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author:

Xie, Z. (Xie, Z..) [1] | Zhao, H. (Zhao, H..) [2] | Chen, F. (Chen, F..) [3] | Zhang, C. (Zhang, C..) [4] | Xiao, L. (Xiao, L..) [5] | Cai, J. (Cai, J..) [6] | Hou, L. (Hou, L..) [7]

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Scopus

Abstract:

Microwave absorption and thermal conductivity compatibility are difficult to achieve because of the inevitable significant electromagnetic interference, heat buildup, and impedance mismatch and decreased heat transfer efficiency caused by the lightweighting and integration of electronic equipment. In this research, a polyacrylamide (PAM)-based bifunctional organogel with both microwave absorption and thermal conductivity was created by employing Co-MOF-74 derivatives as basic fillers and increasing interfacial polarization and conduction loss with the addition of MWCNT. The inclusion of MWCNT improved the conductive loss, and the loading of MWCNT with MOF derivatives extended the heterogeneous interface, resulting in the homogeneous distribution of magnetic nanoparticles and the formation of a magnetic coupling network, which increases magnetic loss capacity. The Co/C-MWCNT@PDA/PAM gel has a packing of 10 wt% in the frequency range of 2–18 GHz and an RLmin of −59.3 dB at a matched thickness of 2 mm. In addition, the magnetic orientation on MOF derivatives aligned the fillers in the polymer matrix to produce high-efficiency thermal conductive pathways. The potential of MOF derivatives and polymers as bifunctional gels for thermal conductivity and electromagnetic wave absorption is highlighted in this work. © 2025 Elsevier B.V.

Keyword:

Electromagnetic wave absorption Metal-organic framework derivative Multi-walled carbon nanotube Polyacrylamide Thermal management

Community:

  • [ 1 ] [Xie Z.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 2 ] [Zhao H.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 3 ] [Chen F.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 4 ] [Zhang C.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 5 ] [Xiao L.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 6 ] [Xiao L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 7 ] [Cai J.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 8 ] [Cai J.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 9 ] [Hou L.]Department of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 10 ] [Hou L.]Qingyuan Innovation Laboratory, Quanzhou, 362801, China
  • [ 11 ] [Hou L.]Fujian Key Laboratory of Advanced Manufacturing Technology of Specialty Chemicals, Fuzhou University, Fuzhou, 350116, China

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Source :

Diamond and Related Materials

ISSN: 0925-9635

Year: 2025

Volume: 157

4 . 3 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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