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The polymer/inorganic nanometer composite dielectric film with good mechanical, electrics and thermal properties, has become a highlight in the field of materials research. MMT and TiO2 are doped into the polyimide to study the influence of the mass ratio of MMT and TiO2 on the structure of polyimide matrix nanocomposite materials. In this paper different components of MMT are doped into the PI/(TiO...
Polyimide (PI)/Titanium dioxide (TiO2) nanocomposite films were prepared by in-situ polymerization method and sandwich structures (PI-TiO2/PI/PI-TiO2) were obtained. The microstructures, as well as the electrical and mechanical properties of hybrid films were characterized and analyzed. The results indicate that the TiO2 nanoparticles were homogeneously dispersed in the hybrid films. Among all the...
Polyimide (PI)-matrix composite films containing titanium dioxide (TiO2) nanoparticles and layered montmorillonite (MMT) have been fabricated by employing in-situ polymerization and their microstructure has been investigated by synchrotron radiation small angle X-ray scattering, wide-angle X-ray diffraction and scanning electron microscopy. The effects of mixture doping concentration on volume resistivity,...
Recent developments in polymeric dielectric nanocomposites have shown that these novel materials can improve design of high voltage components and systems. MMT(Montmorillonite)has an excellent corona performance and PI/MMT nanocomposite films can be prepared by in-situ polymerization process in this paper. Dielectric properties and trap level characteristic were measured by broadband dielectric spectrometer,...
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