Synthesis of conducting PANi/SiO2 nanocomposites and their effect on electrical and mechanical properties of antistatic waterborne epoxy coating

Nguyen, Anh; Nguyen, Thuy Duong; Thái, Trần Thành; Trinh, Anh Truc; Pham, Gia Vu; Hoàng, Thái; Tran, Dai Lam; To, Thi Xuan Hang; Nguyen, Duyen Thi Cam

doi:10.1007/s11998-019-00279-2

Cited by 12 publications

(4 citation statements)

References 33 publications

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“…As can be seen, the zeta potential of pure PANI and UiO-66 is measured as 9.24 and 2.99 mV, respectively, which is close to values reported by other researchers. 43,44 It can be found from Table 1 that, in general, as the amount of UiO-66 increases, the zeta potential of the nanohybrid elevates. UiO-66, in its ideal structure, contains the [Zr 6 O 4 (OH) 4 ] +12 ion cluster as secondary building units (SBU) bonded to 12 1,4-benzenedicarboxylate (BDC) link-ers�as ligand�with Zr−O bonds.…”

Section: Resultsmentioning

confidence: 98%

Facile Synthesis of Polyaniline@UiO-66 Nanohybrids for Efficient and Rapid Adsorption of Methyl Orange from Aqueous Media

Mirzaei

Jafarpour

Shojaei

et al. 2022

Ind. Eng. Chem. Res.

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A series of UiO-66/polyaniline (UiO-66/PANI) nanohybrids with various UiO-66 to aniline weight ratios ranging from 0.01 to 0.1 was synthesized using an in situ polymerization technique. The adsorption behavior of the neat PANI nanofiber network and the synthesized nanohybrids was examined toward anionic methyl orange (MO) dye from aqueous media. It was realized that the maximum adsorption capacity of PANI (229 mg/g) increases steadily by increasing the UiO-66 content in the nanohybrid up to 7 wt % at 426 mg/g, and then, it approximately levels off at 432 mg/g for the nanohybrid sample containing 10 wt % UiO-66, that is, UP10. Based on a thorough characterization, it was shown that UiO-66 is completely encapsulated by PANI nanofibers. Further adsorption examinations on the nanohybrids exhibited that the Langmuir isotherm model and pseudo-second-order kinetics model best describe the adsorption performance of all the prepared adsorbents during the adsorption of MO. Meanwhile, thermodynamic investigations demonstrated that the adsorption of MO onto UP10 is endothermic and spontaneous, and entropy controls the adsorption process. UP10 exhibited high selectivity indices of 100, 20, and 34 for the adsorption of MO as an anionic dye over crystal violet (CV), malachite green (MG), and methylene blue (MB), respectively, as cationic dyes.

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Section: Resultsmentioning

confidence: 98%

Facile Synthesis of Polyaniline@UiO-66 Nanohybrids for Efficient and Rapid Adsorption of Methyl Orange from Aqueous Media

Mirzaei

Jafarpour

Shojaei

et al. 2022

Ind. Eng. Chem. Res.

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“…Numerous studies have shared findings that are similar 23–26 . Due to an improvement in the extension of the microcrystalline domains of doped PANI molecules, the intensity of the corresponding PANI‐SiO 2 peaks likewise rises with the increase in the concentration of doped SiO 2 nanoparticles 27–30 …”

Section: Resultsmentioning

confidence: 76%

“…[23][24][25][26] Due to an improvement in the extension of the microcrystalline domains of doped PANI molecules, the intensity of the corresponding PANI-SiO 2 peaks likewise rises with the increase in the concentration of doped SiO 2 nanoparticles. [27][28][29][30] In Figure 2 Due to the methylene group's C-O and C-H stretching, the peaks at 1100, 1240, 1290, 1360, and 1340 cm À1 are constrained. 11,20,42,43 The key functional groups in PNAI and PEG have been preserved in the FTIR spectra of PANI:PEG polyblend, which exhibits nearly identical FTIR characteristic peaks as pure PANI and pure PEG across the whole wavelength range.…”

Section: Resultsmentioning

confidence: 99%

Dielectric properties of PANI‐PEG nanocomposites filled with silica media for antistatic applications

Ahmed,

Ayoub,

Ward

2024

Polymers for Advanced Techs

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The dielectric investigations of porous synthetic silica gel modified with polyaniline (PANI) and polyethylene glycol (PEG) polyblend at various concentrations are demonstrated in this paper. By using the chemical oxidative process to embed polyaniline (PANI) and polyethylene glycol (PEG) into a silica matrix, conducting gel nanocomposites were synthesized. For various dopant concentrations, the dielectric permittivity (ε′), D.C. conductivity (σdc), loss tangent (tanδ) and dielectric loss (ε″) were investigated. The samples were characterized using differential thermal analysis/thermogravimetric analysis, Fourier transform infrared spectroscopy and high‐resolution transmission electron microscopy. Depending on the co‐blend content, PANI‐PEG modified silica structures produce nanoparticles ranging in size from 9.9 to 48.1 nm. The variation of DC conductivity (σdc) with PANI/PEG content shows Maxwell‐Wagner Sillars (MWS) effect confirming the role of the conjugation and the structural order.

