Background Information
The Biobased Building Blocks & Products (BBBP) research group at MNEXT focuses on developing sustainable materials, including innovations for reducing waste in the textile and fashion industry.
In this project, MNEXT collaborates with Ft Innovations and Saxion to investigate whether PET textile materials can be effectively decolorised using supercritical CO₂. This technology has the potential to remove dyes without degrading the polymer, making textile fibres suitable for high-quality recycling.
The goal of the project is twofold:
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Achieving effective decolorisation, and
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Ensuring that PET retains its mechanical and thermal properties, allowing it to be reused in high-value textile applications.
Assignment Description
In this internship, you will work with supercritical CO₂ equipment and develop methods to characterise the polymer before and after decolorisation.
Your tasks may include:
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Performing experimental work with supercritical CO₂ extraction equipment
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Developing and applying characterisation methods for PET
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Comparing polymer properties before and after treatment
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Working with analytical techniques such as:
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Tensile testing
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GPC
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DSC
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TGA
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Conducting literature research on PET recycling, dye removal and supercritical CO₂ processes
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Documenting results and writing a clear research report
Research questions
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How effectively can PET textiles be decolorised using supercritical CO₂?
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How can the polymer’s mechanical and thermal properties be preserved during the process?
Desired Skills
We are looking for a student with:
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Background in chemical engineering (preferred) or chemistry
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Experience or interest in experimental lab work
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Ability to work with analytical techniques and characterisation methods
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Motivation to work on sustainable textile recycling pathways
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Good reporting and documentation skills
Supervision
The internship will be supervised by Wim Gaakeer, with regular meetings to review progress, results and next steps.
Practical Details
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Compensation: €350 per month
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Working language: English