Preparation of conducting composites based on magnetic substrates impregnated with the POMA-conducting polymer

• Grant number: 14/02551-7
• Support type: Scholarships in Brazil - Post-Doctorate
• Effective date (Start): October 01, 2014
• Effective date (End): September 30, 2016
• Field of knowledge: Engineering - Aerospace Engineering
• Principal researcher: Mirabel Cerqueira Rezende
• Grantee: Simone de Souza Pinto
• Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Federal de São Paulo (UNIFESP). Campus São José dos Campos. São José dos Campos , SP, Brazil

Abstract

The proposed research project involves the processing of radar absorbing materials, named also as RAM, using a conducting composite based on magnetic substrates impregnated, in situ, with the poly(o-methoxyabiline - POMA)conducting polymer. This study aims to contribute technical and scientifically in processing area of thinner and lighter microwave absorbers. Besides this, this project intends to contribute with the Institute of Science and Technology (ICT) of UNIFESP, São José dos Campos, nucleating the area related to both the obtaining of microwave absorbing centers and RAM processing. In this way, the implementation of this project proposal at ICT/UNIFESP will disseminate the knowledge acquired to date by the researcher during this studies at the Technological Institute of Aeronautics and the Institute of Aeronautics and Space (IAE), starting in the host institution this area of research and development, which has proved very promising due to the possible studies to be conducted. Initial studies were carried out with the support of FAPESP, in the master and doctoral levels, obtaining conducting composites based on POMA impregnated in carbon black and carbon nanotubes substrates. Very promising results have been obtained with microwave attenuation values greater than 99%. However, the challenge of making thinner absorbers motivated the proposition of this project. Accordingly, the proposed project aims to expand the studies in this area, obtaining hybrid composite conductors by combining magnetic substrates (ferrites and carbonyl iron) and POMA, which polymer is characterized by dielectric behavior. It is noteworthy that, in the literature consulted no similar studies were found using POMA. Thus, besides the novelty of this proposal, the implementation of this work will strengthen the research group of ICT/UNIFESP and also will contribute to the formation of the researcher who will have the opportunity to expand their knowledge with a new research team.

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE FARIA, PATRICK VALADAO; BACKES, EDUARDO HENRIQUE; MONTAGNA, LARISSA STIEVEN; PINTO, SIMONE DE SOUZA; PESSAN, LUIZ ANTONIO; REZENDE, MIRABEL CERQUEIRA; PASSADOR, FABIO ROBERTO. Effect of PANI on Thermal, Mechanical and Electromagnetic Properties of HDPE/LLDPE/PANI Composites. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 21, n. 1, 2018. (14/02551-7, 14/04900-9)

PASSADOR, FABIO R.; DE FARIA, PATRICK V.; BACKES, EDUARDO H.; MONTANHEIRO, THAIS L. A.; MONTAGNA, LARISSA S.; PINTO, SIMONE DE SOUZA; PESSAN, LUIZ A.; REZENDE, MIRABEL C.. Thermal, mechanical and electromagnetic properties of LLDPE/PANI composites. POLYMER BULLETIN, v. 74, n. 7, p. 2701-2717, JUL 2017. (14/02551-7, 14/04900-9)

PINTO, SIMONE DE SOUZA; REZENDE, MIRABEL CERQUEIRA. Electromagnetic, Morphological, and Electrical Characterization of POMA/Carbon Nanotubes-Based Composites. Journal of Nanomaterials, 2017. (14/02551-7, 10/09527-3)

PINTO, SIMONE DE SOUZA; BARROS MACHADO, JOAO PAULO; GOMES, NEWTON A. S.; REZENDE, MIRABEL CERQUEIRA. Influence of the aspect ratio of magnetic metallic additives on the microwave absorbing performance. MATERIALS RESEARCH EXPRESS, v. 4, n. 9, SEP 2017. (14/02551-7)

PINTO, SIMONE DE SOUZA; BARROS MACHADO, JOAO PAULO; GOMES, NEWTON A. S.; REZENDE, MIRABEL CERQUEIRA. Electromagnetic, morphological and structural characterization of microwave absorbers based on POMA/magnetic filament composites. Journal of Magnetism and Magnetic Materials, v. 449, p. 406-414, MAR 1 2018. (14/02551-7)