Review on engineering designing of electromagnetic interference shielding materials using additive manufacturing

Abstract

Recently 3D printing or additive manufacturing has been one of the most popular techniques for fabricating material. 3D printing or additive manufacturing has taken over the modern material fabrication industry in a revolutionary manner. The present review focuses on designing electromagnetic interference (EMI) shielding materials by 3D printing. The various raw materials such as polylactic acid (PLA), polypropylene, graphene, carbon nanotube (CNT), multiwalled carbon nanotube (MCNT), and so forth, can be successfully used for making effective EMI shielding performances in different frequency ranges.These raw materials have prepared diverse shapes, dimensions, and compositions to attenuate the incident radiations over the shielding material's surface and ultimately protect the electronic devices. When mixed with carbon nanotubes, PLA has been shown 8-15 dB, 30 dB, and 67 dB EMI SE in different frequency ranges, a material with ABS and CNT have À3 to À16 dB reflection loss in X-band frequency. Also graphene nanofilm/MWCNT composition has shown EMI SE as high as 43-54 dB in X-band ranges when printed with poly jet printing. These properties gave a cutting-edge rivalry to the conventional fabrication method and proved that 3D printing is better when designing innovation for EMI shielding materials3D printing, additive manufacturing, carbon nanotube, EMI shielding materials, fused filament fabrication, polylactic acid, polymer composites, polypropylene | INTRODUCTIONElectromagnetic (EM) radiations are generated by accelerated charged particles such as an electron. Both electric and magnetic fields propagate perpendicular to each other and are transverse. Electromagnetic radiation can travel in any medium such as vacuum, air, water, solids, and so forth. [1] Based on their energy and frequency, these radiations are classified into ionizing and nonionizing radiations. Ionizing radiations are very high frequency, high-energy radiations (X-rays, γ-rays, etc.), and nonionizing radiations are low frequency and low-energy

Preferential localization of conductive filler in ethylene‐co‐methyl acrylate/thermoplastic polyolefin polymer blends to reduce percolation threshold and enhanced electromagnetic radiation shielding over K band region

“…Although metal has been used as the essential shielding material for a long time through reflection mechanism, in upcoming trend, polymer composites have become the new material of interest in the shielding field for their lightweight, non-corrosive nature and very easy processability. [14][15][16][17] Basically, carbonaceous fillers, [18,19] such as carbon black, [20,21] carbon nanotubes, [22,23] graphene or reduced graphene oxide, [24][25][26] and carbon fiber [27,28] were extensively used as the conducting filler in the polymer base matrix to develop efficient EMI shielding material. [29][30][31] However, uniform dispersion of filler in the matrix eventually leading to higher cost of materials is the major drawback that needs to be overcome in developing EMI shielding materials.…”

Investigation on the enhancement of electromagnetic shielding with efficient use of short carbon fiber in MWCNT‐epoxy nanocomposites

“…The long-time exposure to this EM interference creates dis-functioning and damage to the neighboring equipment. [2][3][4][5] The X-band frequency ranges from 8 GHz to 12 GHz is widely used in radar applications for defense tracking, weather forecasting, and air traffic control. The EMI effect can be avoided by the use of proper shielding materials.…”

Investigation on electromagnetic shielding and mechanical properties of zirconia graded carbon fiber/epoxy nanocomposite

“…The accelerated advancements in the use of electrical and electronic equipment resulted in the generation of undesirable EMI to the neighboring electronic equipment and to the communication system, which needs to be mitigated by proper shielding. [1][2][3][4] The X-band (8-12 GHz) is widely used in radar for weather forecasting, defense tracking, and air traffic control. The Ku-band (12)(13)(14)(15)(16)(17)(18) is used for satellite communication.…”