Securipack project

Secure design of food contact packaging

Permanent BioDyMIA staff involved

Dr. Catherine Joly
Amandine Cottaz

Non permanent BioDyMIA staff involved

 Benjamin Risse


   AuRA 2017


Industrial partners:

Technical center :


Laboratories :

  • MP Saint Etienne (UMR CNRS 5223)
  • Institut des Sciences Moléculaires d’Orsay (UMR CNRS 8214)


The aim will be to characterize and understand the effect of the trapping of additives (stabilizers, processability aids, ...) in the polymer material (mainly polyethylene) on the diffusion / migration properties.

A first step will be to "formulate" the materials by shaping them under different conditions in order to modulate the location of the additives in the microstructure of the material (critical crystallization step). The formulations will include molecular molecules of various molecular characteristics that will serve as probes.
At the end of this step, the formulated materials will be characterized in the solid state in order to qualify the location (s) of the additives in the microstructure of the semi-crystalline materials. The additives will be localized by superposition of microscopy images in polarized light and UV / fluorescence, see by diffusion techniques (neutrons for example). It will be a question of establishing a model of correlation between the conditions of formulation / process of the material, the characteristics of the substance (cf mass and polarity), and its localization in the microstructure. On the other hand, the project will include a component describing the transfer kinetics of additives as a function of their location in the microstructure. It will explore the functionality of different types of additives based on their quantity and dispersion in the matrix.