Polymer Nanocomposites for EMI Shielding Applications

The global advancement of technology and modernization poses a universal challenge, impacting various facets of human life. Nations worldwide are in a competitive pursuit of developing state-of-the-art electronic devices and gadgets, symbolizing national superiority and economic progress. However, the excessive usage of these devices gives rise to an alarming problem of Electromagnetic interference (EMI), which is proven to be harmful to human health and the performance of electronic devices parallelly. Several shielding materials have been explored over the past few decades and among them, polymer nanocomposites (PNCs) stand out as an optimal choice due to their essential properties like being flexible, lightweight, and chemically stable. Here, we provide insights into the EMI shielding mechanism and the PNC fillers widely used for efficient shielding. Contrary to the conventionally used shields, the nanofillers in the engineered PNCs can modify the properties of the polymer matrix owing to their nano dimensions. This book chapter navigates through the journey of PNCs in the era of EMI shielding, offering an ideal shift from conventionally used materials to these advanced and versatile nanoengineered materials.