The important objective of the polymer industry to supply the market with sustainable polymers offers a challenging playground for researchers, as some possible candidates (Polysaccharides or some Polyamides) show macroscopic properties governed by polar interactions that are not correctly described. In this context, the LPMA is developing a research activity based on both theory/simulation and experimental investigations on dynamical properties.
Nanocomposites materials have been the subject of many studies over the past decade due to their promising potentials in various areas as mechanical reinforcement, functional materials, electronic, biomaterials... But to reach its full potential, the nanocomposites must present a very good dispersion of the filler: for example any agglomerate can dramatically impair the transparency of the material or the mechanical properties. Our general objective is then to develop a global competency and an understanding scheme (based on interactions and rheological parameters) on filler dispersion in a large range of polymers.
Polymer blends, polymer/solvent solutions or filled polymers are characterized by a strong interdependence between process, morphology/structure and properties. From filled elastomer for the tire business to polymer blends for barrier applications, the industrial implications of understanding this fine dependences are high. We address this question by working on mechanical or rheological properties (impact strength, wear, fatigue….) coupled with fine microscopic characterization both experimental and theoretical