Mechanical and Thermal Properties of Mixed PE Fractions from Post-Consumer Plastic Packaging Waste
Journal article, 2022

The functional properties of recycled post-consumer flexible polyethylene packaging waste have been studied using materials collected and sorted at a large-scale facility in Sweden. The studied fraction was used both as received and after simple laboratory washing in water with added sodium hydroxide at 40 °C. The materials were melt-compounded with a twin-screw extruder using two different temperature profiles and two screw configurations and injection-molded into slabs, whose thermal and mechanical properties were assessed. The results showed that the mechanical properties of injection-molded samples were not changed significantly either by the washing or by the temperature or screw configuration used in the compounding. Washing reduced the viscosity and molecular mass to a minor extent. As expected, the ash content of the compounded pellets was reduced by washing. The thermo-oxidative stability decreased with increasing compounding temperature and with washing.

mechanical properties


plastics recycling

post-consumer plastic packaging waste



Ezgi Ceren Boz Noyan

Chalmers, Industrial and Materials Science, Engineering Materials

Abhijit Venkatesh

Chalmers, Industrial and Materials Science, Engineering Materials

Antal Boldizar

Chalmers, Industrial and Materials Science, Engineering Materials

ACS Omega

24701343 (eISSN)

Vol. 7 49 45181-45188

Återvinning av insamlad plast från förpackningar

Plastkretsen (PK) AB:s Stiftelse för forskning (-), 2020-06-01 -- 2024-12-31.

The influence of washing parameters on the mechanical performance of recycled plasticspackaging

Norwegian Retailers' Environment Fund (ID11297), 2021-02-01 -- 2022-01-31.

Driving Forces

Sustainable development

Subject Categories

Materials Engineering

Polymer Technologies

Areas of Advance

Materials Science



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