Magnetic–dielectric composites are an effective strategy for developing efficient microwave absorbers, owing to the synergistic effect of different attenuation mechanisms. In this work, barium ferrite (BaFe12O19) powder is first prepared using a microwave-assisted hydrothermal method, and then BaFe12O19/polypyrrole (PPy) composite powders with different contents of PPy were prepared using an in situ polymerization method. Polyvinylidene difluoride (PVDF) is selected as the film-forming agent, and BaFe12O19/PPy/PVDF film is prepared using a casting molding process; then polyvinyl alcohol is used as a binder to prepare BaFe12O19/PPy/PVDF film or fabric with a strong microwave absorption performance. The minimum reflection loss (RLmin) is as high as −36.52 dB at 16.31 GHz for a thickness of 2.5 mm. The adequate absorption bandwidth (RL ≤ −10 dB) is as wide as 7.98 GHz for the same thickness, covering almost all X and Ku bands. The absorption mechanism is revealed in detail through an in-depth analysis of the electromagnetic parameters. The synergistic effect of the solid magnetic loss of BaFe12O19 magnetic metal, the intense dielectric loss of PPy, and the superior impedance matching result in excellent microwave absorption capability. The results show that the BaFe12O19/PPy/PVDF film or fabric is a promising and efficient microwave-absorbing material, being thin and strongly absorbing across a wide bandwidth.
JinHWeiSZhangX, et al.
Multi-heterostructure composites of Fe3O4 coated Janus nanoparticles and MWCNTs with high microwave absorption. Polym Test2023;
123: 108056.
2.
ChenWZhengXHeX, et al.
Achieving full effective microwave absorption in X band by double-layered design of glass fiber epoxy composites containing MWCNTs and Fe3O4 NPs. Polym Test2020;
86: 106448.
3.
ZhuBGaoYHaoH, et al.
One-pot synthesis of coal gangue–derived NiCG composite for enhancing microwave absorption. Colloids Surf A2023;
666: 131305.
4.
ZhangHLiuHWuH, et al.
Microwave absorbing property of gelcasting SiC-Si3N4 ceramics with hierarchical pore structures. J Eur Ceram Soc2022;
42: 1249–1257.
5.
ZhangDYanCZhengY, et al.
Reduced graphene oxide wrapped 3D-ultrathin CoS2 nanoflakes as an absorbing material with enhanced microwave absorption. Prog Nat Sci: Mater Int2022;
32: 20–26.
6.
TangYYinPZhangL, et al.
Novel carbon encapsulated zinc ferrite/MWCNTs composite: Preparation and low-frequency microwave absorption investigation. Ceram Int2020;
46: 28250–28261.
7.
SulaimanJMAIsmailMMRafeeqSN, et al.
Enhancement of electromagnetic interference shielding based on Co0.5Zn0.5Fe2O4/PANI-PTSA nanocomposites. Appl Phys A2020;
126: 236.
8.
JiaKLiuWLiK, et al.
A novel synthesize approach and electromagnetic wave absorbing properties of expanded graphite/Fe3O4/carbon nanorod composite microstructure. J Mater Sci: Mater Electron2019;
30: 17011–17019.
9.
WuYZhongYGuanY, et al.
Polymer‐derived Co2Si@SiC/C/SiOC/SiO2/Co3O4 nanoparticles: Microstructural evolution and enhanced EM absorbing properties. J Am Ceram Soc2020;
103: 6764–6779.
10.
JiXNiuY, andXuY.Rational design of hierarchical SiO2@TiO2 composite with large internal void space for high-performance microwave absorption. Russ J Phys Chem A2019;
93: 1128–1132.
11.
ZhangNLiJMenX, et al.
Cleaning synthesis of core–shell structured Ni@PPy composite as excellent lightweight electromagnetic wave absorber. J Mater Sci: Mater Electron2020;
31: 1483–1490.
12.
SuXWangJZhangX, et al.
Synthesis of core–shell Fe3O4@ppy/graphite nanosheets composites with enhanced microwave absorption performance. Mater Lett2019;
239: 136–139.
13.
MathewsSABabuDRSaravananP, et al.
Microwave absorption studies of (Ba0.5Sr0.5Fe12O19)1−x/(NiFe2O4)x hard/soft ferrite nanocomposites. Mater Chem Phys2020;
252: 123063.
14.
XingWJWangHFanQB, et al.
Hexagonal Co/C/BaZn0.2Co0.8TiFe10O19 ternary hybrids: Synthetic method and microwave absorption properties. J Alloys Compd2018;
731: 515–523.
15.
WangMLinYLiuY, et al.
