Recycling of a post-industrial printed multilayer plastic film containing polyurethane inks by solvent-targeted recovery and precipitation
Journal Article
·
· Resources, Conservation and Recycling
- University of Wisconsin, Madison, WI (United States)
- Iowa State University, Ames, IA (United States)
- Amcor, Neenah Innovation Center, WI (United States)
- University of Wisconsin, Madison, WI (United States); Michigan Technological University, Houghton, MI (United States)
- Michigan Technological University, Houghton, MI (United States)
The recently reported Solvent-Targeted Recovery And Precipitation (STRAP) strategy is used to deconstruct multilayer plastic packaging films into their constituent resins by selective polymer dissolution. To broaden the applicability of STRAP, we demonstrate the process with a flexible post-industrial printed multilayer plastic film used for food packaging. The material was a reverse printed film composed of polyethylene (PE), ethylene vinyl alcohol (EVOH), polyethylene terephthalate (PET), and polyurethane (PU)-based inks. Removal of all colors was observed with biomass-derived gamma-valerolactone (GVL) and the recovered polymers possessed comparable properties to the corresponding virgin resins. A technoeconomic analysis indicates that this STRAP process could be economically feasible at a processing capacity of 6,000 tons per year. Furthermore, the production of plastic films with materials recovered by this STRAP process can have a lower climate change impact than the production of films from virgin polymers.
- Research Organization:
- University of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Bioenergy Technologies Office (BETO)
- Grant/Contract Number:
- EE0009285
- OSTI ID:
- 2475634
- Alternate ID(s):
- OSTI ID: 2067636
- Journal Information:
- Resources, Conservation and Recycling, Journal Name: Resources, Conservation and Recycling Vol. 197; ISSN 0921-3449
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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