Conductivity Percolation of Carbon Nanotubes in Polyacrylamide Gels

Pekcan, Önder; Evingür, Gülşen Akın

doi:10.5772/17314

Cited by 3 publications

(2 citation statements)

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“…The desorption coefficients, D dI , were obtained from Eq. (2) and measured by fluorescence technique for various MWCNT content samples, where it was observed that the desorption coefficient decreased as the MWCNT content is increased up to 1 wt% MWCNT and reached to a plateau by presenting the different behaviors below and above the critical MWCNT (1 wt%) content at which the conducting percolation cluster starts to appear [21].…”

Section: Optical Properties Of Different Polymer-cnts Compositesmentioning

confidence: 99%

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Optical, Mechanical, and Electrical Properties of Polymer Composites Doped by Multiwalled Carbon Nanotubes

Evingür¹,

Pekcan²

2016

Carbon Nanotubes - Current Progress of Their Polymer Composites

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Three-dimeσsiτσal σetwτrks caσ be hydrτphilic aσd/τr hygrτscτpic. Optical, mechaσi-cal, aσd electrical prτperties τf these materials eσcτmpass maσy fields τf techστlτgy. Cτmpτsites τf carbτσ σaστtubes CNTs iσ pτlymeric materials have attracted cτσsid-erable atteσtiτσ iσ the research aσd iσdustrial cτmmuσities due tτ their uσique τptical, mechaσical, aσd electrical prτperties. CNT pτlymer σaστcτmpτsites pτssess high stiffσess, high streσgth, aσd gττd electrical cτσductivity at relatively lτw cτσceσtra-tiτσs τf CNT filler. Here, iσ this chapter, we survey the τptical, mechaσical, aσd electrical mechaσisms fτr variτus pτlymeric systems. Cτmpτsite gels aσd films were prepared with variτus mτlar perceσtages τf multiwalled carbτσ σaστtubes MWCNTs . The τptical, mechaσical, aσd electrical behaviτrs τf variτus cτmpτsite gels dτped by MWCNT are alsτ discussed iσ the each sectiτσs τf the chapter. The τptical behaviτrs τf the cτmpτ-sites were perfτrmed by the UV-Vis spectrτscτpy aσd fluτresceσce spectrτscτpy iσ the first part τf the chapter. Oσ the τther haσd, cτmpressive testiσg techσique aσd rheτlτgi-cal measuremeσts were emplτyed tτ determiσe the variatiτσs τf mechaσical prτperties τf the cτmpτsites iσ the secτσd part τf the chapter. Lastly, we review the electrical prτperties τf the cτmpτsites imprτved sigσificaσtly by additiτσ τf MWCNTs researches.

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Section: Optical Properties Of Different Polymer-cnts Compositesmentioning

confidence: 99%

“…Polyacrylamide (PAAm)-MWCNT composite gels were prepared by free radical cross-linking copolymerization [21]. PAAm was doped with various (0.1-15 wt%) of MWCNTs.…”

Section: Optical Properties Of Different Polymer-cnts Compositesmentioning

confidence: 99%