Core–shell structure BaFe12O19@PANI composites with thin matching thickness and effective microwave absorption properties. J Mater Sci: Mater Electron2019;
30: 14344–14354.
16.
ZhangJ.Interference effects on microwave absorbing properties of W-type BaZn2Fe16O27 prepared by solid method. J Mater Sci: Mater Electron2019;
30: 8437–8444.
17.
TyagiSPandeyVSBaskeyHB, et al.
RADAR absorption study of BaFe12O19/ZnFe2O4/CNTs nanocomposite. J Alloys Compd2018;
731: 584–590.
18.
LiuXZhaoXYanJ, et al.
Enhanced electromagnetic wave absorption performance of core-shell Fe3O4@poly(3,4-ethylenedioxythiophene) microspheres/reduced graphene oxide composite. Carbon2021;
178: 273–284.
19.
XieXWangBWangY, et al.
Spinel structured MFe2O4 (M = Fe, Co, Ni, Mn, Zn) and their composites for microwave absorption: A review. Chem Eng J2022;
428: 131160.
20.
WangLLiXShiX, et al.
Recent progress of microwave absorption microspheres by magnetic–dielectric synergy. Nanoscale2021;
13: 2136–2156.
21.
XueWYangGBiS, et al.
Construction of caterpillar-like hierarchically structured Co/MnO/CNTs derived from MnO2/ZIF-8@ZIF-67 for electromagnetic wave absorption. Carbon2021;
173: 521–527.
22.
ZhangBLinSZhangJ, et al.
Facile synthesis of sandwich-like rGO/CuS/polypyrrole nanoarchitectures for efficient electromagnetic absorption. Materials2020;
13: 446.
23.
SunKLiGLeiYH, et al.
Core–shell structural barium ferrite/polypyrrole nanocomposites with enhanced microwave absorption properties. J Nanoelectron Optoelectron2020;
15: 1312–1320.
24.
HeNYangXShiL, et al.
Chemical conversion of Cu2O/PPy core-shell nanowires (CSNWs): A surface/interface adjustment method for high-quality Cu/Fe/C and Cu/Fe3O4/C CSNWs with superior microwave absorption capabilities. Carbon2020;
166: 205–217.
25.
GaiLZhaoYSongG, et al.
Construction of core-shell PPy@MoS2 with nanotube-like heterostructures for electromagnetic wave absorption: Assembly and enhanced mechanism. Composites, Part A2020;
136: 105965.
26.
JanemNAziziZS, andTehranchiMM.Microwave absorption and magnetic properties of thin-film Fe3O4@polypyrrole nanocomposites: The synthesis method effect. Synth Met2021;
282: 116948.
27.
WuMYangEQiX, et al.
Constructing different categories of heterostructured magnetic nanoparticles@carbon nanotubes-reduced graphene oxide, and their tunable excellent microwave absorption capabilities. J Alloys Compd2019;
785: 1126–1136.
28.
LiWLuZLiuX, et al.
Modulation of complex permittivity of carbon nanotubes/epoxy foam composites reinforced by three-dimensional woven spacer fabric. Compos Struct2023;
321: 117275.
29.
SunLLiuRMaY, et al.
Flexible and hydrophobic CoFe-LDH@ Co MOF @biomass-derived carbon fabrics for effective near-infrared photothermal conversion and electromagnetic attenuation. J Alloys Compd2024;
1002: 175518.
30.
DongZPuYShiX, et al.
Dielectric properties of (1−x)BaTiO3−xBaFe12O19 composite ceramics. Ferroelectrics2015;
489: 1–10.
31.
GanFYaoQChengL, et al.
Fabrication of BaFe12O19/CeO2 composite for highly efficient microwave absorption. J Alloys Compd2022;
897: 162964.
32.
MaTCuiYShaY, et al.
Facile synthesis of hierarchically porous rGO/MnZn ferrite composites for enhanced microwave absorption performance. Synth Met2020,
265: 116407.
33.
JeongKPYangSWChoiJH, et al.
Microwave absorption characteristics of U-type ferrite powders according to substitution elements and its compositions. Met Mater Int2021;
27: 2782–2790.
34.
ShuRWuYLiZ, et al.
Facile synthesis of cobalt-zinc ferrite microspheres decorated nitrogen-doped multi-walled carbon nanotubes hybrid composites with excellent microwave absorption in the X-band. Compos Sci Technol2019;
184: 107839.
35.
SahaPDebnathTDasS, et al.
β-Phase improved Mn-Zn-Cu-ferrite-PVDF nanocomposite film: A metamaterial for enhanced microwave absorption. Mater Sci Eng, B2019;
245: 17–29.
