1-butyl-3-methylimidazolium chloride assisted electrospinning of SAN/MWCNTs conductive reinforced composite membranes

Vassiljeva, Viktoria; Krumme, Andres; Märtson, Triin; Rikko, M.; Tarasova, Elvira; Savest, Natalja; Viirsalu, Mihkel

doi:10.1016/j.elstat.2015.09.002

Cited by 9 publications

(5 citation statements)

References 24 publications

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“…(All PI-CNT films had higher Young’s modulus than that of the parent PI film, but a turning point was observed in PI-14% CNT in which increasing CNT amount slightly reduced the Young’s modulus. The result was not abnormal, as in many works, , CNT significantly enhancing the stiffness was only observed at a quite low CNT amount of below 10%.) Owing to the requirement of wearable devices, the PI-20% CNT film was chosen for further investigation because of its maximum 10% deformation and as high as 7.5 MPa stress.…”

Section: Resultssupporting

confidence: 67%

“…Regular electrospinning also could not well produce the conductive membrane electrode because of the inverse relationship between spinnability and electron conductivity. It was revealed that usually higher than 10% carbon induced bead formation and unstable jet flow …”

Section: Resultsmentioning

confidence: 99%

“…It was revealed that usually higher than 10% carbon induced bead formation and unstable jet flow. 44 Therefore, a sophisticatedly modified electrospinning was used in which the common Al receiving target was replaced by the CNT ink and the polyamide acid (PAA) intermediate flew into the ink under the electric field force, entangled with the CNT, and formed homogeneously intertwined PAA-carbon fiber and further PI-carbon fiber after programmed heating.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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CNT-Intertwined Polymer Electrode toward the Practical Application of Wearable Devices

Liu

Zhao

et al. 2019

ACS Appl. Mater. Interfaces

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One of the greatest challenges for wearable electronics is the lack of virtually flexible electrodes with satisfactory electrochemical performance, and there is always a “softness vs effective capacity” dilemma. Herein, a polymer electrode is proposed. The carefully chosen and partially conjugated polyimide realizes the dual function of a flexible agent and an active agent. The softness of the electrode is rendered by the polymer, while the carbon nanotube ensures electron transfer (ET) within the polymer. A modified electrospinning method has been used in the preparation of a carbon nanotube (CNT)-intertwined polyimide (PI) film. The binder-free and current collector-free polymer electrode has as high as 80% active phase and releases near-theoretical capacity accompanied by very stable cycling up to 200 cycles. Owing to the dual role of the polymer component, the softness vs effective capacity dilemma has been well addressed. Aiming at the practical application, a fatigue test has been first conducted in a practical mode and the well-reserved electrochemical activity under extreme stress change as well as in plenty of electrolyte has been revealed. The work realizes that the flexible electrode well fulfills the requirement and sheds more light on the application of the polymer electrode materials.

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Section: Resultssupporting

confidence: 67%

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

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CNT-Intertwined Polymer Electrode toward the Practical Application of Wearable Devices

Liu

Zhao

et al. 2019

ACS Appl. Mater. Interfaces

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“…The conductivity of the samples obtained from bacterial cellulose modified with CNT was in the range from 0.034 to 0.39 S/cm. Further, the use of Ionic liquids, 1-butyl-3-methylimidazolium chloride ([BMIM]Cl, 20%), in the production of electrospun hybrid carbon nanotube nanofibers with styrene-acrylonitrile resin showed a significant increase in the conductivity from 1.08 × 10 −6 to 5.9 × 10 −6 S/cm for samples containing 3 wt % carbon nanotubes [ 136 , 137 ]. In order to study the sensitivity of the obtained biomaterial, the strain-induced electromechanical response and resistance versus strain were monitored during the application of tensile force.…”

Section: Multi-functional Properties Of Bio-based Composites and Tmentioning

confidence: 99%

Conductive Polymer Composites from Renewable Resources: An Overview of Preparation, Properties, and Applications

et al. 2019

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This article reviews recent advances in conductive polymer composites from renewable resources, and introduces a number of potential applications for this material class. In order to overcome disadvantages such as poor mechanical properties of polymers from renewable resources, and give renewable polymer composites better electrical and thermal conductive properties, various filling contents and matrix polymers have been developed over the last decade. These natural or reusable filling contents, polymers, and their composites are expected to greatly reduce the tremendous pressure of industrial development on the natural environment while offering acceptable conductive properties. The unique characteristics, such as electrical/thermal conductivity, mechanical strength, biodegradability and recyclability of renewable conductive polymer composites has enabled them to be implemented in many novel and exciting applications including chemical sensors, light-emitting diode, batteries, fuel cells, heat exchangers, biosensors etc. In this article, the progress of conductive composites from natural or reusable filling contents and polymer matrices, including (1) natural polymers, such as starch and cellulose, (2) conductive filler, and (3) preparation approaches, are described, with an emphasis on potential applications of these bio-based conductive polymer composites. Moreover, several commonly-used and innovative methods for the preparation of conductive polymer composites are also introduced and compared systematically.

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“…These cast films showed conductivities up to 3.2 x 10 -2 S/cm, thus demonstrating an approach for ionic liquidbiopolymer conductive nanocomposites with graphene. Further, the use of IL, 1-butyl-3methylimidazolium chloride ([BMIM]Cl, 20%), in the production of electrospun hybrid carbon nanotube nanofibers with styrene-acrylonitrile resin showed a significant increase in the conductivity from 1.08 x 10 -6 S/cm to 5.9 x 10 -6 S/cm for samples containing 3 wt% carbon nanotubes [29]. However, the fabrication of electrospun graphene-biopolymer conductive nanofibers remains a significant challenge.…”

Section: Introductionmentioning

confidence: 99%

A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

Javed

Krumme

Viirsalu

et al. 2018

Carbon

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Owing to its high conductivity, graphene has been incorporated into polymeric nanofibers to create advanced materials for flexible electronics, sensors and tissue engineering. Typically, these graphenebased nanofibers are prepared by electrospinning synthetic polymers, whereas electrospun graphenebiopolymer nanofibers have been rarely reported due to the poor compatibility of graphene with biopolymers. Herein, we report a new method for the preparation of graphene-biopolymer nanofibers using the judicious combination of an ionic liquid and electrospinning. Cellulose acetate (CA) has been used as the biopolymer, graphene oxide (GO) nanoparticles as the source of graphene and 1-butyl-3methylimidazolium chloride ([BMIM]Cl) as the ionic liquid (IL) to create CA-[BMIM]Cl-GO nanofibers by electrospinning for the first time. Moreover, we developed a new route to convert CA-[BMIM]Cl-GO nanofibers to reduced GO nanofibers using hydrazine vapor under ambient conditions to enhance the conductivity of the hybrid nanofibers. The graphene sheets were shown to be uniformly *

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1-butyl-3-methylimidazolium chloride assisted electrospinning of SAN/MWCNTs conductive reinforced composite membranes

Cited by 9 publications

References 24 publications

CNT-Intertwined Polymer Electrode toward the Practical Application of Wearable Devices

CNT-Intertwined Polymer Electrode toward the Practical Application of Wearable Devices

Conductive Polymer Composites from Renewable Resources: An Overview of Preparation, Properties, and Applications

A method for producing conductive graphene biopolymer nanofibrous fabrics by exploitation of an ionic liquid dispersant in electrospinning

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