Sustainability of Polycarbonate Recycling Via Additive Manufacturing

Strategic Insights -

New research from the University of Edinburgh, supported by the Royal Academy of Engineering Industrial Fellowship, has shed light on the potential of polycarbonate (PC) in a circular economy. The study, published in the journal Cirp Annals-manufacturing Technology, investigates the technical feasibility, carbon footprint, and economic impact of recycling injection moulding PC waste via fused deposition modelling (FDM) at a biotechnology manufacturer plant in the UK. The research found that recycling moulded PC scrap using FDM yields 3D printed parts with 88-98% of virgin PC mechanical properties, produces nearly 70% less carbon footprint, and saves up to 88% of costs compared to utilizing virgin PC material.

Key Takeaways:

  • The study, conducted by researchers at the University of Edinburgh, focused on the technical feasibility, carbon footprint, and economic impact of recycling injection moulding PC waste via FDM.
  • The research found that recycling moulded PC scrap using FDM yields 3D printed parts with 88-98% of virgin PC mechanical properties.
  • The carbon footprint of recycling PC waste via FDM was found to be nearly 70% less compared to traditional methods.
  • Recycling PC waste via FDM resulted in cost savings of up to 88% compared to using virgin PC material.
  • The study highlights the potential of PC in a circular economy and the need for further investigation into its applications.
  • Authors of the study include Nan Yu, Yifan Yuan, Ruslan Melentiev, Long Ye, Zicheng Zhu, James Tinkler, Lukas Raddatz, and Stephen T. Newman.

Statistics:

  • 88-98% of virgin PC mechanical properties were achieved in 3D printed parts using FDM.
  • Nearly 70% less carbon footprint was produced by recycling PC waste via FDM.
  • Recyling PC waste via FDM resulted in cost savings of up to 88% compared to using virgin PC material.
  • The study was published in the journal Cirp Annals-manufacturing Technology, Volume 74, Issue 1, Pages 61-65.
  • The Royal Academy of Engineering Industrial Fellowship provided financial support for the research.

Sources:

  • NewsRx. Findings from University of Edinburgh Yields New Data on Sustainability Research (Sustainability of Polycarbonate Recycling Via Additive Manufacturing). Ecology, Environment & Conservation. August 29, 2025; p 123.
  • Cirp Annals-manufacturing Technology. Sustainability of Polycarbonate Recycling Via Additive Manufacturing. Volume 74, Issue 1, Pages 61-65.