Effect of carbon fiber reinforcement on the mechanical and electromagnetic shielding properties of the Fe3O4‐carbonaceous/epoxy composites

The present work aimed at the simultaneous improvement in the mechanical and electromagnetic shielding properties of Fe3O4‐carbonaceous/epoxy composites by the reinforcement of two plies of carbon fiber into the epoxy‐filler matrix. In this study, Fe3O4‐activated carbon and Fe3O4‐activated charcoal...

Full description

Saved in:
Bibliographic Details
Published in:Polymers for advanced technologies 2023-09, Vol.34 (9), p.2946-2960
Main Authors: Anu, K. S., Vishnumurthy, K. A., Mahesh, A., Natarajan, K.
Format: Article
Language:English
Subjects:
Activated carbon
Avionics
Carbon fiber reinforced plastics
Carbon fibers
Carbon-epoxy composites
Charcoal
Electromagnetic shielding
EMI shielding
epoxy composites
Fiber reinforced polymers
Fiber reinforcement
Fillers
Iron oxides
Layers
Mechanical properties
shielding effectiveness
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present work aimed at the simultaneous improvement in the mechanical and electromagnetic shielding properties of Fe3O4‐carbonaceous/epoxy composites by the reinforcement of two plies of carbon fiber into the epoxy‐filler matrix. In this study, Fe3O4‐activated carbon and Fe3O4‐activated charcoal composites were synthesized by co‐precipitation method and were introduced into the epoxy matrix with different weight percentage (5, 10, and 15 wt%). The BET surface area analysis revealed the high porosity in the Fe3O4‐activated charcoal composite than that of activated carbon composite. The Fe3O4‐activated carbon/epoxy composite showed better mechanical properties than the later. Both the composites showed nearly same EMI SE value. 10 wt% of the filler‐1/epoxy composite showed the highest shielding effectiveness (SE) value of −22.5 dB at 10 GHz whereas 15 wt% Fe3O4@charcoal/epoxy composite showed better SE value of −27.15 dB at 8.8 GHz. The obtained results were supported by the dielectric and magnetic loss tangent studies. The incorporation of carbon fiber enhanced the mechanical property by three times and the EMI SE value by ~15 dB. Thus, the carbon fiber reinforced Fe3O4/carbonaceous epoxy composites may be the potential electromagnetic shielding material for electronics and aircraft industries.
ISSN:1042-7147
1099-1581
DOI:10.1002/pat.6119