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“…However, the lower level of conductivity of PANI compared with metallic conductors is a disadvantage that can be overcome using nanofillers. Until now, various nanofillers, such as multiwalled carbon nanotube (MWCNT), TiO 2 , SiO 2 , Cu, ZnO, or ZrO 2 , have been used with PANI to improve their conductivity and applicability 58–60 . Table 1 shows the electrical conductivity values of various composites containing BN or PANI.…”

Section: Resultsmentioning

confidence: 99%

Design of dual‐conductive polyacrylonitrile‐based composite nanofiber: Synergistic effect of copper nanoparticles decorated‐boron nitride and polyaniline

Orhun,

Doğan,

Erdem

et al. 2023

Polymer Composites

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Conductive composite nanofibers are promising materials, especially wearable strain sensors, due to their lightweight, breathability, flexibility, and skin affinity. Here, we propose a dual‐conductive network by the sequential decoration of amin‐modified boron nitride nanosheets (BN), copper nanoparticles (Cu), and polyaniline (PANI) into the elastic thermoplastic polyacrylonitrile (PAN) nanofiber. The Cu nanoparticles/BN‐enwrapped PANI nanocomposite was synthesized using successive environmentally friendly reduction and chemical oxidation polymerization. First, Cu (II) ions were immobilized on modified BN and reduced with L‐ascorbic acid (BN@Cu), followed by a chemical oxidation polymerization of aniline using ammonium persulfate as an initiator (BN@Cu/PANI). The XRD (X‐ray diffraction), FTIR (Fourier Transform Infrared Spectroscopy), SEM (Scanning Electron Microscopy), and TEM/EDXS (Transmission Electron Microscopy/Energy Dispersive X‐ray Spectroscopy) analysis confirmed the coexistence of the BN@Cu/PANI phase and composition. The DC electrical conductivity of BN@Cu/PANI nanocomposite (0.567 S/cm) was quietly higher than PANI (0.167 S/cm) and BN@Cu (0.077 S/cm). The thermal conductivity of BN@Cu and BN@Cu/PANI was 0.626 and 0.444 W/mK, respectively. The BN@Cu/PANI loaded‐PAN composite nanofibers were successfully produced by electrospinning. SEM studies confirmed that the composite nanofibers have uniform fiber structure and suitable BN@Cu/PANI dispersion/distribution within the PAN. BN@Cu/PANI‐reinforced PAN nanofibers showed a 2‐fold decrease in the specific heat capacity and a 50‐fold increase in electrical conductivity of the nanofibers at 10 wt%BN@Cu/PANI loading. This work offers dual‐conductive polymer‐based composites, which can be used in thermal management applications in microelectronics devices.Highlights The dual‐conductive nanocomposite, BN@Cu/PANI, was prepared a simple, low‐cost method. BN@Cu/PANI, core/shell nanocomposite, was easily produced this way for the first time. BN@Cu nanoparticles increased the polymerization rate of PANI. The thermal and electrical conductivity of BN@Cu/PANI was 0.444 W/mK and 0.567 S/cm. Electrical conductivity of BN@Cu/PANI‐PAN increased 50‐fold increase at 10 wt%BN@Cu/PANI.

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Synthesis of conducting PANi/SiO2 nanocomposites and their effect on electrical and mechanical properties of antistatic waterborne epoxy coating

Cited by 12 publications

References 33 publications

Facile Synthesis of Polyaniline@UiO-66 Nanohybrids for Efficient and Rapid Adsorption of Methyl Orange from Aqueous Media

Facile Synthesis of Polyaniline@UiO-66 Nanohybrids for Efficient and Rapid Adsorption of Methyl Orange from Aqueous Media

Dielectric properties of PANI‐PEG nanocomposites filled with silica media for antistatic applications

Design of dual‐conductive polyacrylonitrile‐based composite nanofiber: Synergistic effect of copper nanoparticles decorated‐boron nitride and polyaniline

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