Fluorination effects of carbon black additives for electrical properties and EMI shielding efficiency by improved dispersion and adhesion

Im, Ji Sun; Kim, Jong Gu; Lee, Young-Seak

doi:10.1016/j.carbon.2009.05.017

Cited by 128 publications

(58 citation statements)

References 31 publications

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“…This result is attributed to the effects of the fluorine surface treatment of MMT and MWCNT. Fluorination led to better distribution of MWCNT in epoxy, which can be explained by the hydrophobic functional groups induced during fluorination [3,15,36]. Similar with above results, other groups reported that the dispersivity of MMT in epoxy resin is poor due to the hydrophilic properties of MMT but it can be improved by hydrophobic functional groups [37,38].…”

Section: Mmt and Mwcnt Distributed In The Epoxy By Fluorinationsupporting

confidence: 87%

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Im¹,

Lee²,

et al. 2010

Journal of Analytical and Applied Pyrolysis

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Section: Mmt and Mwcnt Distributed In The Epoxy By Fluorinationsupporting

confidence: 87%

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Im¹,

Lee²,

et al. 2010

Journal of Analytical and Applied Pyrolysis

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“…Tiwari et al [3] investigated the use of electrospun poly(ε-caprolactone) (PCL)/CB fibrous strips as flexible strain sensors using the principle that the conductive fibrous strips become non-conductive at sufficiently high strains, and they also proposed a two-dimensional layered-percolation model to explain the increase in electrical resistance with stretching. Based on polyacrylonitrile (PAN)/CB-related electrospun webs, Im et al [4,5] investigated carbon fiber/CB webs as electromagnetic shielding materials and gas sensors, and Wang et al [6] reported electrode materials. Polycarbonate (PC)/CB, poly(ethylene oxide)/CB, poly(methyl methacrylate)/CB, polyepichlorohydrin/CB, polyisobutylene/CB, polyvinypyrrolidone/CB, poly(vinyl chloride)/CB, polyaniline/CB, butyl rubber/CB and chitosan (CS)/CB electrospun mats were also prepared [712] .…”

Section: Introductionmentioning

confidence: 99%

Poly(ethylene terephthalate)/carbon black composite fibers prepared by electrospinning

et al. 2015

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Poly(ethylene terephthalate) (PET)/carbon black (CB) composite fibers with improved mechanical properties in tensile modulus and tensile strength are prepared by eletrospinning. Stable dispersions suitable for electrospinning are obtained by dispersing melt pre-compounded PET/CB composites in hexafluoroisopropanol. The fiber morphology and CB dispersion are investigated by FESEM and TEM. The addition of CB has no obvious effect on fiber diameter, and the average fiber diameters for all the samples are around 23 μm. CB in the fibers is in the form of submicron-sized clusters. The thermal properties of the PET/CB composite fibers are evaluated by DSC, showing almost unchanged melting temperature and crystallinity. Uniaxial tensile tests are used to measure the mechanical properties of the PET/CB composite fiber mats. The fiber mats containing 1 wt%8.5 wt% CB have significantly improved tensile modulus compared to neat PET fiber mat, showing reinforcing effect of CB. The electrical conductivity of the fiber mats has also been tested.

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“…2. The gas sensing device was prepared by using two Pt electrodes and a SiO 2 plate, as shown in previous work [27,28]. This measurement was performed in a stainless steel chamber with a volume of 1500 cm 3 .…”

Section: Measurement Of Gas Sensing Propertiesmentioning

confidence: 99%

“…jection, the injection of NH 3 gas was turned off and the recovery of electrical resistance was observed. The adsorbed gases on the gas sensors were removed by heating the sensors to 373 K at a pressure of 1 × 10 -3 torr for 5 min [27,28]. Recovery testing was carried out four times.…”

Section: Thermal Stabilitymentioning

confidence: 99%

Improvement in ammonia gas sensing behavior by polypyrrole/multi-walled carbon nanotubes composites

Jang¹,

Yun²,

Kim

et al. 2012

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Polypyrrole (PPy)/multi-walled carbon nanotubes (MWCNTs) composites were prepared by in situ polymerization of pyrrole on the surface of MWCNTs templates to improve the ammonia gas sensing properties. PPy morphologies, formed on the surface of MWCNTs, were investigated by field emission scanning electron microscopy. The thermal stabilities of the PPy/MWCNTs composites were improved as the content of MWCNTs increased due to the higher thermal stability of the MWCNTs. PPy/MWCNTs composites showed synergistic effects in improving the ammonia gas sensing properties, attributed to the combination of efficient electron transfer between PPy/MWCNTs composites and ammonia gas, and the reproducible electrical resistance variation on PPy during the gas sensing process.

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Fluorination effects of carbon black additives for electrical properties and EMI shielding efficiency by improved dispersion and adhesion

Cited by 128 publications

References 31 publications

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Improved flame retardant properties of epoxy resin by fluorinated MMT/MWCNT additives

Poly(ethylene terephthalate)/carbon black composite fibers prepared by electrospinning

Improvement in ammonia gas sensing behavior by polypyrrole/multi-walled carbon nanotubes composites

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