Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Aguilar, Javier; Bautista-Quijano, José Roberto; Avilés, F.

doi:10.3144/expresspolymlett.2010.37

Cited by 182 publications

(122 citation statements)

References 31 publications

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“…Such an approach allows obtaining effective percolation pathways between defined regions which is proven by experiments described e.g. in [21,[26][27][28][29]. Such solution is very effective considering that numerous researchers reported the necessary content of conducting particles into dielectric matrix in order to obtain percolation cluster on level much lower than 1%vol.…”

Section: Overview On Lightning Strike Protection Solutions In Aircraftmentioning

confidence: 90%

Concept of a Conducting Composite Material for Lightning Strike Protection

Katunin

Krukiewicz

Herega

et al. 2016

Advances in Materials Science

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The paper focuses on development of a multifunctional material which allows conducting of electrical current and simultaneously holds mechanical properties of a polymeric composite. Such material could be applied for exterior fuselage elements of an aircraft in order to minimize damage occurring during lightning strikes. The concept introduced in this paper is presented from the points of view of various scientific disciplines including materials science, chemistry, structural physics and mechanical engineering with a discussion on results achieved to-date and further plans of research.

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Section: Overview On Lightning Strike Protection Solutions In Aircraftmentioning

confidence: 90%

Concept of a Conducting Composite Material for Lightning Strike Protection

Katunin

Krukiewicz

Herega

et al. 2016

Advances in Materials Science

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“…In theory, t values of 1.33 and 2.2 represent 2D and 3D systems, respectively. However, experimental values are also stated outside this range somewhere else [17,18]. The density of the nanofiller (such as GNP) is frequently an approximate value.…”

Section: Electrical Conductivity and Percolation Threshold Measurementsmentioning

confidence: 99%

“…This theory will assist the determination of dimensions of conductive network in polymer matrices and percolation threshold values of PCs system. According to this theory, of the PCs is calculated by the following equation [11][12][13][14][15][16][17][18][19]:…”

Section: Electrical Conductivity and Percolation Threshold Measurementsmentioning

confidence: 99%

Electrical, Thermal, and Morphological Properties of Poly(ethylene terephthalate)-Graphite Nanoplatelets Nanocomposites

Alshammari

Wilkinson²,

Almutairi

2017

International Journal of Polymer Science

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Graphite nanoplatelets (GNP) were incorporated with poly(ethylene terephthalate) (PET) matrix by melt-compounding technique using minilab compounder to produce PET-GNP nanocomposites, and then the extruded nanocomposites were compressed using compression molding to obtain films of 1 mm thickness. Percolation threshold value was determined using percolation theory. The electrical conductivity, morphology, and thermal behaviors of these nanocomposites were investigated at different contents of GNP, that is, below, around, and above its percolation threshold value. The results demonstrated that the addition of GNP at loading >5 wt.% made electrically conductive nanocomposites. An excellent electrical conductivity of ∼1 S/m was obtained at 15 wt.% of GNP loading. The nanocomposites showed a typical insulator-conductor transition with a percolation threshold value of 5.7 wt.% of GNP. In addition, increasing screw speed enhanced the conductivity of the nanocomposites above its threshold value by ∼2.5 orders of magnitude; this behavior is attributed to improved dispersion of these nanoparticles into the PET matrix. Microscopies results exhibited no indication of aggregations at 2 wt.% of GNP; however, some rolling up at 6 wt.% of GNP contents was observed, indicating that a conductive network has been formed, whereas more agglomeration and rolling up could be seen as the GNP content is increased in the PET matrix. These agglomerations reduced their aspect ratio and then reduced their reinforcement efficiency. NP loading (>2 wt.%) increased degree of crystallinity and improved thermal stability of matrix slightly, suggesting that 2 wt.% of GNP is more than enough to nucleate the matrix.

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“…Carbon nanotube is one of promising alternatives. Small amounts of addition can enhance conductivity significantly due to its high aspect ratio with nanometer thick diameter [9][10]. However, it still has limitations of high cost and poor dispersibility in the polymer matrix due to van der Waals and Coulomb attractions.…”

Section: Introductionmentioning

confidence: 99%

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

Park¹,

Shin²

2016

Express Polym. Lett.

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Abstract.A novel method of polymer/low-melting-point metal alloy (LMA)/light metal fiber composite fabrication is proposed to solve problems of polymer/metal composites. The first step is mixing light metal particles with LMA at a temperature above the melting point of the LMA. The second step is cold extrusion of the LMA/light metal particles to fabricate LMA/light metal fibers. Thus, the LMA/light metal fibers with a density of ~4.5 g/cm 3 were obtained. The last step is compounding a polymer with the LMA/light metal fibers at the processing temperature of the polymer above the melting points of the LMA. The effects of the length and the cross-sectional shape of light metal fiber on the morphology of the LMA/light metal fibers in the polymer matrix were studied, as were electrical conductivities and mechanical properties of the composites. As the length and/or the cross-sectional aspect ratio of the fibers was increased, the domains of LMA/light metal fibers formed more networks so that the electrical conductivity increased, and specific surface area of the domains increased so that notched Izod impact strength was improved. Thus, the polymer/LMA/light metal fiber composites were fabricated without degrading processability even at 60 vol% loading and the electrical conductivities over 10 3 S/cm were achieved.

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Influence of carbon nanotube clustering on the electrical conductivity of polymer composite films

Cited by 182 publications

References 31 publications

Concept of a Conducting Composite Material for Lightning Strike Protection

Concept of a Conducting Composite Material for Lightning Strike Protection

Electrical, Thermal, and Morphological Properties of Poly(ethylene terephthalate)-Graphite Nanoplatelets Nanocomposites

Novel method of polymer/low-melting-point metal alloy/light metal fiber composite fabrication

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