Recycling of polypropylene by supercritical <scp>carbon dioxide</scp> for extraction of contaminants from beverage cups. A comparison with polyethylene terephthalate and polylactic acid

Abstract

Results indicate that scCO₂ can be used to decontaminate post-consumption PP beverage cups with higher DEs than those for PET and PLA, applying mild processing conditions. © 2022 Society of Chemical Industry.