Impact of EVOH, Ormocer^® Coating, and Printed Labels on the Recyclability of Polypropylene for Packaging Applications.

ABSTRACT: Flexible packaging often consists of multilayer films that combine different materials to achieve high barrier performance, but these structures are incompatible with current recycling technologies. Polyolefins such as polypropylene (PP) offer more recyclable alternatives but require additional oxygen-barrier materials that do not compromise recyclability. This study investigates the influence of ethylene vinyl alcohol (EVOH), Ormocer^® barrier coating, and PP labels with different adhesives on PP recyclability. Recyclates were produced using twin-screw extruder to simulate the recycling process and then injection-molding to make tensile test specimens. Mechanical properties, melt flow rate (MFR), oxygen induction time (OIT), and odor were evaluated. Findings showed that low labe

SUBMITTER: Schmiedt R 

PROVIDER: S-EPMC12737107 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature