Electromagnetic and microwave absorption performance of Ni0.4Zn0.4Co0.2Fe2O4/polymethacrylimide foam synthesized via polymerization

Affiliation of Author(s):材料科学与技术学院

Journal:JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS

Key Words:ABSORBING PROPERTIES GRAPHENE COMPOSITES FERRITE MICROSPHERES FABRICATION DESIGN

Abstract:In this paper, the effect of nickel-zinc-cobalt ferrite (NZCFO) content on the electromagnetic properties of polymethacrylimide (PMI)/NZCFO was studied. The functional nano-composite was successfully synthesized via novel suspension polymerization. Subsequently, the presence of functional groups and microstructure was investigated by Fourier transform-infrared spectroscopy and scanning electron microscopy, respectively. Based on electromagnetic analysis, it is found that the compressive strength and the entire X-band of the composite foam (thickness greater than 27 mm) reach to 2.6 MPa and an effective bandwidth (R-L < - 10 dB) when the NZCFO content is 30 wt% of the reactive monomer. The analysis confirmed that the PMI/NZCFO (PMI/FO) foam composites enable the loss of an electromagnetic wave through the natural resonance effect of NZCFO. At the same time, the interwoven network structure and the cascade structure have a certain promotion effect on the loss of electromagnetic wave due to porous morphology of PMI foam. The synergetic effect of NZCFO and PMI shows the composite material owes significantly improved electromagnetic and microwave absorption performance.

ISSN No.:0957-4522

Translation or Not:no

Date of Publication:2019-09-01

Co-author:Chen, Wenjing,Lin, Haiyan,Zhou Jintang,Haidry, Azhar Ali,XT20375,Guo, Xinlu,Qian, Kun

Correspondence Author:Yao Zhengjun

Date of Publication:2019-09-01