EMI shielding based on MWCNTs/polyester composites

Lee, Yeng Seng; Wee, F. H.; Rahim, Hasliza A.; Malek, F.; You, Kok Yeow; Liyana, Z.; Jamlos, Mohd Aminudin; Ezanuddin, A.A.M.

doi:10.1007/s00339-018-1564-y

Cited by 37 publications

(12 citation statements)

References 25 publications

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“…67,68 Several carbon-based nanomaterials have been used to enhance the electromagnetic interference shielding efficiency (EMI SE) of polymeric nanocomposites including graphene, graphite, carbon black, carbon nano-fiber, carbon nanotube, etc. 69 Seng et al 70…”

Section: Emi Shieldingmentioning

confidence: 99%

“…77 These devices may be optimized to attain high efficiency, low power consumption, recharge-ability, and energy storage. [68][69][70][71][72][73][74][75][76][77][78][79][80] Huang et al 81 fabricated a polyesterbased flexible supercapacitor coated with carbon nanotubes. The supercapacitor showed fine specific capacitance equal to 15.67 cmF/cm 2 with 90% stability after 1000 cycles.…”

Section: Supercapacitorsmentioning

confidence: 99%

“…69 Seng et al. 70 studied the dielectric properties and shielding effectiveness of polyester–multi-walled carbon nanotube nanocomposites. The electromagnetic interference shielding efficiency (EMI SE) of 20 wt% nanofiller-based nanocomposite (35.2 dB) was much better than 1 wt% material (3 dB), from 8.2 to 18 GHz.…”

Section: Applications Of Polyester–carbonaceous Nanofiller Nanocomposmentioning

confidence: 99%

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Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers

Kausar

2018

Journal of Plastic Film & Sheeting

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Polyester is a versatile commercially significant polymer (thermoplastic/thermoset) well-known for its biodegradability and excellent thermal, mechanical, and chemical properties. Synthetic aromatic polyester resins usually have better moisture resistance, nonflammability, liquid crystal, strength, thermal, and environmental features compared with natural/aliphatic polyesters. Nanofillers can reinforce these important polymers to further enhance the final nanocomposite structural and physical characteristics. This review presents research devoted to polyester nanocomposites with essential nanofillers such as; nanodiamond, fullerene, carbon nanotube, graphene, and graphene oxide. High-performance polyester/nanocomposites have been developed based on modified polyester design, nanofiller functionality, and optimized interaction between matrix and nanofiller. This article also presents state-of-the-art technological development in the field of polyester/nanocomposites predominantly in supercapacitors, fuel cells, shape memory materials, electromagnetic shielding materials, textiles, and biomedical appliances. Furthermore, future scenarios in scientific development of these nanocomposites are discussed.

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Section: Emi Shieldingmentioning

confidence: 99%

Section: Supercapacitorsmentioning

confidence: 99%

Section: Applications Of Polyester–carbonaceous Nanofiller Nanocomposmentioning

confidence: 99%

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Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers

Kausar

2018

Journal of Plastic Film & Sheeting

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“…The efficiency of absorption increases with increasing frequency of EM radiation, with increasing thickness and permeability of the shielding material. In absence of magnetic properties, EMI shielding is dependent exclusively on dielectric properties and vice versa [19].…”

Section: Introductionmentioning

confidence: 99%

Progress in polymers and polymer composites used as efficient materials for EMI shielding

et al. 2021

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“…BPs are commonly prepared from vacuum filtration of an aqueous suspension of CNTs, which results in a porous film formed from randomly distributed CNTs interconnected by van der Waals forces. [21][22][23] One of buckypapers advantages is associated with their safe manipulation compared to the individual nanofillers and the porous structure, which facilitates their impregnation by polymer matrixes. 24 The dense CNTs structure promotes several conducting paths, which facilitate electrical conduction and electromagnetic shielding applications.…”

Section: Introductionmentioning

confidence: 99%

The influence of the transparent layer thickness on the absorption capacity of epoxy/carbon nanotube buckypaper at X‐band

Reis

Rezende

Ribeiro

2021

J of Applied Polymer Sci

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Carbon nanotube films (BPs) as EMI shielding materials can be applied in electronic and communication devices due to their high electrical conductivity.Sandwich structures can offer excellent shielding effectiveness by introducing a wave-transmitting layer between conductive films. However, the optimization of the structure demands a deep investigation and plays a crucial role in the final shielding properties of the composites. In this work, BPs are incorporated into epoxy substrates with variable thicknesses (1-6 mm) to fabricate epoxy/BP sandwich structures. The morphology of the CNT films is analyzed by SEM, and the electrical conductivity of all prepared samples is measured by 4-point method. The electromagnetic tests are carried out in the X-band (8.2-12.4 GHz) through the scattering parameters. SEM images reveal a porous structure without visible agglomeration. The electrical conductivity of the BP reaches up to 996 S/m, whereas the values for epoxy/BP composites varies in the range of 8.51-3.13 S/m (1 to 3 mm). BP total shielding efficiency (SE T ) is approximately 14 dB along the X-band spectrum, with similar contributions of reflection and absorption losses. While, the composites show mainly absorbing behavior, especially in the thicker samples, with more significant SE T values (23.4 dB-6 mm).

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EMI shielding based on MWCNTs/polyester composites

Cited by 37 publications

References 25 publications

Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers

Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers

Progress in polymers and polymer composites used as efficient materials for EMI shielding

The influence of the transparent layer thickness on the absorption capacity of epoxy/carbon nanotube buckypaper at X‐band

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