Nanotechnology Enabled, Lightweight EMI Shielding Fabrics for use with Soft Walled Shelters

The successful execution of this Phase I initiative will develop an optimized electromagnetic interference (EMI) and radio frequency interference (RFI) shielding fabric by electrodepositing metallic micro-layers of copper and a newly developed nanocrystalline ferromagnetic shielding alloy (Nanovate EM) a lightweight polymeric fabric, such as PET, and applying a final layer of paint. By this design, mid to super-high frequency EMI/RFI radiation will be shielding by the copper micro-layer, while low to mid frequency EMI/RFI radiation will be shielding by the Nanovate EM micro-layer. Additionally, the Nanovate EM layer will provide strength, durability, and wear resistance. The final paint layer will be applied for lightweight corrosion protection, mildew resistance, and to meet the color requirements. The primary acceptance criteria for this Phase I proposal will be a demonstration that the shielding fabric complies with the physical performance specifications (outlined by MIL-PRF-44103D) and the EMI/RFI shielding performance specifications while maintaining a weight less than 15 oz/yd2 and a full-scale production cost less than 30 $/yd2. It is anticipated that the Nanovate EM enabled fabric design will provide the necessary performance properties to meet the product requirements.