Analysis of Microwave Absorbing Properties of Epoxy MWCNT Composites

Savi, Patrizia; Miscuglio, Mario; Giorcelli, Mauro; Tagliaferro, A.

doi:10.2528/pierl13102803

Cited by 60 publications

(48 citation statements)

References 16 publications

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“…Arjmand et al [65] checked the EMI shielding properties of different orientations of CNT in the polycarbonate matrix. Effect of fluorination on the EMI shielding properties of MWCNT has also been studied [66][67][68][69].…”

Section: Carbon Nanotubesmentioning

confidence: 99%

Carbon nanostructure composite for electromagnetic interference shielding

Joshi

Datar

2015

Pramana - J Phys

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This communication reviews current developments in carbon nanostructure-based composite materials for electromagnetic interference (EMI) shielding. With more and more electronic gadgets being used at different frequencies, there is a need for shielding them from one another to avoid interference. Conventionally, metal-based shielding materials have been used. But due to the requirement of light weight, corrosion resistive materials, lot of work is being done on composite materials. In this research the forerunner is the nanocarbon-based composite material whose different forms add different characteristics to the composite. The article focusses on composites based on graphene, graphene oxide, carbon nanotubes, and several other novel forms of carbon.

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Section: Carbon Nanotubesmentioning

confidence: 99%

Carbon nanostructure composite for electromagnetic interference shielding

Joshi

Datar

2015

Pramana - J Phys

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“…Many microwave studies have been reported with CNTs polymer composites with high (i.e., greater than 2.0 wt%) [1][2][3][4][5][6][7][8][9][10][11]22,24 and low loadings of MWCNTs in the matrix [12][13][14][15][16][17]19,31 . Although these composites are found to show good microwave absorbing performances with reflection loss (RL) of more than 90%, the absorbing frequency band is very narrow in most of the cases (ß2-3 GHz).…”

Section: Mwcnts Polymer Nanocomposites As Rammentioning

confidence: 99%

Microwave Radar Absorbing Properties of Multiwalled Carbon Nanotubes Polymer Composites: A Review

Munir¹

2015

Adv Polym Technol

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ABSTRACT:Multiwall carbon nanotubes (MWCNTs) reinforced composites for electromagnetic (EM) absorption are reviewed.Here, four types of nanostructured radar absorbing materials (RAMs) were discussed including MWCNTs polymer composites, magnetic nanostructures decorated MWCNTs polymer composites, nonmagnetic nanostructures decorated MWCNTs polymer composites, and honeycomb-coated MWCNTs as RAMs. Challenges hindering the practical applications of such composites have been discussed. It has also been highlighted that MWCNTs decorated with magnetic and dielectric nanostructures are effective for broadband lightweight absorbing materials. C

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“…For example, Tang's group [5] found that the addition of multiwalled carbon nanotube (MWCNT) in carbon black (CB)/epoxy resin composites enhanced the electrical conductivity of composites, and the percolation threshold appeared when the ternary composite had 0.2 wt.% MWCNT and 0.2 wt.% CB. Zhang's group [6] 10 found that the addition of expanded graphite (EG) and MWCN Ts in the cyanate ester (CE) composites showed very high dielectric constant, low dielectric loss and low percolation threshold compared to EG/CE and MWCNTs/ Electronic supplementary material The online version of this article (doi:10.1007/s10965-015-0738-y) contains supplementary material, which is available to authorized users. CE binary composites.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, CNTs or GNSs-filled polymer composites have been explored for potential applications in electromagnetic shielding or absorbing materials [7,8]. Secondly, epoxy is reported to be successfully prepared and EMI shielding and microwave absorbing applications had been investigated by the incorporation of foliated graphite nanosheets [9], GNSs [7] and CNTs [8,10]. CE resin is superior to conventional epoxy as the next-generation thermosetting polymer matrix because of its useful mechanical, outstanding thermal properties and superior dielectric behavior [11,12].…”

Section: Introductionmentioning

confidence: 99%

Cyanate ester filled with graphene nanosheets and multi-walled carbon nanotubes as a microwave absorber

et al. 2015

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Microwave absorbing composites with cyanate ester (CE) as matrix and both graphene nanosheets (GNSs) and multi-walled carbon nanotubes (MWCNTs) as absorbers were prepared, and their microwave absorbing properties were investigated in the frequency range of 2-18 GHz. The microstructures of the composites show a uniform dispersion of the GNSs and MWCNTs in the matrix. The complex permittivity of the composites increase with increasing fillers content. As microwave absorbing materials, the GNSs/MWCNTs/CE composites possess excellent absorption properties. Reflection loss values exceeding-5 dB (more than 70 % absorption) can be obtained in the frequency range of 9.12-14.15GHz with the count of 1.5 wt.% GNSs and 0.5 wt.% MWCNTs. Especially, a minimum reflection loss value of -32.4 dB was obtained at 11.2 GHz for the composite thickness of 2 mm. The enhanced microwave absorbing properties were also explained based on the structures of the composites. The mechanical properties of the composites were investigated in detail. It is observed that GNSs/MWCNTs reinforced CE composites demonstrated improved mechanical properties than that of CE matrix, which make them suitable for use in aerospace applications and radar absorbing material (RAM).

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Analysis of Microwave Absorbing Properties of Epoxy MWCNT Composites

Cited by 60 publications

References 16 publications

Carbon nanostructure composite for electromagnetic interference shielding

Carbon nanostructure composite for electromagnetic interference shielding

Microwave Radar Absorbing Properties of Multiwalled Carbon Nanotubes Polymer Composites: A Review

Cyanate ester filled with graphene nanosheets and multi-walled carbon nanotubes as a microwave absorber

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