Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (6): 1994.doi: 10.7503/cjcu20200762

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Properties of Polyaryletherketones-based Electromagnetic Wave Absorption Composite Material

FANG Jiyong1,2, JIANG Zhenhua2, YUE Xigui2()   

  1. 1.School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China
    2.Key Laboratory for High Performance Polymer of the Ministry Education of China,College of Chemistry,Jilin University,Changchun 130012
  • Received:2020-10-21 Online:2021-06-10 Published:2021-06-08
  • Contact: YUE Xigui E-mail:yuexigui@jlu.edu.cn

Abstract:

Magnetic porous carbon composite absorber(WPC/MNPs-80) developed in our previous work was specially selected to synthesize polyaryletherketones(PAEK) based electromagnetic wave absorption material(6F-PAEK-Crosslink@WPC/MNPs-80) through a solution blend method. In order to improve the solubility of the polymer matrix and solve the deposition problem of the absorber particles during the membrane-forming process, PAEK with hexafluoroisopropyl and amino groups(6F-PAEK-NH2) was designed and synthesized. According to the results, the crosslinked structure of the matrix can not only solve the deposition problem but also bring the composite material with excellent properties, such as thermal property and mechanical property. 6F-PAEK-Crosslink@WPC/MNPs-80 shows fine electromagnetic(EM) absorbency. The minimum RL value of -33 dB is obtained with the bandwidth of 4.8 GHz at a membrane thickness of 1.4 mm, while a minimum Reflection loss(RL) value of -44.5 dB is obtained with the bandwidth of 3.1 GHz at a membrane thickness of 1.8 mm. Therefore, 6F-PAEK-Crosslink@WPC/MNPs-80 is a promising candidate for electromagnetic wave attenuation because of its excellent comprehensive properties.

Key words: Polyaryletherketone, Electromagnetic wave absorption material, Porous carbon, Crosslinked structure

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