A comparison of melt and solution mixing on the dispersion of carbon nanotubes in a poly(vinylidene fluoride) matrix

Ke, Kai; Yu, Weichao; Liu, Xiqiang; Cao, Jun; Luo, Yong; Yang, Jie; Xie, Bin; Yang, Ming‐Bo

doi:10.1016/j.compositesb.2011.09.007

Cited by 87 publications

(47 citation statements)

References 52 publications

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“…Based on the above characteristics, it is appropriate to employ CNTs as a conductive filler in polymer composites for many applications in the manufacturing such as electrostatic dissipation, interference shielding, and so on [5e7]. Of course, the electrical properties of polymer composites are affected by the dispersion of CNTs in the material, therefore it is important to understand and control the CNT dispersion [8].…”

Section: Introductionmentioning

confidence: 99%

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Wiwattananukul

Hachiya

Endo

et al. 2015

Composites Part B: Engineering

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a b s t r a c tA contradict interphase transfer of multi-walled carbon nanotubes (MWCNT) is detected in the immiscible polymer pair of polyethylene (PE) and polycarbonate (PC). When laminated sheets composed of PE with MWCNTs and PC are annealed in the molten state of both polymers, MWCNTs are found to move from PE to PC. This transfer phenomenon is originated from the difference in the interfacial tension with the aid of Brownian motion. On the contrary, MWCNTs prefer to reside in the PE phase in the blend of PE, PC and MWCNTs, even when MWCNTs are first dispersed in PC. This result indicates that MWCNTs transfer from PC to PE. The opposite direction of the transfer is attributed to the PE molecules being adsorbed on the surface of MWCNTs, which are generated during mixing.

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Section: Introductionmentioning

confidence: 99%

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Wiwattananukul

Hachiya

Endo

et al. 2015

Composites Part B: Engineering

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“…Horrocks et al exposed the polymeric samples to the ultrasonic probe with compounder extrusion, the result of which was clear evidence of improved dispersion after ultrasound treatment. Ke et al primarily dissolved poly(vinylidene fluoride) powder and suspended pristine multiwalled carbon nanotubes separately in N‐N ‐dimethylformamide. Finally, they mixed the homogeneous polyvinylidene fluoride solution and the suspension of multiwalled carbon nanotubes with the combination effects of ultrasonic vibration and mechanical stirring.…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO₂ nanoparticle on rheological behavior of poly(vinyl alcohol) solution

Shakouri

Ahmari

Hojjat

et al. 2015

J Vinyl Addit Technol

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In recent years, addition of nanoparticles to fluids and polymers has been used as a way of modifying rheological properties. Poly(vinyl alcohol) (PVA) and titanium dioxide (TiO2) nanoparticles aqueous composite nanofluids were prepared through the use of ultrasonic vibration. In fact, ultrasonic vibration is an advantageous method for nanoparticle dispersion. The preparation method prevents reduction of the polymer's molecular weight. TiO2 nanoparticles with different concentrations were employed to investigate the rheological characteristics of composite nanofluids. Rheological characteristics of base fluids and composite nanofluids were measured at different temperatures. Based on the results, all composite nanofluids, as well as base fluids, exhibited non‐Newtonian behavior and rheological characteristics of composite nanofluids, following the Herschel‐Bulkley model. In addition, model parameters are functions of temperature, PVA, and TiO2 nanoparticle concentrations. Also, two‐way interactions among temperature, PVA, and TiO2 nanoparticle concentrations affect flow index and consistency index of the Herschel‐Bulkley model. J. VINYL ADDIT. TECHNOL., 23:234–240, 2017. © 2015 Society of Plastics Engineers

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“…[9][10][11] Particularly, their unique structural, thermal and mechanical properties make them an ideal reinforcing material for polymer-based composites. 14 The large aspect ratios and poor dispersion of CNTs causes them to become easily agglomerated, which ultimately causes the direct contact between dispersed conductive fillers, leading to high tan δ or even conduction at or above the percolation threshold. In addition, higher surface area and larger aspect ratios also are responsible for excellent dielectric properties of CNTs/polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Influence of hyperbranched copper phthalocyanine grafted carbon nanotubes on the dielectric and rheological properties of polyarylene ether nitriles

Tong

Feng

et al. 2015

RSC Adv.

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Novel hyperbranched copper phthalocyanine covalently grafted carbon nanotubes/polyarylene ether nitriles (HBCuPc-CNTs/PAEN) flexile composite films were prepared via solution-casting. The CNTs are enwrapped by a functional intermediate HBCuPc thin layer and formed rough shell on the surface of CNTs to ensure a good dispersion of CNTs in the PAEN matrix, in which the dielectric layer (HBCuPc-CNTs) intercalated by the insulating layers (pure PAEN, acting as the isolation layer). Due to the high capacitance of the dielectric layer and the effective blocking off the mobility of free charge carriers by the insulating layers, the polymer-based composite films exhibit not only a higher permittivity but also extremely decreased dielectric loss and excellent breakdown strength. SEM images showed that HBCuPc-CNT was perfectly embedded in the matrix and no pullout phenomenon could be observed. In addition, rheological properties of resulted composite films also indicated that the grafted CNTs present better dispersion and stronger interactions with PAEN resin, thus resulting in significant improvement of the mechanical and thermal properties of PAEN composite films.

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A comparison of melt and solution mixing on the dispersion of carbon nanotubes in a poly(vinylidene fluoride) matrix

Cited by 87 publications

References 52 publications

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Effect of TiO₂ nanoparticle on rheological behavior of poly(vinyl alcohol) solution

Influence of hyperbranched copper phthalocyanine grafted carbon nanotubes on the dielectric and rheological properties of polyarylene ether nitriles

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A comparison of melt and solution mixing on the dispersion of carbon nanotubes in a poly(vinylidene fluoride) matrix

Cited by 87 publications

References 52 publications

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Anomalous transfer phenomenon of carbon nanotube in the blend of polyethylene and polycarbonate

Effect of TiO2 nanoparticle on rheological behavior of poly(vinyl alcohol) solution

Influence of hyperbranched copper phthalocyanine grafted carbon nanotubes on the dielectric and rheological properties of polyarylene ether nitriles

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Effect of TiO₂ nanoparticle on rheological behavior of poly(vinyl alcohol) solution