Conductive mechanism of carbon black/polyimide composite films
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Qianqian Zhang
,
Yu Yang
Abstract
During the fabrication of black polyimide composite films, it is common to introduce carbon black (CB) into this composite system. The introduction of CB significantly decreases the resistivity of the films and consequently has a great effect on the inherent insulation property of polyimide. Here, the exploration of the conductive mechanism of CB/polyimide composite films is aimed to explain the change on resistivity fundamentally. In this study, two kinds of representative CBs were chosen to prepare CB/polyimide composite films. The rudiment of the conductive mechanism was built up based on the resistivity curves, and scanning electron microscopy (SEM), tensile, thermal gravimetric analysis, Fourier transform infrared (FT-IR) spectroscopy, UV, Raman and X-ray diffraction (XRD) were conducted to confirm it. The experimental results further verified the mechanism and gave us a chance to propose an integrated conductive mechanism including three sections (tunneling effect mechanism, conductive network mechanism and doping mechanism) for CB/polyimide composite films. As the conductive mechanism has been understood, it paves the way for optimization of the fabrication of conductive black polyimide films and insulating black polyimide films, even other colorful polyimide composite films.
©2018 Walter de Gruyter GmbH, Berlin/Boston
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- Frontmatter
- Original articles
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Artikel in diesem Heft
- Frontmatter
- Original articles
- Mechanical and rheological properties of polystyrene-block-polybutadiene-block-polystyrene copolymer reinforced with carbon nanotubes: effect of processing conditions
- Effects of surface modification of halloysite nanotubes on the morphology and the thermal and rheological properties of polypropylene/halloysite composites
- Influence of the polyacrylonitrile proportion on the fabricated UF blend membranes’ performance for humic acid removal
- Effects of partial replacement of carbon black with nanocrystalline cellulose on properties of natural rubber nanocomposites
- Conductive mechanism of carbon black/polyimide composite films
- Effects of fiber-surface modification on the properties of bamboo flour/polypropylene composites and their interfacial compatibility
- Highly electrically conducting poly(L-lactic acid)/graphite composites prepared via in situ expansion and subsequent reduction of graphite
- Preparation and performance optimization of PVDF anti-fouling membrane modified by chitin
- Fabrication of bilayer resin-bonded fixed abrasive wires using the pultrusion process
- Guidelines for balancing the flow in extrusion dies: the influence of the material rheology
