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- W2380135241 abstract "Y-Al_2O_3 sol with awormhole-likepore structure was prepared from aluminum alkoxide precursor by a hydrothermal process andγ-Al_2O_3/ polyimide(PI) nanocomposite films with a network structure were synthesized by an in situ synthesis process. The sol was characterized by the transmission electron microscope,X-ray diffraction and Fourier transform infrared spectroscopy. The morphologies of the nanocomposite films were characterized by the scanning electron microscope,and the corona resistance time of the nanocomposite films was measured.The results show that theγ-Al_2O_3 sol is a porous molecular sieve with awormhole-likepore structure and there are many hydrogen bonds in the chemical structure ofγ-Al_2O_3 particles.A continuous network of inorganic phase is clearly observed in the nanocomposite films when theγ-Al_2O_3 mass fraction(the same below) exceeds 12%.With increasing doping content,the corona resistance time of the composite films increases obviously.The corona resistance time of the film with 25% doping concentration is 25.4 times longer than that of the pure PI film.Based on the results,the effects of the morphology and chemical structure of the sol on the morphology and corona resistance time of the composite films were also analyzed." @default.
- W2380135241 created "2016-06-24" @default.
- W2380135241 creator A5020610152 @default.
- W2380135241 date "2009-01-01" @default.
- W2380135241 modified "2023-09-23" @default.
- W2380135241 title "PREPARATION AND CHARACTERIZATION OFγ-Al_2O_3/POLYIMIDE NANOCOMPOSITE FILMS" @default.
- W2380135241 hasPublicationYear "2009" @default.
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