On the influence of the processing conditions on the performance of electrically conductive carbon nanotube/polymer nanocomposites

Grossiord, Nadia; Kivit, Pjj; Loos, Joachim; Meuldijk, J.; Kyrylyuk, AV Andriy; Schoot, Ppam Paul van der; Koning, CE Cor

doi:10.1016/j.polymer.2008.04.033

Cited by 94 publications

(69 citation statements)

References 51 publications

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“…The material has had a meteoric rise since then, and parallel efforts mostly on conductive nanocomposites have provided the major thrust of investigations. Latex technology was again employed to achieve compatibility between surfactants and CNTs for aqueous based dispersions [68][69][70]. However, there is no generally accepted definition of the term "latex technology".…”

Section: Surfactant and Latex Technologymentioning

confidence: 99%

Graphene-philic surfactants for nanocomposites in latex technology

Mohamed

Ardyani

Bakar

et al. 2016

Advances in Colloid and Interface Science

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Graphene is the newest member of the carbon family, and has revolutionized materials science especially in the field of polymer nanocomposites. However, agglomeration and uniform dispersion remains an Achilles" heel (even an elephant in the room), hampering the optimization of this material for practical applications. Chemical functionalization of graphene can overcome these hurdles but is often rather disruptive to the extended piconjugation, altering the desired physical and electronic properties. Employing surfactants as stabilizing agents in latex technology circumvents the need for chemical modification allowing for the formation of nanocomposites with retained graphene properties. This article reviews the recent progress in the use of surfactants and polymers to prepare graphene/polymer nanocomposites via latex technology. Of special interest here are surfactant structure-performance relationships, as well as background on the roles surfactantgraphene interactions for promoting stabilization.

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Section: Surfactant and Latex Technologymentioning

confidence: 99%

Graphene-philic surfactants for nanocomposites in latex technology

Mohamed

Ardyani

Bakar

et al. 2016

Advances in Colloid and Interface Science

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“…In recent years, a great deal of attention has been paid to the electrical properties of such composites, given the great promises that these materials hold as multifunctional materials in the area of electronics, sensors, and actuators [1][2][3][4]. Electrical conductivity of CNT-polymer nanocomposites using very low CNT weight loadings typically reaches the level of semiconductors (~0.001-0.1 S/m) [4][5][6][7]. The conductivity of these composites can reach up to several hundreds of S/m when CNTs are aligned or decorated [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…The critical CNT content required to form a percolation network depends mainly on the CNT type (single-wall carbon nanotube, SWCNT, or multi-wall carbon nanotube, MWCNT), intrinsic CNT quality (amorphous carbon content and ratio metallic/semi-conductive tubes), aspect ratio (L/d), morphology, polymer matrix and dispersion state, and hence the range of reported percolation thresholds for CNT-polymer systems is vast, see e.g. [4][5][6][7][8][9][10][11]. For the same polymer and CNT intrinsic quality, dispersion state and CNT aspect ratio have been recognized as the critical factors governing composite conductivity [11].…”

Section: Introductionmentioning

confidence: 99%

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

Aguilar

Bautista-Quijano

Avilés³

2010

Express Polym. Lett.

182

109

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Abstract. Electrical conductivity of 150-200 μm thick polysulfone films loaded with 0.05-0.75% w/w multiwall carbon nanotubes was systematically investigated for two types of dispersion states, uniformly dispersed and agglomerated at the micro-scale. The percolation threshold was found at 0.11% and 0.068% w/w for the uniformly dispersed and agglomerated films, respectively. Overall, the conductivity of the films with agglomerated nanotubes was higher than that of the uniformly dispersed ones, with marked differences of 2 to 4 orders of magnitude for carbon nanotubes loadings in the upper vicinity of the percolation threshold (0.1-0.3% w/w). The increased conductivity of the agglomerated state is explained by the increased nanotube-to-nanotube contact after the percolating network has formed, which facilitates electron transfer.

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“…Carbon nanotubes (CNTs) have been considered as ideal reinforcing candidates for the production of multifunctional polymer composites, since they simultaneously display high aspect ratio and nanometer dimensions, and more importantly, extraordinary mechanical strength and high electrical and thermal conductivity [16][17][18][19]. However, in order to obtain the desired performance in the final composites, a tailored CNT dispersion in the polymers has to be reached and the strong Van der Waals interaction between the tubes [20,21] has to be overcome. We have recently focused on the development of conductive composites by using carbon nanotubes, and mixing them with commercial bio degradable polymers [12,22,23].…”

mentioning

confidence: 99%