高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (6): 1994.doi: 10.7503/cjcu20200762

• 高分子化学 • 上一篇    下一篇

聚芳醚酮基复合吸波材料的制备及性能

方基永1,2, 姜振华2, 岳喜贵2()   

  1. 1.广东工业大学材料与能源学院, 广州 510006
    2.吉林大学化学学院, 特种工程塑料教育部重点实验室, 长春 130012
  • 收稿日期:2020-10-21 出版日期:2021-06-10 发布日期:2021-06-08
  • 通讯作者: 岳喜贵 E-mail:yuexigui@jlu.edu.cn

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

摘要:

以磁性多孔碳(WPC/MNPs-80)作为吸波剂材料, 通过溶液共混方式将其与聚芳醚酮复合, 制备了聚芳醚酮基复合吸波材料(6F-PAEK-Crosslink@WPC/MNPs-80). 为了通过溶液共混的方式制备复合材料并避免成膜过程中吸波剂的沉降问题, 设计合成了含有氨基与六氟异丙基的可溶性可交联型聚芳醚酮(6F-PAEK-NH2). 结果表明, 在交联剂作用下形成的交联结构不仅避免了吸波剂粒子沉降, 而且还赋予了材料优异的耐热性能和力学性能. 此外, 6F-PAEK-Crosslink@WPC/MNPs-80还具有优异的吸波性能, 当复合膜厚度为1.4 mm时, 最大反射损耗达到了-33 dB, 损耗超过-10 dB的频带宽度达到4.8 GHz; 当复合膜厚度为1.8 mm时, 最大反射损耗为-44.5 dB, 损耗超过-10 dB的频带宽度达到3.1 GHz.因此, 6F-PAEK-Crosslink@WPC/MNPs-80是一种综合性能优异的电磁波吸收材料.

关键词: 聚芳醚酮, 吸波材料, 多孔碳, 交联结构

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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