Mines Paris – PSL and Sidel: innovating for sustainable packaging with bio-sourced and recycled materials

Ecological transition Research Brief
Published on 26 August 2024
Depuis plus de deux décennies, Mines Paris – PSL et Sidel collaborent pour repousser les limites des matériaux d’emballage. Face aux défis environnementaux actuels, leur partenariat s’oriente désormais vers des solutions plus durables, axées sur les matériaux biosourcés et recyclés.

A long-standing partnership in the service of innovation


Since the early 2000s, Sidel, an expert in packaging solutions, has been working with the Centre de mise en forme des matériaux (CEMEF) at Mines Paris – PSL to better understand and improve the polymers used in packaging. Initially focused on optimizing productivity and lightening the weight of PET packaging, this collaboration has gradually shifted towards ecological concerns, particularly in response to new European regulations aimed at reducing the use of single-use plastics.


Exploring the potential of bio-based materials


One of the major advances to come out of this collaboration is the study of PEF (polyethylene furanoate), a 100% biosourced polymer derived from fructose, developed in partnership with Avantium and supported by ADEME. CEMEF researchers, in collaboration with Sidel teams, investigated whether PEF could replace PET in packaging, while retaining essential mechanical and thermal properties. The project not only produced prototype PEF packaging, but also provided a better understanding of the adaptations needed to industrial equipment for this new material.


PET recycling: a new challenge


In addition to biobased materials, the partnership also focused on PET recycling. Sidel has invested in a mechanical recycling line, enabling researchers to analyze the impact of recycling on PET properties. These studies, conducted in part by CEMEF teams, have opened up new prospects for the use of rPET (recycled PET) in packaging, while raising questions about the material’s variability and the management of contaminants introduced during recycling cycles.


Towards new perspectives


The partnership between Mines Paris – PSL and Sidel continues with post-doctoral research projects aimed at further exploring the challenges posed by contaminants in rPET. This fruitful collaboration continues to be a source of innovation, while playing an important role in the training of students, who benefit from direct contact with concrete, current industrial issues.


To find out more about this collaboration and its impact on the packaging industry, read the full Carnot M.I.N.E.S article:


Read the article


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