Recycling of Polymer-Based Multilayer Packaging: A Review
By K. Kaiser, M. Schmid, M. Schlummer. 2017
454 citations recorded by the source corpus.
Polymer-based multilayer packaging materials are commonly used in order to combine the respective performance of different polymers. By this approach, the tailored functionality of packaging concepts is created to sufficiently protect sensitive food products and thus obtain extended shelf life. However, because of their poor recyclability, most multilayers are usually incinerated or landfilled, counteracting the efforts towards a circular economy and crude oil independency. This review depicts the current state of the European multilayer packaging market and sketches the current end-of-life situation of postconsumer multilayer packaging waste in Germany. In the main section, a general overview of the state of research about material recycling of different multilayer packaging systems is provided. It is divided into two subsections, whereby one describes methods to achieve a separation of the different components, either by delamination or the selective dissolution–reprecipitation technique, and the other describes methods to achieve recycling by compatibilization of nonmiscible polymer types. While compatibilization methods and the technique of dissolution–reprecipitation are already extensively studied, the delamination of packaging has not been investigated systematically. All the presented options are able to recycle multilayer packaging, but also have drawbacks like a limited scope or a high expenditure of energy.
Subfields: Biomaterials, Industrial and Manufacturing Engineering, Pollution
View Paper: https://www.semanticscholar.org/paper/dda8dc8e40858dc1592557c6324c632052b217fb
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In Biomaterials
- Antimo Graziano
- Shaffiq Jaffer
- M. Sain
- Kristiina Oksman
- A. Dufresne
- Mehdi Jonoobi
- Aji P. Mathew
- Fernand Pla
In Industrial and Manufacturing Engineering
In Pollution
Citations in the corpus
- Review on modification strategies of polyethylene/polypropylene immiscible thermoplastic polymer blends for enhancing their mechanical behavior (2018, methodology): “Some techniques for separation of PP and PE from mixed plastic waste streams exist, such as the delamination process or the dissolution–reprecipitation technique for the recycling of multilayer postindustrial waste.(23) The first one consists of chemical decomposition of an interlayer, while the sec”