Recycling plastic accessories produced by 3D printing used in the context of radiation oncology

Description

The project seeks to gain more basic knowledge of the recyclability of the plastic used in a medical context. By focusing on the particular context of 3D printed boluses for radiation therapy in cancer patients, the initiative will assess the influence of recycling processes and radiotherapy treatments on the structure and properties of the material (PLA, polylactic acid) before it is reused in treatment.

The project has three sub-objectives:

  1. Determine the extent to which repeated shredding-extrusion-3D printing shaping affects the properties of PLA.
  2. Determine the influence of radiation treatment (i.e., repeated application of high-energy photons or electrons) and the regular application of cleaning agents on the polymer’s properties.
  3. Evaluate the combined effect of shaping and radiotherapy treatment on the recyclability of PLA.

Themes

  • Medical community
  • Plastic
  • Polymer
  • Processes
  • Recycling

Affiliated research axes

Axis 2: Planning Optimization

Axis 3: Resource and Product Maximization

Member(s)

  • Lucas Hof

    Professor
  • Nicole Demarquette

    Ph.D. Professor

Collaborators

Stéphane Bedwani

CHUM

François De Blois

CHUM

Karim Zerouali

CHUM

Amount granted

$15,000
Development of sustainable composites from used eggshells for practical applications using additive manufacturing in the context of the circular economy

Description

The main objective of the research project is to develop a biobased polymer composite material (PLA) made of eggshell particles with improved thermal, mechanical and biodegradable properties to support Canada’s rapid prototyping and egg processing sectors as they move towards sustainable products and circular manufacturing initiatives, to create value for eggshell waste and to develop a manufacturing process for 3D biopolymer printing feedstock containing eggshell particles as filler. The composite materials will be characterized for their thermal, mechanical and biodegradable properties. The specific objectives of the four-year project are to:

  1. Identify the ideal eggshell particle size, weight fraction and surface coating to produce polylactic acid/eggshell composites by additive manufacturing using standard low-cost fused filament forming (FFF) 3D printers.
  2. Improve the biodegradability of polylactic acid composites by reducing degradation time through the addition of compostable additives and by exploring their impact on the mechanical properties.
  3. Determine the recyclability of the developed eggshell-filled polymer composite filaments.

Themes

  • Ecodesign
  • Innovation
  • Organic materials
  • Polymer

Affiliated research axes

Axis 2: Planning Optimization

Axis 3: Resource and Product Maximization

Collaborators

Duncan Cree

Université de la Saskatechwan

Christine Ferland

Nutrigroupe

Jean-Philippe Leclair

ÉTS Montréal

Amount granted

$15,000
The RRECQ is supported by the Fonds de recherche du Québec.
Fonds de recherche - Québec