High density interfaces enhanced microwave absorption in multifunctional carbon <scp>nanotubes‐glass fiber‐epoxy</scp> composites

Zhao, Rong; Xia, Jiaxin; Adamaquaye, Peter; Zhao, Guang–Lin

doi:10.1002/pat.5558

Cited by 6 publications

(3 citation statements)

References 61 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Eqs. 2-4 utilize these S parameters to determine the reflectance rate (R), absorption rate (A), and transmittance rate (T) (Zhao et al, 2022):…”

Section: Electromagnetic Shieldingmentioning

confidence: 99%

Multifunctional composite with hybrid carbon fiber and carbonaceous coconut particle reinforcement

Feni,

Jahan,

Zhao

et al. 2023

Front. Mater.

Self Cite

View full text Add to dashboard Cite

The utilization of multifunctional composite materials presents significant advantages in terms of system efficiency, cost-effectiveness, and miniaturization, making them highly valuable for a wide range of industrial applications. One approach to harness the multifunctionality of carbon fiber reinforced polymer (CFRP) is to integrate it with a secondary material to form a hybrid composite. In our previous research, we explored the use of carbonaceous material derived from coconut shells as a sustainable alternative to inorganic fillers, aiming to enhance the out-of-plane mechanical performance of CFRP. In this study, our focus is to investigate the influence of carbonized coconut shell particles on the non-structural properties of CFRP, specifically electromagnetic interference (EMI) shielding, thermal stability, and water absorption resistance. The carbonized material was prepared by thermal processing at 400 °C. Varying proportions of carbonized material, ranging from 1% to 5% by weight, were thoroughly mixed with epoxy resin to form the matrix used for impregnating woven carbon fabric with a volume fraction of 29%. Through measurements of scattering parameters, we found that the hybrid composites with particle loadings up to 3% exhibited EMI shielding effectiveness suitable for industrial applications. Also, incorporating low concentrations of carbonized particle to CFRP enhances the thermal stability of hybrid CFRP composites. However, the inclusion of carbonized particle to CFRP has a complex effect on the glass transition temperature. Even so, the hybrid composite with 2% particle loading exhibits the highest glass transition temperature and lowest damping factor among the tested variations. Furthermore, when subjected to a 7-day water immersion test, hybrid composites with 3% or less amount of carbonized particle showed the least water absorption. The favorable outcome can be attributed to good interfacial bonding at the matrix/fiber interface. Conversely, at higher particle concentrations, aggregation of particles and formation of interfacial and internal pores was observed, ultimately resulting in deteriorated measured properties. The improved non-structural functionalities observed in these biocomposites suggest the potential for a more sustainable and cost-effective alternative to their inorganic-based counterparts. This advancement in multifunctional composites could pave the way for enhanced applications of biocomposites in various industries.

show abstract

“…Eqs. 2-4 utilize these S parameters to determine the reflectance rate (R), absorption rate (A), and transmittance rate (T) (Zhao et al, 2022):…”

Section: Electromagnetic Shieldingmentioning

confidence: 99%

Multifunctional composite with hybrid carbon fiber and carbonaceous coconut particle reinforcement

Feni,

Jahan,

Zhao

et al. 2023

Front. Mater.

Self Cite

View full text Add to dashboard Cite

show abstract

“…9,10 Carbon nanotubes have exotic physicochemical properties, 11 such as unique metallic or semiconductor electrical conductivity, 12 high mechanical strength, 13 hydrogen storage capacity, 14 adsorption capacity 15 and strong microwave absorption. [16][17][18] The CNTs were first discovered in the early 1990s, and immediately attracted great attention from the physical, chemical and material science communities. 19 At present, the multi-walled carbon nanotubes (MWCNTs) have cost advantages, and are gradually taking over the market of traditional carbon black as reinforcing agents and conductive agents.…”

Section: Introductionmentioning

confidence: 99%

High-rate carbon nanotube/magnetic-sheet composites in situ synthesized using a fluidized bed for high-frequency microwave absorption

Xu,

Sun,

Liang

et al. 2024

New J. Chem.

View full text Add to dashboard Cite

show abstract

“…The results showed that the best reflection loss of −60 dB with a −10 dB range of 5.6 GHz could be obtained in an absorber with a triple-layered structure composed of GF-CNTs/epoxy with different CNT contents and GF-CNTs@Ni/epoxy. Zhao, R. et al [33] fabricated and systematically investigated the mechanical and microwave absorption properties of MWCNTs-GF-epoxy composites. The maximum reflection loss of the composites can reach −48 dB at 24.5 GHz.…”

Section: Introductionmentioning

confidence: 99%

Study on Properties of Glass-Fiber-Fabric-Reinforced Microwave-Absorbing Composites

Zhou,

Liu,

Chen

et al. 2024

Materials

View full text Add to dashboard Cite

In this paper, the glass-fiber-fabric-reinforced resin-based absorbing composites were prepared, and their microwave-absorbing properties were studied via simulation and experiment. The simulation results show that the absorption bandwidth of the absorbing material can cover the X\C\S band, respectively, at different thicknesses. The minimum reflection loss (RL) of the composite with a thickness of 2.2 mm is −27.4 dB at 5.95 GHz. However, the experiment results are quite different from those of the simulation. The metallographic results indicate that it is the change of the mass fraction of the absorbents in the composites after curing that causes the difference. According to the metallographic results, three shape approximation methods were proposed to calculate the real mass ratio of the absorbents in the composites, namely, parallelogram approximation, bows approximation, and elliptical approximation. Meanwhile, the structural parameter Kf was introduced to optimize the calculation results. The electromagnetic parameters of the material based on the calculation results were measured, and the results show that the simulation results obtained via bow approximation have a better coincidence to the experiment results, and the mass ratio of the absorbent raises by around 9.95%, which lays a foundation for the subsequent design of microwave-absorbing composites.

show abstract

High density interfaces enhanced microwave absorption in multifunctional carbon nanotubes‐glass fiber‐epoxy composites

Cited by 6 publications

References 61 publications

Multifunctional composite with hybrid carbon fiber and carbonaceous coconut particle reinforcement

Multifunctional composite with hybrid carbon fiber and carbonaceous coconut particle reinforcement

High-rate carbon nanotube/magnetic-sheet composites in situ synthesized using a fluidized bed for high-frequency microwave absorption

Study on Properties of Glass-Fiber-Fabric-Reinforced Microwave-Absorbing Composites

Contact Info

Product

Resources

About