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CCB@Fe3O4/NR吸波胶片的制备与微波吸收性能

申永前 张帆 朱健 龙建 高峰 杜雪岩

申永前, 张帆, 朱健, 等. CCB@Fe3O4/NR吸波胶片的制备与微波吸收性能[J]. 复合材料学报, 2023, 40(9): 5145-5157. doi: 10.13801/j.cnki.fhclxb.20230109.002
引用本文: 申永前, 张帆, 朱健, 等. CCB@Fe3O4/NR吸波胶片的制备与微波吸收性能[J]. 复合材料学报, 2023, 40(9): 5145-5157. doi: 10.13801/j.cnki.fhclxb.20230109.002
SHEN Yongqian, ZHANG Fan, ZHU Jian, et al. Fabrication and microwave absorbing properties of CCB@Fe3O4/ NR absorbing films[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 5145-5157. doi: 10.13801/j.cnki.fhclxb.20230109.002
Citation: SHEN Yongqian, ZHANG Fan, ZHU Jian, et al. Fabrication and microwave absorbing properties of CCB@Fe3O4/ NR absorbing films[J]. Acta Materiae Compositae Sinica, 2023, 40(9): 5145-5157. doi: 10.13801/j.cnki.fhclxb.20230109.002

CCB@Fe3O4/NR吸波胶片的制备与微波吸收性能

doi: 10.13801/j.cnki.fhclxb.20230109.002
基金项目: 中国博士后科学基金(2022 MD713777);甘肃省自然科学基金(21 JR7 RA223);国家自然科学基金-联合基金项目(U22 A20175)
详细信息
    通讯作者:

    申永前,博士,高级工程师,硕士生导师,研究方向为电磁波吸收材料  E-mail:syqch@163.com

  • 中图分类号: TB333

Fabrication and microwave absorbing properties of CCB@Fe3O4/ NR absorbing films

Funds: China Postdoctoral Science Foundation (2022 MD713777); Natural Science Foundation of Gansu Province (21 JR7 RA223); National Natural Science Foundation of China-Joint Fund Project (U22 A20175)
More Information
    Corresponding author: SHEN Yongqian, ZHANG Fan, ZHU Jian, et al. Fabrication and microwave absorbing properties of
  • 摘要: 探索具有优异性能的电磁波吸收材料是解决电磁污染的主要手段。然而,如何同时满足材料的高性能和实际应用要求仍然是一个挑战。本文采用溶胶凝胶法、塑炼、混炼及硫化等工艺制备了具有优异力学性能和吸波性能的导电炭黑(CCB)@纳米Fe3O4/天然橡胶(NR)吸波胶片,并通过调节CCB@Fe3O4的添加量来调控胶片的力学和吸波性能。CCB@Fe3O4复合材料的引入极大地改善了胶片的界面损耗和极化损耗,其中CCB可以在提高材料的介电常数和电导率的同时增强力学性能。当CCB@Fe3O4添加量为29wt%时,胶片达到−40.5 dB的最小反射损耗(RL),有效吸收带宽(EAB)为2.4 GHz,厚度为5.0 mm,并展现出最佳的抗拉强度、硬度和磨耗性能。材料优异的吸波性能来源于电-磁损耗协同效应引起的阻抗匹配、强电磁波衰减和高传导损耗。本工作为天然橡胶基吸波胶片的结构设计和实际应用提供了新的思路。

     

  • 图  1  24wt%CCB@Fe3O4/NR ((a), (d))、29wt%CCB@Fe3O4/NR ( (b), (e)) 和33wt%CCB@Fe3O4/NR ((c), (f)) 样品的EPMA图像

    Figure  1.  EPMA images of 24wt%CCB@Fe3O4/NR ((a), (d)), 29wt%CCB@Fe3O4/NR ((b), (e)) and 33wt%CCB@Fe3O4/NR ((c), (f))

    图  2  CCB@Fe3O4复合材料的TEM图像 ((a), (b)) 和HRTEM图像 (c); CCB和CCB@Fe3O4复合材料的XRD图谱 (d); Fe3O4,CCB、NR和CCB@Fe3O4/NR吸波胶片的FTIR图谱 (e); CCB@Fe3O4复合材料的磁滞曲线 (f)

    Figure  2.  TEM ((a), (b)) and HRTEM (c) images of CCB@Fe3O4 composites; XRD patterns (d) of CCB and CCB@Fe3O4 composites; FTIR sprctra (e) of Fe3O4, CCB, NR and CCB@Fe3O4/NR absorbing films; Hysteresis curves (f) of CCB@Fe3O4 composites

    图  3  CCB@Fe3O4/NR吸波胶片的应力-应变曲线

    Figure  3.  Stress-strain curve of CCB@Fe3O4/NR absorbing films

    图  4  CCB@Fe3O4/NR吸波胶片的复介电常数的实部ε' (a) 和虚部ε" (b)、复磁导率的实部μ' (e) 和虚部μ" (f)、介电损耗角正切tanδε (c) 和磁损耗角正切tanδμ (g)、Cole-Cole半圆 (d) 和μ″(μ′)−2f −1曲线 (h)

