The incorporation of single-walled carbon nanotubes into polymerized high internal phase emulsions to create conductive foams with a low percolation threshold

Hermant, MC Marie Claire; Verhulst, M; Kyrylyuk, AV Andriy; Klumperman, Bert; Koning, CE Cor

doi:10.1016/j.compscitech.2008.12.013

Cited by 75 publications

(41 citation statements)

References 23 publications

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“…[ 32 c] Previous attempts whereby the nanotubes were dispersed within the aqueous phase using the surfactant sodium dodecyl sulphate (SDS) failed due to emulsion phase separation, as this surfactant preferentially forms o/w emulsions. [ 33 ] This problem was overcome by dispersion of swCNTs in the aqueous phase of the emulsion by functionalisation with an amphiphilic block copolymer at low pH. Concentrations of 0.1 wt% with respect to the oil phase of these functionalised swCNTs produced a highly porous open cell polyHIPE.…”

Section: Templating Particle-stabilized High Internal Phase Emulsionsmentioning

confidence: 99%

Functional Porous Polymers by Emulsion Templating: Recent Advances

2010

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Section: Templating Particle-stabilized High Internal Phase Emulsionsmentioning

confidence: 99%

Functional Porous Polymers by Emulsion Templating: Recent Advances

2010

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“…), ceramic bulk powders, catalyst pellets, and reinforcing fibers in industry. [1][2][3][4][5][6] On the sub-micron length scale anisometric colloids such as rods and platelets form dense random packings and glasses, 4,[7][8][9][10][11][12][13] while protein filaments may randomly pack in animal cells.…”

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confidence: 99%

Isochoric ideality in jammed random packings of non-spherical granular matter

et al. 2011

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Randomly packed particles in granular matter, ubiquitous in nature and industry, usually defy simple predictions for the optimal amorphous packing density because jammed granules are strongly correlated. While mixing different granular shapes seems to be a further complication, we discovered in simulations that binary rodsphere mixtures harbor a surprisingly simple dependence of packing volume fraction on mixture composition. This isochoric ideality covers the entire composition range and is experimentally validated by mixtures of sphero-cylindrical TicTac sweets and spherical beads: their joint random packing volume is indeed independent of the segregation state. Isochoric ideality occurs in a rod-shape range that includes the unique aspect ratio, which universally maximizes rod-sphere packing densities and suggests a novel amorphous analog of a plastic crystal, namely rod-sphere mixtures with completely uncorrelated particle orientations.The puzzle of dense amorphous particle packings has caught the close attention of mathematicians and scientists from many different disciplines. In particular, non-spherical particles and their mixtures, jammed into random packings, are abundant and occur on widely different length scales. Macroscopic instances of anisotropic granular matter, among many others, are the grains in solidifying igneous rocks, various grains in food (rice, pasta's, TicTac sweets, etc.), ceramic bulk powders, catalyst pellets, and reinforcing fibers in industry.1-6 On the sub-micron length scale anisometric colloids such as rods and platelets form dense random packings and glasses, 4,7-13 while protein filaments may randomly pack in animal cells.14 Essential questions are how tight one can pack particles in jammed amorphous packings and how to optimize the corresponding random close packing (RCP) density. In quest of the optimal or densest random packing, particle non-sphericity has proven to be an effective means to maximize the RCP density. Recent studies on random packing of sphero-cylinders 15 and ellipsoids 16,17 revealed an intriguing non-monotonic dependence of the RCP density on the particle elongation. Starting from the Bernal random sphere packing, the RCP density first raises to a maximum for nearly spherical particles and only beyond this maximum the random packing density monotonically decreases with particle aspect ratio. So far, this peculiar maximum has only been observed for monodisperse granules 15-17 and colloids. 9 As polydispersity in size and shape is often unavoidable, one important question is how to optimize packing densities of granular mixtures, which ideally could be predicted from densities of the monodisperse components. It is therefore of fundamental and practical interest to investigate for such mixtures the existence of a density maximum and the universality, if any, in its location or magnitude.We uncover the universality in jamming of rather short spherocylinders of length L (including two hemi-spherical caps at both ends) and diameter D by investigating the RCP of...

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“…To date, very few articles have reported on the fabrication of functional nanocomposites from CNT stabilized emulsions [59][60][61] . For instance, emulsions containing polymers and CNTs are now used to fabricate conductive polymer foam nanocomposites [59,61] .…”

Section: Introductionmentioning

confidence: 99%

“…For instance, emulsions containing polymers and CNTs are now used to fabricate conductive polymer foam nanocomposites [59,61] . CNTs are insoluble in either water or oil.…”

Section: Introductionmentioning

confidence: 99%

Smart polymer nanocomposite water and oil repellent coatings for aluminum

Bayer

2014

Handbook of Smart Coatings for Materials Protection

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The incorporation of single-walled carbon nanotubes into polymerized high internal phase emulsions to create conductive foams with a low percolation threshold

Cited by 75 publications

References 23 publications

Functional Porous Polymers by Emulsion Templating: Recent Advances

Functional Porous Polymers by Emulsion Templating: Recent Advances

Isochoric ideality in jammed random packings of non-spherical granular matter

Smart polymer nanocomposite water and oil repellent coatings for aluminum

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