NOEMR
NANO-STRUCTURED SMART HYBRID POLYMERIC COMPOSITES WITH INTERNAL ARCHITECTURE TOWARDS IMPROVING ULTRA-HIGH ABSORBANCE OF ELECTRO-MAGNETIC RADIATION
CONTEXT
With the tremendous technological developments related to the accelerated growth of the field of telecommunications and the development of electronic devices, our society is increasingly facing the problem of electromagnetic pollution.
Expected to grow even faster in the coming years, this pollution leads to interferences that disturb the proper operation of instruments and systems, posing thereby an important risk for applications and human beings and safety.
In this context, the project deals with the development of nanostructured polymeric composites with an ultra-high absorption performance of electromagnetic radiation (EMR).
The strategy relies on tailoring their internal architecture leading to an in-situ morphological structuration with local electrical/magnetic properties. Our innovative approach is to elaborate such materials through nanolayer coextrusion and injection molding process such as Forced Assembly Multi-micro/nanolayer COextrusion (FAMCO) and In-Mold Electronics (IME).
The films will be containing conductive and/or magnetic fillers and will be investigated as support for Plastronic device to be used in EMR shielding for different electronic devices (in the world of transport (land, air…), for future connected/autonomous vehicles, etc...).
OBJECTIVES
The main objective of the present study is to develop new films with a controlled nanostructure and enhanced performances such as an ultra-high absorption of electromagnetic radiation (EMR).
By using innovative design to fabricate smart hybrid materials composed of multi-nanolayers, it is targeted to increase the EMR absorption, grantee a good dispersion of conductive and/ or magnetic fillers and explore the possibility of creating oriented and homogenous structures with the said nano-fillers.
Moreover, we strive to achieve high-efficiency and robust/alternative 3D electric/magnetic fillers with an electrically conductive hybrid network showing a high orientation and ordered distribution. Therefore, we could take benefit from the confinement effect, mostly one-dimensional, resulting from the multiplication of layers.
Among the strategies to fabricate nanolayered polymer films, FAMCO has become a reliable technique for producing micro- and nanolayers in a continuous process. Based on the concept of layer multiplication, this technology renders it possible to control the layer architecture and thickness from the micro- to the nano-scale.
Dual experiments and simulations will be performed for tailoring and modeling the dielectric/magnetic properties. The results will offer some new enlightenment for fundamental understanding of layer confinement, the triggered interphases and induced structure.
The project will present new attempts to reach a high orientation and homogeneous nano-filler dispersion in the hybrid material during coextrusion followed by overmolding/ thermoforming steps by IME process.
The ambition of this project being to understand in depth the nanostructurestarting from the molecular level (nano-scale), proceeding up to microscopic dynamics and macroscopic behaviour.
MASTER 1 : IMP/MSP
Experimental work and modeling process. Numerical simulation of flow and deformations in hybrid multicomponent composites: T 2.3 and T1.2.
Status : To be recruited
MASTER 2 : UJM-LABHC/IMP/CLAYENS
Nano-structuration/processing/recycling & EMR relationships towards a better handling of IME processes: WP 4 and 5 & 6 (T6.1, T 6.2).
Status : To be recruited