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Microstructure and electrical properties in three-component (Al2O3−TiO2)/polyimide nanocomposite films

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Abstract

Polyimide (PI)-matrix composite films containing inorganic nanoparticles (nano-Al2O3 and nano-TiO2 have been fabricated. A proposed model is used to explain different structures of the (Al2O3-TiO2)/PI (ATP) films synthesized by employing in situ polymerization. Dependences of dielectric permittivities of the ATP films on frequency and temperature were studied. Results show the breakdown strength of the films decreases with prolonging the corona aging time. The incorporation of the nano-Al2O3 and nano-TiO2 particles significantly improves the corona resistance of the films. The corona aging also influences the infrared absorbance, the glass transition temperature (Tg), and loss factor (tanδ) of the ATP films.

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Authors and Affiliations

  1. State Key Laboratory of Chemical Resource Engineering, Ministry of Education, Key Laboratory for Nanomaterials, Beijing University of Chemical Technology, Beijing, 100029, People’s Republic of China

    Jim-Wei Zha, Ben-Hui Fan & Zhi-Min Dang

  2. Shanghai Key Laboratory of Electric Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China

    Jim-Wei Zha

  3. School of Electronics and Computer Science, University of Southampton, Southampton, S017 1BJ, UK

    Jim-Wei Zha & George Chen

  4. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, 710049, People’s Republic of China

    Sheng-Tao Li

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  1. Jim-Wei Zha
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  2. Ben-Hui Fan
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  3. Zhi-Min Dang
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  4. Sheng-Tao Li
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  5. George Chen
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Correspondence to Zhi-Min Dang.

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Zha, JW., Fan, BH., Dang, ZM. et al. Microstructure and electrical properties in three-component (Al2O3−TiO2)/polyimide nanocomposite films. Journal of Materials Research 25, 2384–2391 (2010). https://doi.org/10.1557/jmr.2010.0306

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  • DOI: https://doi.org/10.1557/jmr.2010.0306

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