Conception, mise en oeuvre et caractérisation de nouveaux bio-nano-matériaux fonctionnels.

Abstract : New functional materials, called active materials, are developing with different processes and for several applications. The target is to give new functions like virus detection, active substance release, end of life control...This topic is more and more important in our society and industry. Researches are still rare and more scientific expertise is expected. Meanwhile, use of biobased materials interests more and more scientists. Among biomaterials, the use of bionanoparticles is strongly increasing and high value added applications are targeted. However, their use in release control of active substances has not yet been studied in detail in spite of promising results on barrier properties improvement. Their very high specific area could also be considered as a advantege concerning their use as active material carrier. In packaging field, active materials are materials which change condition of packed product to increase its shelf life by keeping quality and safety. Three main types of active packaging are existing : scavenger systems (02, humidity), anti-microbial systems, barrier systems. Some research studies have just been launched about the two first categories of active packaging with some promising results. The target is then to understand and develop innovative functional bionanomaterials by considering : sustainability and safety. Three topic will be studied in detail : - Biomaterials : cellulose fibers, bionanoparticules (NFC, Wh, SNP), active biomolecules - Process : grafting, encapsulation chitosane, coating, extrusion, ink jet - Properties : 02 scavenger, anti-microbial system, food contact A better understanding of migration and the end-use properties characterization will be main point of the scientific research during the project. Different strategies will be tested and optimisation of best solution will follow by finishing with an up-scaling study.
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Nathalie Lavoine. Conception, mise en oeuvre et caractérisation de nouveaux bio-nano-matériaux fonctionnels.. Autre. Université de Grenoble, 2013. Français. ⟨NNT : 2013GRENI042⟩. ⟨tel-01124263⟩

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