Electrical conductivity of poly(vinylidene fluoride)/carbon nanotube composites with a spherical substructure

Zhao, Zhongxing; Zheng, Weitao; Yu, Wei; Long, Beihong

doi:10.1016/j.carbon.2009.03.043

Cited by 51 publications

(33 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under this circumstance, composites present a segregated structure of CNF, which are located on the surface of the polymer, coating the particles, instead of being randomly distributed in the whole system. Although for very different systems, a quite similar behavior has been reported [18,19]. This arrangement is supposed to act as a footprint during the compression molding as it is shown schematically in Fig.…”

Section: Resultsmentioning

confidence: 57%

Conducting nanocomposites based on polyamide 6,6 and carbon nanofibers prepared by cryogenic grinding

Linares

Canalda

Cagiao

et al. 2011

Composites Science and Technology

View full text Add to dashboard Cite

a b s t r a c tNanocomposites based on polyamide 6,6 and carbon nanofiber have been obtained following a new procedure. It consists of the physical mixing of the polymer matrix, in the form of powder, and the corresponding amount of additive. Then, samples were prepared by compression molding and their structural characteristics, as well as their thermal and electrical properties were determined. The materials present good electrical conductivity at lower percolation thresholds than those corresponding to systems prepared by melt mixing. The study was carried out with two different grain sizes, and the findings are discussed in terms of the different size ratios of polymer to carbon nanofiber.

show abstract

Section: Resultsmentioning

confidence: 57%

Conducting nanocomposites based on polyamide 6,6 and carbon nanofibers prepared by cryogenic grinding

Linares

Canalda

Cagiao

et al. 2011

Composites Science and Technology

View full text Add to dashboard Cite

show abstract

“…Tripling the quantity of MWCNT (from 1 to 3 wt%), the conductivity increases only 2 orders of magnitude, thus indicating that a percolation threshold has already been reached at 1 wt%. Nevertheless, studies do not agree on the percolation threshold [40][41][42][43][44] since there is no unique value, as it depends on the process conditions, the possible preferred orientation of the CNTs in the matrix, the CNTs type and their characteristics (i.e. AR, surface modification [45][46][47][48]).…”

Section: Pani Systemmentioning

confidence: 99%

Electrically conducting polymer nanostructures confined in anodized aluminum oxide templates (AAO)

Blaszczyk-Lezak¹,

Desmaret²,

Mijangos

2016

Express Polym. Lett.

View full text Add to dashboard Cite

“…Figure 7b represents the frequency dependence AC conductivity of the nanocomposites with a variation of CNT loading at a constant concentration of HIPS (60 wt%) bead. Compared to the pure HIPS, a higher Shrivastava et al -eXPRESS Polymer Letters Vol.8, No.1 (2014) [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] conductivity is observed in the nanocomposites with increasing wt% of CNT loading. With an increase in CNT loading from 0~0.6 wt%, a sharp increase in conductivity was found in the low frequency region.…”

Section: Electrical Propertiesmentioning

confidence: 99%

“…A considerable research effort has been given towards the development of new methodology to reduce the percolation threshold of CNT in polymer matrix. Zhao et al [28] reported the percolation threshold at 0.07 wt% of MWCNT in poly vinylidene fluoride (PVDF) by coating the PVDF spherical particles with MWCNTs through sonication. Mu et al [29] developed a contiguous, cellular structure of SWCNT using SWCNT coated PS pellets followed by hot pressing.…”

mentioning

confidence: 99%

Influence of selective dispersion of MWCNT on electrical percolation of in-situ polymerized high-impact polystyrene/MWCNT nanocomposites

Shrivastava¹,

Maiti²,

Suin³

et al. 2014

Express Polym. Lett.

View full text Add to dashboard Cite

Abstract. This work demonstrates a simple method to develop highly conducting high impact polystyrene (HIPS)/multiwall carbon nanotube (MWCNT) nanocomposites through selective dispersion of MWCNT in HIPS matrix. The method involves in-situ polymerization of polybutadiene containing styrene monomer in the presence of HIPS beads and MWCNT. A significantly lower percolation threshold value than ever reported for HIPS/MWCNT systems was obtained using unmodified unaligned MWCNTs. With the increase in HIPS bead content (at a particular MWCNT loading) in the HIPS/MWCNT nanocomposites, the conductivity value was increased, suggesting that the presence of HIPS beads acted as excluded volume that decreased the percolation threshold. An increase in electrical conductivity from 1.91·10 -7 to 1.15·10 -5 S/cm was evident, when the HIPS bead content was increased from 30 to 60 wt% at a constant loading of MWCNT (i.e. 0.6 wt%). The morphological investigation of the HIPS/MWCNT nanocomposites revealed that, the MWCNTs were selectively dispersed in the in-situ polymerized HIPS region, outside the HIPS beads, which resulted in the lowering of the percolation threshold to a lower value of 0.54 wt%. The morphology and electrical properties of the nanocomposites have been discussed in detail in the manuscript.

show abstract

Electrical conductivity of poly(vinylidene fluoride)/carbon nanotube composites with a spherical substructure

Cited by 51 publications

References 11 publications

Conducting nanocomposites based on polyamide 6,6 and carbon nanofibers prepared by cryogenic grinding

Conducting nanocomposites based on polyamide 6,6 and carbon nanofibers prepared by cryogenic grinding

Electrically conducting polymer nanostructures confined in anodized aluminum oxide templates (AAO)

Influence of selective dispersion of MWCNT on electrical percolation of in-situ polymerized high-impact polystyrene/MWCNT nanocomposites

Contact Info

Product

Resources

About