Humidification of high-performance and multifunctional polyimide/carbon nanotube composite foams for enhanced electromagnetic shielding

Proton Donor-Regulated Mechanically Robust Aramid Nanofiber Aerogel Membranes for High-Temperature Thermal Insulation

“…Decreasing heat transfer through advanced thermal insulators is an effective way to improve energy efficiency and reduce the world’s total energy consumption. − Thermal insulation is also urgently needed for many personal thermal protection systems in harsh environments. So far, a variety of advanced thermal insulators have been developed, including mineral wool, fiberglass, polymer-based foams, and aerogels. ,− Among them, aerogel-based nanoporous materials are considered to be one of the ideal candidates due to their high porosity, large surface area, low apparent density, and low thermal conductivity. − Although the development of inorganic aerogels ( e . g ., silica-based aerogels) is predominant in aerogel products, the application of traditional inorganic aerogels for thermal insulation is severely limited due to the drawbacks of their inherent brittleness and highly collapsible structure …”

Hydro-tunable CZTO/SWCNT/PVA/PDMS hybrid composites for smart green EMI shielding

“…In recent decades, the electromagnetic interference (EMI) pollution problem has emerged as a great concern owing to the worldwide explosive growth of electronic and communication technologies and the subsequent proliferation of electronic devices and components. [1][2][3][4] This pollution seriously jeopardizes the normal operation of electronic equipment as well as the health of living organisms; thus, there is an urgent need to develop high-performance EMI shielding materials. 2,5,6 However, advanced electronic applications such as robots, unmanned aerial vehicles (UAVs), automobiles (e.g.…”

“…require cutting-edge materials with self-adapting, self-sensing, and memory-based smart shielding capabilities. Nevertheless, such capabilities in materials are controlled by external stimuli such as temperature, 1 mechanical stress, 2 voltage, 3 moisture, 4 etc.…”

Oxidation-Resistant MXene-Based Melamine Foam with Ultralow-Percolation Thresholds for Electromagnetic-Infrared Compatible Shielding

“…This design strategy was shown to be suitable for the dual-function applications of IR stealth and EM shielding. Shen and co-workers prepared isocyanate-based aromatic polyimide foams derived from porous carbon skeletons by high-temperature pyrolysis under the catalytic influence of Fe, commercial cotton pads to fabricate aligned carbon networks by pyrolysis, and microcellular honeycomb-like graphene composites with anisotropic structure, etc. , Based on the above considerations, the construction of the 3D MXene porous aerogel structural composite is an efficient approach to achieve the dual functions of EMI shielding and thermal stealth. Bidirectional freeze-casting, used to fabricate lightweight porous MXene aerogel, which leads to outstanding EMI SE, was performed by Han et al , However, MXene nanosheets are connected by van der Waals forces in the MXene aerogel structure, so the MXene aerogel is limited in practical applications by a weak mechanical property.…”