Graphene-based microwave absorbing composites: A review and prospective

Comparative study of polymer-based nanocomposites microwave absorption performance in X–band

“…It is reported in the literature that CB based structures have [24,25] exhibited maximum shielding effectiveness value of −15 dB with 8 wt% filler concentration [13,23] and EMISE value of −19 dB for MWCNTs with 20 wt% [1,13,16,20,23]. It is perceived from previous studies that graphene has improved EM absorption performance than MWCNTs [4,20,23].…”

“…Conducting carbon based materials like carbon black (CB) [1,13,23], carbon nanotube (CNT) [1, 5-8, 13, 16, 20, 23], carbon nano fiber (CNF) [1,8,23] and graphene [1-4, 9, 11-15, 17-23] were exhibited EM shielding due to their remarkable electromagnetic properties. Among all, graphene posses electrical conductivity value of 6000 SCm −1 , high aspect ratio and good microwave attenuation.…”

“…This problem can be overcome by adding epoxy resin to pure graphene which will be leading to create a strong wander waal interactions in between graphene sheets [1,9,14,15,23]. It is reported in the literature that CB based structures have [24,25] exhibited maximum shielding effectiveness value of −15 dB with 8 wt% filler concentration [13,23] and EMISE value of −19 dB for MWCNTs with 20 wt% [1,13,16,20,23]. It is perceived from previous studies that graphene has improved EM absorption performance than MWCNTs [4,20,23].…”

Electric and thermal performance of poly(phenylene oxide)‐based composites with synergetic modification of carbon nanotubes and nanoplatelets

“…Electronic products with multifunction and miniaturization call for the working improvement of dielectric polymer in electric, thermal, mechanical and magnetic performance . Blending with organic/inorganic materials as an effective modification method plays a significant role in the performance enhancement of dielectric polymer.…”

Sensing up to 40 atm Using Pressure‐Sensitive Aero‐GaN

“…This tremendous development of aeromaterials is related to an impressive number of applications in energy storage and conversion (e.g., supercapacitors and solar cells), environmental protection (e.g., large absorption of crude oil, sensors), biological applications (e.g., drug delivery, tissue engineering, implantable devices, and biosensing) . An interesting application is electromagnetic shielding where ultra‐lightweight aeromaterials could replace the heavy metals used for this purpose in many industries, such as automotive and aerospace ones . For many applications, pressure sensors should be robust under strongest accelerations and vibrations, additionally, for aerospace applications they need to withstand radiation, aggressive chemicals, and vacuum.…”