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|You are here: Home > Technique > Processes > Scientific report of the LGP2 > Paper physics > Introduction||Update: July 21, 2011|
|Scientific report of the LGP2 (2006-2009)|
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|Researchers of the LGP2
The main aims of the group Physics of Fibrous Structures are to characterize, control and model the physical properties of the fibrous microstructures including physico-chemistry, thermo-hygromechanics or optics. The studied materials are issued nowadays on one hand from the paper industry (including pulps, papers, boards, wires or felts) and on the other hand from other industries, such as non wovens or composites, which aimed to use raw materials issued from the biomass.
At each step of its fabrication, converting, printing, final uses or recycling, it is necessary to improve our knowledge on these materials in order to optimize the involved industrial process. Furthermore, the improvement of the quality of the products is also often the issue of our research. Our study is consequently focused on the fiber itself, but also on the fibrous structure and the involved additives or fillers, which are integrated during the production. The evolutions of the materials during the whole process are also analyzed. It is hence necessary to develop specific experimental setups in order to describe the microstructure of these materials. The different modifications due to the process have also to be analyzed. During the last decade, this field of our research took the tremendous benefits of the X-ray synchrotron microtomography in the frame of different projects carried out at the ESRF (European Synchrotron Radiation Facility). The improved knowledge is then integrated in either theoretical or numerical approaches allowing a better prediction of the physical properties of the studied materials. The expertise developed since few years allows the transposition of the obtained results from the laboratory scale to the industrial one.
These works are carried out in cooperation with other teams of our laboratory depending on the scientific topic tackled. Furthermore, numerous scientific collaborations are developed with either french or foreign institutes or companies.
The following examples illustrate the main axes of research developed recently. We also include recent PhD thesis associated to these topics.X-Ray synchrotron microtomography is an imaging technique allowing the 3D characterization of the microstructure of materials.
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