Journal
CHEMSUSCHEM
Volume 14, Issue 19, Pages 4071-4102Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202100876
Keywords
dyes; pigments; plastics recycling; separations; solvent effects; viscosity
Funding
- C-PlaNeT (Circular Plastics Network for Training) project from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant [859885]
- Marie Curie Actions (MSCA) [859885] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
This review explores solvent-based recycling for plastic-containing waste, focusing on the viscosity behavior of polymer solutions and its impacts on filtration and centrifugation processes. Various non-Newtonian viscosity models are discussed, providing insights for handling polymer solutions at different concentrations and shear rates.
Solvent-based recycling is a promising approach for closed-loop recovery of plastic-containing waste. It avoids the energy cost to depolymerize the plastic but still allows to clean the polymer of contaminants and additives. However, viscosity plays an important role in handling the polymer solutions at high concentrations and in the cleaning steps. This Review addresses the viscosity behavior of polymer solutions, available data, and (mostly algebraic) models developed. The non-Newtonian viscosity models, such as the Carreau and Yasuda-Cohen-Armstrong models, pragmatically describe the viscosity of polymer solutions at different concentrations and shear rate ranges. This Review also describes how viscosity influences filtration and centrifugation processes, which are crucial steps in the cleaning of the polymer and includes a polystyrene/styrene case study.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available