002/cite.70075.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
The chemical recycling of polylactic acid (PLA) and polyethylene terephthalate (PET) mixtures by alkaline hydrolysis is investigated. Like most solvolysis processes, hydrolysis lacks selectivity, yielding dilute monomer mixtures that require elaborate downstream purification. To avoid downstream complexity, selective depolymerization is pursued by leveraging differences in polymer reactivity. Variation of temperature and base concentration relative to the base case (polymer-to-NaOH ratio 0.8 mol mol-1, 90 degrees C) increase selectivity by 17% and 14%, respectively, at the expense of reaction kinetics. The addition of a co-solvent increases selectivity by 19% while reducing reaction time for PLA by 98%. These findings suggest that sequential depolymerization of PLA and PET can be attained by choosing suitable operating conditions.
Keywords:
chemical recycling
hydrolysis
polyethylene terephthalate
polylactic acid
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
1.6
Papers:
142
Citations:
3.5K
Organization
Cited Papers
Green chemistry and the plastic pollution challenge: towards a circular economy.png)
GREEN CHEMISTRYOAAI
GREEN CHEMISTRYIF9.2
OAAIShareSaveShareSaveEngineering terephthalic acid product from recycling of PET bottles waste for downstream operationsOAAI
OAAIShareSaveBio-Polyethylene (Bio-PE), Bio-Polypropylene (Bio-PP) and Bio-Poly(ethylene terephthalate) (Bio-PET): Recent Developments in Bio-Based Polymers Analogous to Petroleum-Derived Ones for Packaging and Engineering ApplicationsPolymersOAAI
PolymersIF0
OAAIShareSaveA Brief Review of Poly (Butylene Succinate) (PBS) and Its Main Copolymers: Synthesis, Blends, Composites, Biodegradability, and ApplicationsPolymers
OAAI
PolymersIF0
OAAIShareSaveZinc Oxide-Loaded Recycled PET Nanofibers for Applications in Healthcare and Biomedical DevicesPOLYMERSOAAI
POLYMERSIF4.9
OAAIShareSave
View more