Research Progress with Membrane Shielding Materials for Electromagnetic/Radiation Contamination

Abstract

As technology develops at a rapid pace, electromagnetic and radiation pollution have become significant issues. These forms of pollution can cause many important environmental issues. If they are not properly managed and addressed, they will be everywhere in the global biosphere, and they will have devastating impacts on human health. In addition to minimizing sources of electromagnetic radiation, the development of lightweight composite shielding materials to address interference from radiation has become an important area of research. A suitable shielding material can effectively reduce the harm caused by electromagnetic interference/radiation. However, membrane shielding materials with general functions cannot effectively exert their shielding performance in all fields, and membrane shielding materials used in different fields must have specific functions under their use conditions. The aim of this review was to provide a comprehensive review of these issues. Firstly, the causes of electromagnetic/radiation pollution were briefly introduced and comprehensively identified and analyzed. Secondly, the strategic solutions offered by membrane shielding materials to address electromagnetic/radiation problems were discussed. Then, the design concept, technical innovation, and related mechanisms of the existing membrane shielding materials were expounded, the treatment methods adopted by scholars to study the environment and performance change laws were introduced, and the main difficulties encountered in this area of research were summarized. Finally, on the basis of a comprehensive analysis of the protection provided by membrane shielding materials against electromagnetic/radiation pollution, the action mechanism of membrane shielding materials was expounded in detail, and the research progress, structural design and performance characterization techniques for these materials were summarized. In addition, the future challenges were prospected. This review will help universities, research institutes, as well as scientific and technological enterprises engaged in related fields to fully understand the design concept and research progress of electromagnetic/radiation-contaminated membrane shielding materials. In addition, it is hoped that this review will facilitate efforts to accelerate the research and development of membrane shielding materials and offer potential applications in areas such as electronics, nuclear medicine, agriculture, and other areas of industry.

Review on recent progress in epoxy‐based composite materials for Electromagnetic Interference(EMI) shielding applications

“…In addition to primary reflection, multiple internal reflections also reduce the transmission of incident EM waves. 17 The schematic representation of EMI shielding by reflection is represented in Figure 1.…”

“…The direct reflection of incident radiation can be increased by increasing the conductivity of the shielding material or by reducing the impedance mismatch thereby reducing the transmission of EM waves. In addition to primary reflection, multiple internal reflections also reduce the transmission of incident EM waves 17 . The schematic representation of EMI shielding by reflection is represented in Figure 1.…”

A Facile Route Preparation of Fe3O4/MWCNT/ZnO/PANI Nanocomposite and its Characterization for Enhanced Microwave Absorption Properties

“…To address this issue, researchers have explored various shielding mechanisms, including developing materials that can absorb microwaves. [1][2][3] These materials include graphene-based composites, [4][5][6] ferrite-based composites, [7][8][9] and conductive polymer-based composites. [10,11] The objective of this development is to reduce the reflection loss (RL) and enhance the electromagnetic bandwidth (EB) absorption of a material.…”

“…However, there is a disadvantage to this advanced equipment: electromagnetic waves are widely distributed in the microwave spectrum i. e., microwaves, which could harm human health. To address this issue, researchers have explored various shielding mechanisms, including developing materials that can absorb microwaves [1–3] . These materials include graphene‐based composites, [4–6] ferrite‐based composites, [7–9] and conductive polymer‐based composites [10,11] .…”

Graphene Nanocomposites for Electromagnetic Interference Shielding—Trends and Advancements

“…Adding very small amounts of graphene to polymers may cause significant improvements in their physical characteristics [5]. Graphene and derived nanomaterials have been applied in the fields of electromagnetic interference (EMI) shielding equipment, electronics and microelectronics, sensors and actuators, printing devices, energy devices, and other methodological and industrial applications [6]. Polymer/graphene nanocomposites have been found to be effective in overcoming the challenging aspects of electromagnetic wave interference [7].…”