共 26 条
Role of cashew shell biochar on EMI shielding behaviour of carbon fibre-epoxy nanocomposites in E, F, I and J band-microwave frequencies
被引:19
作者:
Babu, M.
[1
]
Bapu, B. R. Tapas
[2
]
Muruganantham, P.
[3
]
Anita, R.
[4
]
Nagaraju, V
[5
]
Kumar, P. J. Sathish
[6
]
机构:
[1] Easwari Engn Coll, Dept Mech Engn, Chennai, Tamil Nadu, India
[2] SA Engn Coll, Dept Elect & Commun Engn, Chennai, Tamil Nadu, India
[3] Indian Inst Informat Technol, Kalyani, W Bengal, India
[4] East Point Coll Engn & Technol, Dept Elect & Commun Engn, Bangalore, Karnataka, India
[5] SIMATS, Dept Comp Sci & Engn, Saveetha Sch Engn, Chennai, Tamil Nadu, India
[6] Panimalar Engn Coll, Dept Comp Sci & Engn, Chennai, Tamil Nadu, India
关键词:
PMC;
Biochar;
Carbon fibre;
Mechanical properties;
Scattering parameters;
COMPOSITES;
D O I:
10.1007/s13399-022-02617-8
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
This research discusses about the effect of adding high content cashew shell biochar (CSB) nanoparticle onto the carbon fibre-reinforced epoxy resin composite in electromagnetic interference (EMI) shielding behaviour. The primary goal of this research was to study the EMI shielding behaviour of CSB particle addition in carbon-epoxy composite at elevated frequency ranges up to 18 GHz. The shielding epoxy composites were prepared via hand layup method followed by characterized in accordance to ASTM standards. It is noted that the addition of CSB particle increased the mechanical properties of carbon-epoxy composite up to 226 and 298 MPa in tensile and flexural properties of composite designation CS4. The scattering parameters of tested composites showed highest reflection, multi-reflection and absorption behaviour for high CSB content in composite. It is further noted that the shielding effect increased with the volume of CSB particle. A highest shielding of - 48.6 dB was observed for composite designation CS5 at 18 GHz. These EMI shielding behaviours improved biochar-epoxy composites which could be used in radar, telecommunication, defence and signal processing devices where the effect of interference needs to be reduced.
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页码:375 / 382
页数:8
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