Size analysis of industrial carbon blacks by sedimentation and flow field-flow fractionation

Park, Young Hun; Kim, Won‐Suk; Lee, Dai Woon

doi:10.1007/s00216-002-1722-z

Cited by 19 publications

(13 citation statements)

References 19 publications

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“…of the particles onto the channel membrane. Similar result has been reported for other types of carbon black particles suggesting that they were not dispersed well in water containing cationic surfactants [6]. With 0.05% Triton X-100, a nonionic surfactant, it appeared as if the elution band of the main population was well separated from the void peak.…”

Section: Optimization Of Asflfff For Analysis Of Carbon Black Suspenssupporting

confidence: 80%

“…In AsFlFFF analysis of particles, a surfactant is usually added in the carrier liquid to provide an environment where the particles remain welldispersed in the channel during the elution of the particles. Considering the variety in the surface characteristics of particulate materials, the selection of a proper surfactant for AsFlFFF often requires 'trial and error' approach [6]. Fig.…”

Section: Optimization Of Asflfff For Analysis Of Carbon Black Suspensmentioning

confidence: 99%

“…It is known that the size and the size distribution of the carbon black particles are important parameters that determine its applicability. When used in ink, the smaller the particle size the better particle dispersion is achieved [6]. Carbon black is hydrophobic in nature, and tends to aggregate when suspended in water.…”

Section: Introductionmentioning

confidence: 99%

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Application of flow field-flow fractionation (FlFFF) for size characterization of carbon black particles in ink

Bae

Kim

Rah³

et al. 2012

Microchemical Journal

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Section: Optimization Of Asflfff For Analysis Of Carbon Black Suspenssupporting

confidence: 80%

Section: Optimization Of Asflfff For Analysis Of Carbon Black Suspensmentioning

confidence: 99%

See 1 more Smart Citation

Application of flow field-flow fractionation (FlFFF) for size characterization of carbon black particles in ink

Bae

Kim

Rah³

et al. 2012

Microchemical Journal

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“…Although the importance of such transformation of the obtained values has been claimed, 20 previous comparative studies on averaged sizes measured using FFFF, macroscopic methods (TEM and SEM), and DLS had been conducted without the alternation of size in the same dimension. [21][22][23][24] Our study is therefore an essential effort at comparing the size and size distribution of nanoparticles by using results with the same dimensionality obtained using different methods. In this study, we selected silica nanoparticles to prevent the shrinkage of the examined particles during the vacuum-based sample preparation process for FE-SEM.…”

Section: Materials Expressmentioning

confidence: 99%

Determination of size distribution of silica nanoparticles: A comparison of scanning electron microscopy, dynamic light scattering, and flow field-flow fractionation with multiangle light scattering methods

Kato¹,

Nakamura²,

Noda³

2014

Mat Express

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Methods for the accurate determination of the size and size distribution of nanomaterials are essential for nanoand biotechnology. Among the methods available, flow field-flow fractionation with multiangle light scattering and UV absorption detectors (FFFF-MALS-UV) is considered to be a more effective method than field emission scanning electron microscopy (FE-SEM) and dynamic light scattering (DLS) for determining the size and size distribution of nanomaterials. However, the raw values of size and size distribution obtained using these three methods are number-, volume-, and z-averaged, respectively. In order to compare the size and size distribution determined using different measurement methods, it is necessary to transform the raw values into the same dimensionality of length. In this study, we transformed the raw values obtained using the above mentioned three methods into the same dimensionality and found that the results for averaged size and size distribution were qualitatively similar despite the differences between the measurement methods. However, even though the obtained values were transformed to have the same dimensionality, the values obtained using FFFF-MALS-UV were found to be weighted more heavily by larger particles than those obtained using FE-SEM. Furthermore, the results obtained using DLS were weighted more heavily by larger particles than those obtained using FFFF-MALS-UV. This result was due to the observed physicochemical phenomena utilized by these two measurement methods, namely, UV absorption in the case of FFFF-MALS-UV and light scattering intensity in the case of DLS.

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“…In selecting CNT, it is necessary to consider a multitude of criteria on the macro-and nanolevel: homogeneity, purity, chirality, specific surface area, strength, presence of defects and functional groups on the surface. For use in electronics, the presence of defects, heteroatoms, functional groups, or adsorbed compounds on the surface of CNT is an extremely important negative factor, since it decreases the conductivity and effectiveness of ballistic charge transport [7,8]. In catalysis, the basic parameters which must be controlled are the specific surface area, defectiveness, and chemical state of the surface [9].…”

mentioning

confidence: 99%

Carbon nanotubules: morphology and properties

et al. 2011

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The morphology and sorption characteristics of carbon nanotubules of different types were investigated. Experiments were conducted on separating individual carbon nanotubules from agglomerates with mechanical, electric arc, and ultrasound effects. Fractionation of suspensions of nanotubules combined with ultrasound treatment is the most promising. The effect of the chemical composition of the surface of carbon nanotubules on their electrical properties was demonstrated. Composite film materials with resistivity of 15 . 10 6 at a 0.5 wt. % degree of filling were obtained from fluoroplastic F-2M and carbon nanotubules CNT-6.Since their discovery by Iijima in 1991, carbon nanotubules (CNT) have drawn the attention of scientists working in different areas of science and engineering. There are now many varieties of carbon nanotubules and nanofibres that differ in structure, properties, and areas of application. Two basic types of nanotubules are usually distinguished: single-layer and multilayer carbon nanotubules. Model images of these CNT are shown in Fig. 1.Carbon nanotubules have a number of interesting properties due to the defined structure: high mechanical strength, thermal and electrical conductivity, chemical stability, etc.[1]. Their internal volume can be filled with different substances, for example, hydrogen, drugs, and metals. For this reason, nanotubules can be unusual filled template materials or "nanoreactors" [2,3]. The surface of carbon nanotubules and nanofibres can easily be chemically modified (functionalized) to improve their dispersibility in different solvents and increase the sorption properties [4]. The comparative characteristics of different carbon materials are reported in Table 1 [ 5,6].Due to their unique properties, carbon nanotubules are ideal disperse fillers for fabricating light composite materials. Despite the important progress in production of CNT, their structural parameters are critical moments for each concrete area of application. A difference in the structure inevitably results in a difference in the properties of nanoparticles, which is manifested in the wide range of criteria in evaluating them (see Table 1). In selecting CNT, it is necessary to consider a multitude of criteria on the macro-and nanolevel: homogeneity, purity, chirality, specific surface area, strength, presence of defects and functional groups on the surface. For use in electronics, the presence of defects, heteroatoms, functional groups, or adsorbed compounds on the surface of CNT is an extremely important negative factor, since it decreases the conductivity and effectiveness of ballistic charge transport [7,8]. In catalysis, the basic parameters which must be controlled are the specific surface area, defectiveness, and chemical state of the surface [9]. For using CNT in medicine, it is necessary to rigorously monitor the presence of contaminants and functional groups, since these factors affect the biocompatibility and cytotoxicity of the nanoparticles [10-12].We report data characterizing the propertie...

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Size analysis of industrial carbon blacks by sedimentation and flow field-flow fractionation

Cited by 19 publications

References 19 publications

Application of flow field-flow fractionation (FlFFF) for size characterization of carbon black particles in ink

Application of flow field-flow fractionation (FlFFF) for size characterization of carbon black particles in ink

Determination of size distribution of silica nanoparticles: A comparison of scanning electron microscopy, dynamic light scattering, and flow field-flow fractionation with multiangle light scattering methods

Carbon nanotubules: morphology and properties

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