Elastic composites fabricating for electromagnetic interference shielding based on MWCNTs and Fe₃O₄ unique distribution in immiscible NR/NBR blends

Abstract

Electromagnetic interference (EMI) shielding rubber nanocomposites were fabricated via a simple rubber roll milling technique based on the filler distribution behavior in the immiscible natural rubber (NR) and acrylonitrile-butadiene (NBR) (50/50) blends with varying amounts of multiwall carbon nanotubes and Fe 3 O 4 nanoparticles. All nanocomposites showed a co-continuous phase structure, while the distribution behavior of filler was diverse correlated with the filler content and type. The mechanical properties, electrical conductivity, and EMI shielding effectiveness (SE) of rubber composites were characterized. The maximum EMI SE of 29.4 dB at 12.4 GHz was achieved in the rubber composites loaded with 15 phr MWCNTs and 15 phr Fe 3 O 4 nanoparticles. The EMI shielding mechanisms of such materials were also discussed. The observation in this work provided a possible idea to the industrial manufacture electromagnetic interference shielding rubber nanocomposites, and contributed to expanding its application fields with higher mechanical property requirements and flexibility.

Recent advances in structural design of conductive polymer composites for electromagnetic interference shielding

“…EMI shielding materials mainly include metal, inorganic, polymer composites, and so forth 67,68 . It should be pointed out that the CPCs filled with hybrid carbon‐based/metallic/magnetic fillers have become the most promising materials for EMI shielding 69–72 …”

“…67,68 It should be pointed out that the CPCs filled with hybrid carbonbased/metallic/magnetic fillers have become the most promising materials for EMI shielding. [69][70][71][72]…”

Epiphyte-Inspired Multifunctional Biocomposites for Electromagnetic Interference Shielding

“…8f), which represents an outstanding alternative for polymer-based composites (Fig. 8e) [2,6,[52][53][54][55][56][57][58][59].…”

Large-area (50 cm × 50 cm) optically transparent electromagnetic interference (EMI) shielding of ZTO/Ag/ZTO: an analytical/numerical and experimental study of optoelectrical and EMI shielding properties

“…The ability to shield electromagnetic interference (EMI) is of critical importance in electronics [1], aviation and aerospace [2][3][4][5][6][7][8], automotive [9][10][11][12], medical and healthcare [13][14][15], and telecommunications [16][17][18]. For example, EMI can cause signal degradation, noise, data corruption, and even system failure, jeopardizing the safety and efficiency of aircraft operations [19]. Therefore, it is essential to shield the effects of EMI and protect electronic components from malfunctioning or failure.…”