Application of Mineral-Based Materials in Electromagnetic Interference Shielding
محورهای موضوعی : Applied Nanomaterials and smart polymers
1 - Department of Mining and Petroleum Engineering, ST.C, Islamic Azad University, Tehran, Iran
کلید واژه: Electromagnetic interference (EMI) shielding, mineral nanoparticles, polymer nanocomposites, smart textiles, conductive fabrics, sustainable materials ,
چکیده مقاله :
electromagnetic radiation, raising critical concerns about health, data security, and device reliability. Consequently, electromagnetic interference (EMI) shielding has become indispensable in sectors ranging from aerospace and healthcare to consumer electronics and wearable technology. While metals like copper and aluminum remain benchmarks for shielding effectiveness (SE), their high density, susceptibility to corrosion, and inherent rigidity severely limit their suitability for next-generation flexible and lightweight applications. In response, mineral-based materials—including layered silicates, transition metal oxides, magnetic ferrites, and conductive mineral hybrids—have surfaced as sustainable, low-cost, and multifunctional alternatives. This comprehensive review examines the pivotal role of mineral-derived nanomaterials in enhancing EMI shielding within polymer matrices and textile architectures. Beyond a conventional survey, this work provides a novel synthesis by establishing a direct design pathway from mineralogical properties to textile-specific shielding performance. We uniquely dissect the shielding mechanisms (reflection, absorption, multiple internal reflections) and link them to the distinct electromagnetic signatures of specific minerals such as montmorillonite, hematite, magnetite, graphite, mica, and lapis lazuli derivatives. A significant innovative focus is placed on the critical translation of these materials into wearable textiles, where we analyze the unique set of requirements and challenges, including the conductivity-comfort trade-off, durability, and launderability. The review culminates in outlining future directions for developing eco-friendly, high-performance shielding textiles that are deeply rooted in natural mineral heritage.
electromagnetic radiation, raising critical concerns about health, data security, and device reliability. Consequently, electromagnetic interference (EMI) shielding has become indispensable in sectors ranging from aerospace and healthcare to consumer electronics and wearable technology. While metals like copper and aluminum remain benchmarks for shielding effectiveness (SE), their high density, susceptibility to corrosion, and inherent rigidity severely limit their suitability for next-generation flexible and lightweight applications. In response, mineral-based materials—including layered silicates, transition metal oxides, magnetic ferrites, and conductive mineral hybrids—have surfaced as sustainable, low-cost, and multifunctional alternatives. This comprehensive review examines the pivotal role of mineral-derived nanomaterials in enhancing EMI shielding within polymer matrices and textile architectures. Beyond a conventional survey, this work provides a novel synthesis by establishing a direct design pathway from mineralogical properties to textile-specific shielding performance. We uniquely dissect the shielding mechanisms (reflection, absorption, multiple internal reflections) and link them to the distinct electromagnetic signatures of specific minerals such as montmorillonite, hematite, magnetite, graphite, mica, and lapis lazuli derivatives. A significant innovative focus is placed on the critical translation of these materials into wearable textiles, where we analyze the unique set of requirements and challenges, including the conductivity-comfort trade-off, durability, and launderability. The review culminates in outlining future directions for developing eco-friendly, high-performance shielding textiles that are deeply rooted in natural mineral heritage.
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