António Pontes
University of Minho, Portugal
CONTINUOUS FIBRE REINFORCED COMPOSITES FOR ELECTROMAGNETIC INTERFERENCE SHIELDING
Abstract:
Electromagnetic interference (EMI) is a critical problem that arises from transmitted electromagnetic energy that disrupt the operation of an electronic device. The growing number of complex electronic devices intensifies the need for alternative and more efficient shielding solutions. Additive manufacturing (AM) emerges as a promising approach to create complex geometries using materials with high shielding potential. In this work, AM Continuous Fiber Reinforcement (CFR) process was used to produce composite specimens containing continuous carbon fibre (CCF). Different build orientations and fibre deposition strategies were explored to assess their influence on electromagnetic shielding effectiveness (EMSE). The results show that specimens printed parallel to the build platform exhibited higher EMSE, ranging from 20 to 75 dB across the entire evaluated frequency range (0.03–3 GHz), whereas specimens built perpendicularly to the building platform showed EMSE below 25 dB.
Biography:
António J. Pontes is Associate Professor w/ habilitation at Department of Polymer Engineering since 2002, with a PhD in Polymer Processing and Design. He develops its teaching and research activities in the areas of design and development of polymeric products and nonconventional processing of polymers. He was Director of the Degree in Polymer Engineering (Jan 2003 – Jan 2007). He is author or co-author of 20 book chapters and more than 250 scientific publications (including articles in international journals and conferences). He coordinated more than 45 research projects including with industry. Is the responsible since 2012, from UMinho side, of the partnership coordination Bosch-UMinho. Between Jan 2011 to Fev2013 he was Director of the Polymer Engineering Department and Deputy Director between Mar 2013 and Fev 2015. Director of the Institute of Polymers and Composites, since 2024, and was Deputy Director between Oct 2013 and Fev 2016. He serves on the Board of Directors of Polo Innovation for Engineering Polymers, PIEP, since Mar 2013.