TOPIC: Nanotechnologies
Date: 27th March 2024
Speaker: Joao Rodrigues | GRAPHENEST | Short Bio - https://www.linkedin.com/in/jndrodrigues/
“From large scale production to application: A spotlight on graphene's role in EMI shielding technologies.”
Abstract: “Since 2004, the journey from laboratory-scale synthesis to the successful large-scale industrial production and market implementation of graphene has been a substantial and enduring process. Top-down methods, such as liquid-phase exfoliation of bulk graphite, are recognized as the most suitable and cost-effective techniques for practical implementation. Graphenest developed in 2015 an innovative technology to produce graphene through a liquid-phase exfoliation methodology using ultrasonic cavitation assisted by high-shear mixing and is focused on developing and providing innovative conductive materials with extended applications, such as electromagnetic interference (EMI) shielding materials.
EMI is considered a potential and major source of operational problems, including reduced performance and lifetime of components and equipment, especially in a world where electronic devices are becoming increasingly ubiquitous. Current shielding materials used to protect electronic devices from EMI are based on dense, brittle, and expensive metals, while the major EMI applications have a huge demand for flexible, additive, lightweight, and low cost materials. This is critical, for instance, in several vehicle industries, from hybrid and electrical cars to aeroplanes, where weight reduction is essential to increase autonomy and reduce carbon footprint. Graphene and its related materials are considered the most promising and effective candidates for effective EMI shielding due to their excellent electrical properties, extremely high specific surface area, and unprecedented strength-to-weight ratio.”
