Polyacrylonitrile/electroconductive TiO2 nanoparticles composite fibers via wet-spinning

Gao, Qiang; Ma, Hui; Bao, Wei; Gao, Chunxia; Ge, Mingqiao

doi:10.1007/s12221-016-6314-1

Cited by 13 publications

(4 citation statements)

References 20 publications

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“…The inclusion of various fillers such as clay, cellulose nanocrystal, carbon allotropes, and other nanoparticles (MoS 2 , TiO 2 , Fe 3 O 4 ) into the structure of fibers has been widely conducted to modify PAN fibers [28][29][30][31][32][33][34][35][36][37][38]. For instance, PAN composite fibers containing graphene oxide (GO) have gained significant interest owing to their large surface area and the effect of the functional groups of filler, which result in appropriate interactions with polymer [39,40].…”

Section: Introductionmentioning

confidence: 99%

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Samimi-Sohrforozani

Azimi

Abolhasani

et al. 2021

Electronic Materials

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Polyacrylonitrile (PAN) fibers with unique properties are becoming increasingly important as precursors for the fabrication of carbon fibers. Here, we suggest the preparation of porous PAN composite fibers to increase the homogeneity and thermal stability of the fibers. Based on the thermodynamics of polymer solutions, the ternary phase diagram of the PAN/H2O/Dimethylformamide (DMF) system has been modeled to introduce porosity in the fibers. Adding a conscious amount of water (4.1 wt.%) as a non-solvent to the PAN solution containing 1 wt.% of graphene oxide (GO), followed by wet spinning, has led to the preparation of porous composite fibers with high thermal stability and unique physicochemical properties. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results elucidate that PAN/GO/H2O porous composite fibers have a higher thermal decomposition temperature, increased residual weight, reduced heat release rate, and higher crystallinity in comparison with the pristine PAN fibers, being a promising precursor for the development of high-performance carbon fibers. The results show a promising application window of the synthesized PAN fibers in electronic and electrochemical devices.

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Section: Introductionmentioning

confidence: 99%

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Samimi-Sohrforozani

Azimi

Abolhasani

et al. 2021

Electronic Materials

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“…Our previous studies showed that the conductivity was enhanced with the increase of coating ratio (Sn/Ti) when TiO 2 nanoparticles were encapsulated by ATO [22]. In this study, we continue to optimize the doping ratio to find the lowest surface resistivity as shown in Table 3.…”

Section: A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3mentioning

confidence: 87%

Facile Synthesis of Electroconductive AZO@TiO₂Whiskers and Their Application in Textiles

Gao

et al. 2016

Journal of Nanomaterials

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The electroconductive AZO@TiO2whiskers have been successfully preparedviacoating Al doped ZnO onto TiO2whisker. The orthogonal tests were employed to optimize the synthetic conditions. The crystallographic structure and the morphology of the AZO@TiO2whiskers and the polypropylene nonwoven fabrics modified with AZO@TiO2whiskers were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, scanning electron microscope, four-probe meter, and electrometer. The results showed the AZO@TiO2whiskers exhibited good electroconductive performance. Moreover, the polypropylene nonwoven fabrics modified with AZO@TiO2whiskers revealed excellent antistatic performance indicating wide application of AZO@TiO2whiskers in the antistatic textiles.

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“…also added CNT to PAN for preparing composite fibers via the sea island bicomponent spinning, and produced carbon fiber though carbonizing. Gao et al . synthesized antimony‐doped tin oxide coated TiO2 nanoparticles and prepared TiO2/PAN composite fibers with a low conductive percolation threshold of TiO2 content.…”

Section: Introductionmentioning

confidence: 99%

Wet‐spinning assembly of continuous and macroscopic graphene oxide/polyacrylonitrile reinforced composite fibers with enhanced mechanical properties and thermal stability

Zhao

Tian

et al. 2018

J of Applied Polymer Sci

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Polyacrylonitrile (PAN) composite microfibers with different contents of graphene oxide (GO) were fabricated via wetspinning route in this work. Based on nonsolvent-induced phase separation theory, N,N-dimethyl formamide/water mixture system was employed as coagulation bath, nonsolvent (water) diffused into PAN spinning solution and led to a quick PAN fiber solidification. Nematic liquid crystal state of GO dispersions and GO/PAN spinning solutions were determined via polarized optical microscopy images, and the morphology and structure of the composite fibers were characterized via scanning electron microscope, Transmission electron microscopy, Fourier transform infrared spectra, and X-ray diffraction. 1 wt % GO/PAN composite fibers exhibited outstanding mechanical properties, 40% enhancement in tensile strength and 34% enhancement in Young's modulus compared with pure PAN fiber. The results of dynamic mechanical analysis indicated that the composite fiber with 1 wt % GO performed the best thermal mechanical property with 5.5 GPa and 0.139 in storage modulus and loss tangent, respectively. In addition, thermogravimetric analysis showed that thermal stability of the composite fibers enhanced with the increasing GO contents. GO/PAN composite fibers can be as the candidate of carbon fiber precursor, high performance fibers, and textiles applications.

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Polyacrylonitrile/electroconductive TiO2 nanoparticles composite fibers via wet-spinning

Cited by 13 publications

References 20 publications

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Facile Synthesis of Electroconductive AZO@TiO₂Whiskers and Their Application in Textiles

Wet‐spinning assembly of continuous and macroscopic graphene oxide/polyacrylonitrile reinforced composite fibers with enhanced mechanical properties and thermal stability

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Polyacrylonitrile/electroconductive TiO2 nanoparticles composite fibers via wet-spinning

Cited by 13 publications

References 20 publications

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Development of Porous Polyacrylonitrile Composite Fibers: New Precursor Fibers with High Thermal Stability

Facile Synthesis of Electroconductive AZO@TiO2Whiskers and Their Application in Textiles

Wet‐spinning assembly of continuous and macroscopic graphene oxide/polyacrylonitrile reinforced composite fibers with enhanced mechanical properties and thermal stability

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Facile Synthesis of Electroconductive AZO@TiO₂Whiskers and Their Application in Textiles