Graphene and CNT filled hybrid thermoplastic composites for enhanced EMI shielding effectiveness

Joseph, Jomy; Munda, Prithvi Raj; John, Dina A.; Sidpara, Ajay; Paul, Jinu

doi:10.1088/2053-1591/ab1e23

Cited by 53 publications

(20 citation statements)

References 40 publications

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“…Electrical and thermal conductivity enhancement of carbon fibre reinforced polymer composites (CFRPs) could extend functional capabilities into areas such as lightning strike protection [1,2], electrostatic discharge [3,4] and electromagnetic shielding [5][6][7]. Significant thermal and electrical conductivity advancements have been achieved with the addition of nanomaterials into fibre reinforced polymer composites [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A graphene film interlayer for enhanced electrical conductivity in a carbon-fibre/PEEK composite

Leow

Kreider

Notthoff

et al. 2021

Functional Composite Mater

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Carbon-fibre reinforced composites are seeing increased deployment, especially in the aerospace industry, and the next-generation of these materials will need to meet demanding performance requirements beyond just specific strength. The incorporation of nanomaterials such as graphene into composites has great potential for enhancing electrical, thermal, and mechanical properties, which could then enable new capabilities such as built-in lightning strike protection and electromagnetic shielding. One major challenge is successful integration of nanomaterials into the composite during the manufacturing process especially for thermoplastic based composites. This work explores the spray deposition of exfoliated graphene in liquid suspensions for the nano-enhancement of electrical properties in carbon-fibre reinforced polyether ether keytone (PEEK) composites. Developed thin films were smooth with RMS roughness of 1.06 μm on Si substrates and RMS roughness of 1.27 μm on CF-PEEK tapes. The addition of 1.3 wt% graphene into the interlayers of CF-PEEK composites resulted in bulk electrical conductivity enhancement both in plane and through thickness of ~ 1100% and 67.5% respectively. This approach allows for pre-consolidation introduction of high-performance nanomaterials directly to thermoplastic prepregs which could open simple pathways for the in-situ manufacturing of carbon-fibre reinforced polymer nanocomposites.

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Section: Introductionmentioning

confidence: 99%

A graphene film interlayer for enhanced electrical conductivity in a carbon-fibre/PEEK composite

Leow

Kreider

Notthoff

et al. 2021

Functional Composite Mater

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show abstract

“…21 Joseph et al reported a conductivity of 10 −5 S m −1 and EMI SE of around 13 dB for the PMMA/ GNP composites containing 10 wt% of GNP and prepared by solution blending. 22,23 Zhang et al achieved EMI SE of around 3.5 dB with the addition of 2 wt% of GNP in PMMA by solution process. 24 Zakiyan et al also reported an EMI SE of around 3 dB with the presence of 3 wt% of GNP in the PMMA composite.…”

Section: Introductionmentioning

confidence: 99%

“…The conductivity increased four orders of magnitude when PS/PMMA blend was used as the matrix 21 . Joseph et al reported a conductivity of 10 −5 S m −1 and EMI SE of around 13 dB for the PMMA/GNP composites containing 10 wt% of GNP and prepared by solution blending 22,23 . Zhang et al achieved EMI SE of around 3.5 dB with the addition of 2 wt% of GNP in PMMA by solution process 24 .…”

Section: Introductionmentioning

confidence: 99%

Ionic liquids as dispersing agents of graphene nanoplatelets in poly(methyl methacrylate) composites with microwave absorbing properties

Caldas

Soares

Indrusiak

et al. 2020

J of Applied Polymer Sci

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Graphene nanoplatelets (GNP) is noncovalently functionalized with imidazolium-, pyridinium-, and vinyl-pyridinium-based ionic liquids containing bromide or bis(trifluoromethyl-sulfonyl)imide (TFSI) as the counteranions, and used to prepare poly (methyl methacrylate) (PMMA) nanocomposites by solution casting approach followed by compression molding technique. The PMMA composites loaded with 1.9 and 1.8 wt% of GNP in PMMA/GNP composite and PMMA/GNP/ionic liquids, respectively, were characterized by melting viscosity, thermogravimetric analysis and AC electrical conductivity (σ AC). The microwave absorption properties at the X-band (8.2-12.4 GHz) frequency were measured for systems with 1 mm thickness using the metal-backed configuration. PMMA nanocomposites loaded with GNP/N-dodecyl-4-vinyl-pyridinium.

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“…On the other hand, the interaction between fillers may determine the synergetic effects [18,19]. In the case of multi-walled carbon nanotubes (MWCNT), the frequent choice of the second filler is graphene nanoplatelets or graphene oxide [20][21][22][23], which allows the combination of different shielding properties [24]. At the same time, composites filled with a combination of carbonaceous and inorganic inclusions have been given less recognition [25,26].…”

Section: Introductionmentioning

confidence: 99%

Synergy Effects in Electromagnetic Properties of Phosphate Ceramics with Silicon Carbide Whiskers and Carbon Nanotubes

et al. 2019

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Hybrid composite materials based on an aluminium phosphate matrix with silicon carbide whiskers and multi-walled carbon nanotubes were studied in a wide frequency range (20 Hz to 36 GHz). It was demonstrated, that the addition of the silicon carbide whiskers enhances the dielectric permittivity and conductivity. This was explained by the difference in tunnelling parameters. Hybrid ceramics with nanotubes and whiskers also exhibits substantially improved electromagnetic shielding properties. The hybrid ceramics with 10 wt. % silicon carbide whiskers and a 1 mm thick 1.5 wt. % carbon nanotube layer, show higher than 50% absorption of electromagnetic radiation.

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Graphene and CNT filled hybrid thermoplastic composites for enhanced EMI shielding effectiveness

Cited by 53 publications

References 40 publications

A graphene film interlayer for enhanced electrical conductivity in a carbon-fibre/PEEK composite

A graphene film interlayer for enhanced electrical conductivity in a carbon-fibre/PEEK composite

Ionic liquids as dispersing agents of graphene nanoplatelets in poly(methyl methacrylate) composites with microwave absorbing properties

Synergy Effects in Electromagnetic Properties of Phosphate Ceramics with Silicon Carbide Whiskers and Carbon Nanotubes

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