Dynamic synergy of graphitic nanoplatelets and multi-walled carbon nanotubes in polyetherimide nanocomposites

Kumar, Sandeep; Sun, Li‐Zhen; Caceres, Santiago; Li, B; Wood, Weston; Perugini, Anthony; Maguire, R G; Zhong, Wei‐Hong

doi:10.1088/0957-4484/21/10/105702

Cited by 145 publications

(102 citation statements)

References 40 publications

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“…Fan et al [10] noted a decrease of the percolation threshold and a higher electrical conductivity by combining CB with graphite nanoplatelets (GNP). Similar positive effects have been observed in carbon nanotube (CNT)/graphite nanoplatelet hybrids [11][12][13] and CNT/GNP/CB hybrids [14]. Furthermore, by combining CNT with CB or GNP the viscosity of the composite melt has been reported to decrease in comparison to single filler composite melt at the same filler loading [15].…”

Section: Introductionsupporting

confidence: 59%

Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites

Oxfall¹,

Ariu²,

Gkourmpis³

et al. 2015

Express Polym. Lett.

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Abstract. The effect of adding carbon black on the electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) copolymer composites produced via melt or solution mixing was studied. By adding a small amount of low-or high-structured carbon black to the nanocomposite, the electrical percolation threshold decreased and the final conductivity (at higher filler contents) increased. The effect on the percolation threshold was significantly stronger in case of the high-structured carbon black where replacing 10 wt% of the total filler content with carbon black instead of graphite nanoplatelets reduced the electrical percolation threshold from 6.9 to 4.6 vol%. Finally, the solution mixing process was found to be more efficient leading to a lower percolation threshold. For the composites containing high-structured carbon black, graphite nanoplatelets and their hybrids there was a quite reasonable correlation between the electrical and rheological percolation thresholds.

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Section: Introductionsupporting

confidence: 59%

Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites

Oxfall¹,

Ariu²,

Gkourmpis³

et al. 2015

Express Polym. Lett.

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“…Most of the studies reported in the literature on the use of hybrid filler systems were performed in epoxy resins [19][20][21][22][23][24]. Concerning the electrical percolation threshold, only small effects were found when replacing parts of the nanotubes by other conductive fillers or when additionally adding them.…”

Section: Introductionmentioning

confidence: 99%

Electrical and thermal properties of polyamide 12 composites with hybrid fillers systems of multiwalled carbon nanotubes and carbon black

Socher

Krause

Hermasch

et al. 2011

Composites Science and Technology

163

111

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thermal properties of polyamide 12 composites with hybrid fillers systems of multiwalled carbon nanotubes and carbon black. Composites Science and Technology, Elsevier, 2011, 71 (8) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractHybrid filler systems of multiwalled carbon nanotubes (MWCNTs) and carbon black (CB) were incorporated into two types of polyamide 12 (PA12) using small-scale melt mixing in order to identify potential synergistic effects on the interaction of these two electrical conductive fillers. Although no synergistic effects were observed regarding the electrical percolation threshold, at loadings well above the percolation threshold higher volume conductivities were obtained for samples containing both, MWCNT and CB, as compared to single fillers. This effect was more pronounced when using a higher viscous PA12 matrix. The formation of a co-supporting network can be assumed. The combined use of CB and MWCNTs improved the macrodispersion of MWCNT agglomerates, which can be assigned as a synergistic effect. DSC measurements indicated an effect of the nanofiller on crystallisation temperatures of PA12; however this was independent of the kind or amount of the carbon nanofiller.

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“…A large number of examples exist in the literature, entailing different constituents and different mechanical properties, with emphasis on modulus strength and fracture toughness, as presented in a variety of papers. [1][2][3][4][5][6] The re-discovery of carbon nanostructures in the 1990s 7 -and eventually of a host of other nanoparticlesgenerated immediate interest in the prospects of harnessing nanoparticles to ultra-high mechanical property composite materials, termed nanocomposites. It was their nominal mechanical properties, being orders of magnitude higher than those of classical reinforcement fibers, which made nanoparticles attractive as reinforcement constituents, wherein low concentrations would be OPEN ACCESS potentially required to match and surpass properties of classical composites of high concentrations.…”

Section: Introductionmentioning

confidence: 99%

Hybrid effects in the fracture toughness of polyvinyl butyral-based nanocomposites

Stern

Dyamant²,

Shemer³

et al. 2018

Nanocomposites

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a a the casali center of applied chemistry and the center for Nanoscience and Nanotechnology, the institute of chemistry, the Hebrew University of Jerusalem, Jerusalem, israel; b osG armor R&D, oran safety Glass Ltd, Kibbutz tzuba, israel; c school of materials science and engineering, Nanyang technological University, singapore, singapore ABSTRACT Hybrid polyvinyl butyral (PVB) nanocomposite films comprising surface-treated carbon nanotubes (CNT-COOH) and nanoclays (NC) were tested for their "trouser-leg" fracture toughness in comparison to the values of the respective CNT and NC parent composites and to that of the pristine PVB film. Relative to the fracture toughness of the pristine PVB, the parent composites PVB/CNT-COOH-0.2% and PVB/NC-2% and the PVB/CNT-COOH-0.2%/NC-2% hybrid exhibited 105, 118, and 181% improvements, respectively. These were both impressive fracture toughness improvements and a significant hybrid effect -the latter being only slightly lower than the nominal maximum effect of 223% based on the combined improvements of the parent composites. Part of the samples was tested qualitatively by ball impact test of ballistic glass samples with relevant films. Among these samples, the hybrid film presented the best result. A significant linear correlation between fracture surface energy and roughness values was taken to reflect a fracture resistance mechanism of crack front slowdown by its interactions with nanoparticles.

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Dynamic synergy of graphitic nanoplatelets and multi-walled carbon nanotubes in polyetherimide nanocomposites

Cited by 145 publications

References 40 publications

Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites

Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites

Electrical and thermal properties of polyamide 12 composites with hybrid fillers systems of multiwalled carbon nanotubes and carbon black

Hybrid effects in the fracture toughness of polyvinyl butyral-based nanocomposites

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