Plus d'info sur IFP Energies nouvelles - Lyon
Stage Sciences des Matériaux Rhône dès que possible 5 mois
IFP Energies nouvelles (IFPEN) est un acteur majeur de la recherche et de la formation dans les domaines de l’énergie, du transport et de l’environnement. De la recherche à l’industrie, l’innovation technologique est au cœur de son action, articulée autour de quatre priorités stratégiques : Mobilité Durable, Energies Nouvelles, Climat / Environnement / Economie circulaire et Hydrocarbures Responsables.
Dans le cadre de la mission d’intérêt général confiée par les pouvoirs publics, IFPEN concentre ses efforts sur :
Partie intégrante d’IFPEN, l’école d’ingénieurs IFP School prépare les générations futures à relever ces défis.

Plastic recycling is one of the main challenges of the energy transition. Plastics are widely used in many fields (automotive, packaging, and housing) and generate a huge quantity of waste. As mechanical recycling is typically accompanied by degraded plastic properties, chemical recycling (dissolution, depolymerization or conversion) is needed to develop a circular economy, in which purified monomers and/or polymers can be used in similar applications as the virgin material, which is produced from fossil fuels. Moreover, the final chemical recycled product must fulfill specifications in function of each application.
Very recently, the legislation (Stockholm Convention, REACH, ...) for plastics materials and especially for food contact materials (FCM) pay attention to Per- and polyfluoroalkyl substances (PFASs) because of their persistence and human health consequences. These compounds are mainly used as fire retardants, processing aids, fluorination treatment and moisture resistance. However, the exact nature and amount of PFASs present in the plastic waste to be recycled are difficult to predict and are still unknown.
To overcome this huge analytical issue, this project proposed to develop selective extraction methods for PFASs associated to a specific Fluorine (F) method by tandem mass spectrometry inductively coupled plasma (ICP-MS/MS). Combustion ion chromatography (CIC) will be also used to evaluate the F mass balance in plastics. Trace analysis of PFASs, the minimization of F pollutions and the complexity of plastic samples will make this project as very challenging for the student.
The quantification of F in plastic samples is clearly missing to fulfill both the future legislation in chemical recycling of plastics and the future specifications of IFPEN processes. The main objective of the project is to propose an Interlaboratory and inter-method study on total fluorine in plastics.
The scientific methodology is the following:
Bac+5 student (Master or engineering school) in analytical chemistry or materials engineering.
Stage Sciences des Matériaux Rhône entre mars et avril 2027 6 mois
Stage Sciences des Matériaux Rhône entre février et juillet 2027 de 5 à 6 mois
Stage Sciences des Matériaux Rhône entre février et juillet 2027 de 5 à 6 mois
Stage Sciences des Matériaux Rhône entre mars et août 2027 6 mois
Stage Sciences des Matériaux Rhône mars 2027 6 mois
IFP Energies nouvelles - Lyon
Fabien CHAINET