Progress in Polyaniline Composites with Transition Metal Oxides

Ćirić‐Marjanović, Gordana

doi:10.1002/9781119137160.ch2

Cited by 4 publications

(2 citation statements)

References 235 publications

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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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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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“…Surface functionalized with silane blends has been considered in recent decades, and it is understood that silane alteration is assumed to improve filler dispersing in the matrix; this behaviour is responsible in achieving in the properties due to interactions between filler and matrix. The clay modifiers used as fire retardant materials with good mechanical properties which reduce the 'Tg' of polymer-clay NCs as a result of weaker organoclay-polymer interactions [48][49][50][51][52][53][54][55][56]. The inclusion of the nano-clay to extend the stiffness of pristine PC and awesome outcomes in tribological properties were also obtained [57][58][59][60][61][62][63][64][65][66][67].…”

Section: Polycarbonate (Pc)/clay Ncs (Pccncs)mentioning

confidence: 99%

Nano Clay Reinforcement of Thermoplastics for Engineering Applications

Santhosh¹

2022

Materials Research Foundations

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Thermoplastics are widely used advanced materials in various fields as an essential product. The increasing interest in replacing thermosets due to their advanced properties such as high toughness, manufacturing time and processing possibilities. Thermoplastics exhibit poor mechanical properties in several engineering applications; hence the use of nano clay minerals enhances the mechanical property of thermoplastics to be used in many engineering applications. The reinforcing effect of clay minerals (nano-clay) in various thermoplastics such as polycarbonate (PC), polypropylene (PP), Acrylonitrile butadiene styrene (ABS) and high-density polyethylene (HDPE), which are popularly known as commodity plastics and are widely used in fabricating automotive parts and household articles. The frequently used clay minerals such as montmorillonite, bentonite, hectorite, halloysites and kaolinite as filler material in thermoplastics make them suitable in many engineering applications with enhanced mechanical properties. The integration of clay minerals into a polymer matrix allows both properties from clay minerals and polymer to be combined so as to exploit entirely new functionalities. In recent years, owing to a number of practical applications in the field of opto-electronics, a great deal of interest has been paid to study optical, dielectric and conduction behaviours of various polymeric materials. This chapter is designed to be a source for nano-clay reinforced thermoplastic nano-composite research including synthesis, characterization, structure/property relationship and applications considering optical and electrical conductivity which are discussed.

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