36.
MengXHanQSunY, et al.
Synthesis and microwave absorption properties of Ni0.5Zn0.5Fe2O4/BaFe12O19@polyaniline composite. Ceram Int2019;
45: 2504–2508.
37.
LiuFLiCWaterhouseGIN, et al.
Lightweight PVDF/γ-Fe2O3/PANI foam for efficient broadband microwave absorption in the K and Ka bands. J Alloys Compd2021;
876: 159983.
38.
YangZWanYXiongG, et al.
Facile synthesis of ZnFe2O4/reduced graphene oxide nanohybrids for enhanced microwave absorption properties. Mater Res Bull2015;
61: 292–297.
39.
DongSChenY, andHongC.Synergetic impedance matching and loss ability towards efficient microwave absorption of Fe3O4 nanoparticles anchored on SiC whiskers via a simple solvothermal method. J Alloys Compd2020;
838: 155558.
40.
AdebayoLLSoleimaniHYahyaN, et al.
Recent advances in the development of Fe3O4-based microwave absorbing materials. Ceram Int2020;
46: 1249–1268.
41.
LiuT.Preparation and electromagnetic wave absorbing performance of MXene-based nanocomposites. M.A. Thesis, Xi’an Technological University, China, 2023.
42.
PangHSahuRPDuanY, et al.
MnFe2O4-coated carbon nanotubes with enhanced microwave absorption: Effect of CNT content and hydrothermal reaction time. Diamond Relat Mater2019;
96: 31–43.
43.
MustaffaMSAzisRSAbdullahNH, et al.
An investigation of microstructural, magnetic and microwave absorption properties of multi-walled carbon nanotubes/Ni0.5Zn0.5Fe2O4. Sci Rep2019;
9: 15523.
44.
LiFZhanWSuY, et al.
Achieving excellent electromagnetic wave absorption of ZnFe2O4@CNT/polyvinylidene fluoride flexible composite membranes by adjusting processing conditions. Composites, Part A2020;
133: 105866.
45.
JiaoZYaoZZhouJ, et al.
Enhanced microwave absorption properties of Nd-doped NiZn ferrite/polyaniline nanocomposites. Ceram Int2020;
46: 25405–25414.
46.
YangYLiuY, andZhaoX.Preparation and characterization of an electromagnetic composite polypyrrole/polyethylene short filament geotextile. Text Res J2022;
92: 1333–1343.
47.
XieXZhangBWangQ, et al.
Efficient microwave absorber and supercapacitors derived from puffed-rice-based biomass carbon: Effects of activating temperature. J Colloid Interface Sci2021;
594: 290–303.
48.
GoelSGargABaskeyHB, et al.
Studies on dielectric and magnetic properties of barium hexaferrite and bio-waste derived activated carbon composites for X-band microwave absorption. J Alloys Compd2021;
875: 160028.
49.
WangJChenGBaiX, et al.
Significantly enhancing electromagnetic wave absorption properties of BaFe12O19 hexaferrites via KOH mineralizer. J Alloys Compd2023;
947: 169539.
50.
YustantiENoviyantoAIkramullahM, et al.
High-performance microwave absorption by optimizing hydrothermal synthesis of BaFe12O19@MnO2 core–shell composites. RSC Adv2023;
13: 27634–27647.
51.
WangYYSunWJDaiK, et al.
Highly enhanced microwave absorption for carbon nanotube/barium ferrite composite with ultra-low carbon nanotube loading. J Mater Sci Technol2022;
102: 115–122.
52.
BahadurASaeedAIqbalS, et al.
Morphological and magnetic properties of BaFe12O19 nanoferrite: A promising microwave absorbing material. Ceram Int2017;
43: 7346–7350.
53.
ZhangZXiongZYaoY, et al.
Constructing conductive network in hybrid perovskite for a highly efficient microwave absorption system. Adv Funct Mater2022;
32: 2206053.
54.
WuZPeiKXingL, et al.
Enhanced microwave absorption performance from magnetic coupling of magnetic nanoparticles suspended within hierarchically tubular composite. Adv Funct Mater2019;
29: 1901448.
55.
LiXYouWZhangR, et al.
Synthesis of nonspherical hollow architecture with magnetic Fe core and Ni decorated tadpole-like shell as ultrabroad bandwidth microwave absorbers. Small2021;
17: 2103351.
56.
LiangHChenGLiuD, et al.
Exploring the Ni 3d orbital unpaired electrons induced polarization loss based on Ni single-atoms model absorber. Adv Funct Mater2023;
33: 2212604.
