Effects of sonochemical modification of carbon nanotubes on electrical and electromagnetic shielding properties of epoxy composites

Kotsilkova, Rumiana; Ivanov, Evgeni; Bychanok, D.; Paddubskaya, A.; Demidenko, M. I.; Macutkevič, J.; Maksimenko, S. A.; Kuzhir, P.

doi:10.1016/j.compscitech.2014.11.004

Cited by 71 publications

(46 citation statements)

References 21 publications

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“…Similar studies were also done by others [61,62]. Kotsilkova and coworkers [63] recently used very low weight percent (0.03 to 0.3 wt%) of MWCNT in the epoxy matrix and checked the EMI shielding ability of the composite due to the variation of processing conditions. The alignment of the magnetic nanoparticles in CNT also triggers shielding effectiveness due to geometrical effects.…”

Section: Carbon Nanotubessupporting

confidence: 52%

Carbon nanostructure composite for electromagnetic interference shielding

2015

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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 Nanotubessupporting

confidence: 52%

Carbon nanostructure composite for electromagnetic interference shielding

2015

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“…The ultrasonic cavitation can generate bubble collapse and high-energy inter-particle collisions, producing intense local heating and high pressures together with implosion shock waves and micro jets in the liquid medium. The combined effect is able to provoke chemical reactions on the CNTs [15]. Poly(ester-imide)s (PEI)s show good mechanical properties, high thermal stability, facile processing and electrical insulation [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Efficient surface modification of MWCNTs with vitamin B1 and production of poly(ester-imide)/MWCNTs nanocomposites containing L-phenylalanine moiety: Thermal and microscopic study

Mallakpour

Soltanian²

2016

Express Polym. Lett.

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Abstract.A simple and efficient method was presented for chemical functionalization of multi-walled carbon nanotubes (MWCNTs) with vitamin B 1 . Poly(ester-imide) (PEI) based nanocomposites were prepared by the incorporation of different amounts of modified MWCNTs (5, 10, 15 wt%) into a chiral and biodegradable PEI by solution blending and ultrasonic dispersion methods. The chiral PEI was produced by a step-growth polymerization of chiral diacid with 4,4!-thiobis(2-tertbutyl-5-methylphenol). Spectroscopic and microscopic techniques were used to examine the chemical structure, morphology and thermal stability of the functionalized MWCNTs and the obtained nanocomposites. The microstructure study revealed the homogeneous dispersion of modified MWCNTs throughout the PEI matrix. Thermogravimetric analysis results confirmed that the heat stability of the prepared composites was improved compared to the pure PEI.

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“…Researchers have used the strategy of compounding the resin as matrix with fillers such as iron powder (Hu et al 2015), nickel (Kumar et al 2014), and copper (Wetherhold and McManaman 2005). Also some shielding materials contained organic carbon nanotubes (Li et al 2006(Li et al , 2012Kotsilkova et al 2015), carbon black (Das et al 2000;Sundararaj 2008, 2013), and graphite (Liang et al 2009;Morari et al 2011;Song et al 2014). Simultaneously, Song et al (2016) have prepared an acrylonitrile styrene acrylate copolymer (ASA), blending with graphite and carbon black composites, and showed that when carbon black loading was increased to 15% and graphite loading was at 25%, the EMI shielding effectiveness reached to more than 50 dB over the frequency range of 30 to 3000 MHz.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Conductivity and Electromagnetic Interference Shielding Effectiveness of Epoxy/Carbon Fiber and Epoxy/Carbon Black Composites via Mixing with Bamboo Charcoal

et al. 2017

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This study was aimed at preparing electromagnetic interference (EMI) shielding materials based on carbon black (CB), carbon fiber (CF), bamboo charcoal (BC), and epoxy resin. The effects of adding bamboo charcoal on the mechanical properties and electrical resistivity of epoxy composites were studied. Scanning electron microscopic (SEM) analysis, electrical resistivity, and electromagnetic interference (EMI) shielding effectiveness were also investigated. The composites were prepared at 120 °C by the curing-molding method through blending the fillers in epoxy resin. The results revealed that the BC/CB and BC/CF composites had perfect conductive network structure and resulted in better dynamic thermal mechanical properties. The electrical resistivity declined with the increase of bamboo charcoal contents; consequently, the EMI shielding effectiveness improved gradually. The lowest electrical resistivity, down to 0.071 Ω·m, corresponded to the best EMI shielding effectiveness of BC/CF composites, which could be above 60 dB over a frequency range of 30 MHz to 1500 MHz while the carbon fiber content was at 40 wt.%.

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Effects of sonochemical modification of carbon nanotubes on electrical and electromagnetic shielding properties of epoxy composites

Cited by 71 publications

References 21 publications

Carbon nanostructure composite for electromagnetic interference shielding

Carbon nanostructure composite for electromagnetic interference shielding

Efficient surface modification of MWCNTs with vitamin B1 and production of poly(ester-imide)/MWCNTs nanocomposites containing L-phenylalanine moiety: Thermal and microscopic study

Synergistic Conductivity and Electromagnetic Interference Shielding Effectiveness of Epoxy/Carbon Fiber and Epoxy/Carbon Black Composites via Mixing with Bamboo Charcoal

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