    Figure  4.  Frequency dependences of the real part ε' (a) and imaginery part ε'' (b) of the complex permittivity, real part μ' (e) and imaginary part μ''(f) part of the complex permeability, dielectric loss tangent (c) and magnetic loss tangent (g), Cole-Cole semicircles (ε′ versus ε″) (d) and frequency dependences of μ″(μ′)−2f −1 (h) for CCB@Fe3O4/NR absorbing films

    图  5  24wt%CCB@Fe3O4/NR (a)、29wt%CCB@Fe3O4/NR (b) 和33wt%CCB@Fe3O4/NR (c) 的传导损耗(εc″)和极化损耗(εp″)的频率相关性曲线

    Figure  5.  Frequency dependency of conduction loss (εc″) and polarization loss (εp″) for 24wt%CCB@Fe3O4/NR (a), 29wt%CCB@Fe3O4/NR (b) and 33wt%CCB@Fe3O4/NR (c)

    图  6  24wt%CCB@Fe3O4/NR ((a), (d), (g))、29wt%CCB@Fe3O4/NR ((b), (e), (h)) 和33wt%CCB@Fe3O4/NR ((c), (f), (i)) 的Cole-Cole曲线

    Figure  6.  Cole-Cole plots for 24wt%CCB@Fe3O4/NR ((a), (d), (g)), 29wt%CCB@Fe3O4/NR ((b), (e), (h)) and 33wt%CCB@Fe3O4/NR ((c), (f), (i))

    图  7  24wt%CCB@Fe3O4/NR ((a), (d))、29wt%CCB@Fe3O4/NR ((b), (e)) 和33wt%CCB@Fe3O4/NR ((c), (f)) 的3D和2D反射损耗图;24wt%CCB@Fe3O4/NR (g)、29wt%CCB@Fe3O4/NR (h) 和33wt%CCB@Fe3O4/NR (i) 的2D阻抗匹配图

    Figure  7.  3D and 2D maps of RL in 2.0-18.0 GHz with a diverse matching thickness (1.0-5.0 mm) for 24wt%CCB@Fe3O4/NR ((a), (d)), 29wt%CCB@Fe3O4/NR ((b), (e)) and 33wt% CCB@Fe3O4/NR ((c), (f)); 2D maps of Z values of 24wt%CCB@Fe3O4/NR (g), 29wt%CCB@Fe3O4/NR (h) and 33wt%CCB@Fe3O4/NR (i)

    图  8  24wt%CCB@Fe3O4/NR ((a), (d)),29wt%CCB@Fe3O4/NR ((b), (e)) 和33wt%CCB@Fe3O4/NR ((c), (f)) 的干涉相消图

    Figure  8.  Destructive interference diagram for 24wt%CCB@Fe3O4/NR ((a), (d)), 29wt%CCB@Fe3O4/NR ((b), (e)) and 33wt%CCB@Fe3O4/NR ((c), (f))

    图  9  CCB@Fe3O4/NR吸波胶片的衰减因子(α)曲线

    Figure  9.  Frequency dependences of the attenuation constant (α) for CCB@Fe3O4/NR absorbing films

    图  10  CCB@Fe3O4/NR吸波胶片的吸波机制图

    Figure  10.  Microwave absorbing mechanism of CCB@Fe3O4/NR absorbing films

    表  1  导电炭黑(CCB)@纳米Fe3O4/天然橡胶(NR)吸波胶片的填料配方

    Table  1.   Filler formula of conductive carbon black (CCB)@nano Fe3O4/natural rubber (NR) absorbing films

    SampleNR/gDMPPD/gC18H36O2/gCZ/gZnO/nano-ZnO/gCCB@Fe3O4/gS/g
    24wt%CCB@Fe3O4/NR1001215352
    29wt%CCB@Fe3O4/NR1001215452
    33wt%CCB@Fe3O4/NR1001215552
    下载: 导出CSV

    表  2  CCB@Fe3O4/NR吸波胶片的力学性能

    Table  2.   Mechanical properties of CCB@Fe3O4/NR absorbing films

    Sample100% modulus/MPa300% modulus/MPaTensile strength/MPaBreak elongation/%Shore hardness
    24wt%CCB@Fe3O4/NR1.793.62 8.92663.8863
    29wt%CCB@Fe3O4/NR2.636.7316.18635.2870
    33wt%CCB@Fe3O4/NR2.615.1810.10626.8878
    下载: 导出CSV

    表  3  CCB@Fe3O4/NR吸波胶片与类似工作的电磁波吸收性能对比

    Table  3.   Comparison of electromagnetic wave absorption performance of CCB@Fe3O4/NR absorbing films with similar work

    SampleThickness/mmRL/dBEAB/GHzReference
    CCB/NR/epoxidized NR3.0−23.583.04[23]
    CCB/NR5.5−15.643.20[45]
    CCB/Methacrylate grafted NR−22.381.68[46]
    Fe3O4/Thermoplastic NR9.0−25.512.70[47]
    CCB@Fe3O4/NR5.0−40.50.72This work
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-09-28
  • 修回日期:  2022-12-22
  • 录用日期:  2022-12-26
  • 网络出版日期:  2023-01-10
  • 刊出日期:  2023-09-15

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