Universidade Federal do Rio de Janeiro, PEMM/IMA Rio de Janeiro, Brazil
Bluma Guenther Soares if Full Professor at the Federal University of Rio de Janeiro. She received his Ph.D in Polymer Science in 1987 from the Federal University of Rio de Janeiro (Brazil). She spent one year at the University of Liège (Belgium) in 1992 as Postdoctoral Research Associate where she started researches in Conducting polymer composites. Then, she spent six month at the Material group of Institut National des Sciences Appliqués (INSA-Lyon/France) in 2010 hosting by Prof. Jean-François Gerard, as a Senior Researcher of CNPq/Brazil. Prof. Bluma presents H index = 44; more than 300 scientific papers and is responsible for the supervision of several Ph. D. Thesis, Master Thesis and Undergraduate work. Current research interests concern mainly in multi-function conducting polymer composites and nanostructured materials with applications as microwave absorbing materials, anti-corrosive coatings, conducting adhesives. Moreover, some researches including nanoparticles for applications in electro-rheological fluids are developing.
The wide growth in the use of sophisticated electronic and communication equipment as well as wireless transmission devices has brought a kind of invisible electromagnetic pollution that can negatively affect the operation of other sensitive electronic equipment, and also affects the human health. Therefore, developing materials that can shield and/or absorb the EM radiation has been an increasing concern. This work will focus on the development of lightweight microwave absorbing (MWA) materials based on conducting polymer composites. In this context, polymer composites loaded with dielectric (nanocarbon materials, conducting polymers) were preferred due to their easy processability, flexibility, cost effective production, corrosion resistance and low weight. For this purpose, heterogeneous polymer blends loaded with CNT, graphene and hybrids were used to achieve higher electrical conductivity and better absorbing properties with low amount of filler due to the uneven localization of the conducting filler. Emphasis has been done to materials constituted by multilayered structures including honeycomb sandwiched by two layers constituted by polymeric conducting composite. The MWA properties were evaluated in the X- and Ku-band frequency range.
Fundings: CNPq; FAPERJ..
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