Regulation binary electromagnetic filler networks in segregated poly(vinylidenefluoride) composite for absorption‐dominated electromagnetic interference shielding

Author:

Zhang Qimei12ORCID,Cui Jian1,Zhao Shuai1,Gao Ailin1,Zhang Guangfa1,Yan Yehai1

Affiliation:

1. Key Lab of Rubber‐Plastics Ministry of Education/Shandong Provincial Key Lab of Rubber‐Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology Qingdao China

2. School of Materials and Environmental Engineering Chizhou University Chizhou China

Abstract

AbstractExcellent conductivity and optimized impedance matching are vital for superior absorption‐dominated electromagnetic interference (EMI) shielding. An efficient binary electromagnetic filler network regulation method has been proposed. Poly‐ (vinylidenefluoride)‐ferroferric oxide‐reduced graphene oxide/single‐wall carbon nanotube (PVDF‐Fe3O4‐RGC) composite has been synthesized as a layered segregated polymer composite structure by using an electrostatic assembly and hot compression strategy. Binary electromagnetic filler networks have surpassed the obstacles of magnetic materials in conductive networks, and are thereby beneficial for outstanding conductivity and impedance matching. Therefore, a superior conductivity of 1.28 S cm−1 and an outstanding electromagnetic shielding interference and effectiveness of 44.5 dB have been obtained for loading of 2.02 vol.% single‐wall carbon nanotubes (SWCNTs), with an absorption rate larger than 85.0% in the X‐band. The enhanced EMI shielding performance is attributed to the regulation of the binary electromagnetic filler network.

Funder

China Postdoctoral Science Foundation

National Natural Science Foundation of China

Natural Science Foundation of Shandong Province

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,Surfaces, Coatings and Films,General Chemistry

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