Synthesis and characterization of corona-resistant nanocluster-trapped polyimide/silica composites

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7 Scopus citations

Abstract

A new class of corona-resistant films made of nanocluster-trapped polyimide/silica composites that were synthesized by the sol-gel reaction was obtained by the hydrolysis and poly-condensation of tetraethoxysilane (TEOS) or methyl-triethoxysilane (MTEOS) in the solution of polyamic acid(PAA) dissolved in N,N-dimethylacetamide (DMAc), followed by heating. The chemical structure and the surface morphology of the composites films were characterized by Atomic Force Microscope (AFM) and Foruier Transform Infrared Spectroscope (FTIR). The corona-resistant capacity of the composites films was tested under high voltage using rod-plate electrode. The compatibility between the organic phase polyimide (PI) and inorganic phase silica (SiO2) had great effects on the properties of PI/SiO2 films, especially on their corona-resistant capacity. And this capacity of the Nanocluster-trapped PI/SiO2 films increased with increased content of silica.

Original languageEnglish
Pages753-756
Number of pages4
StatePublished - 2003
Externally publishedYes
EventProceedings of the 7th International Conference on Properties and Applications of Dielectric Materials - Nagoya, Japan
Duration: 1 Jun 20035 Jun 2003

Conference

ConferenceProceedings of the 7th International Conference on Properties and Applications of Dielectric Materials
Country/TerritoryJapan
CityNagoya
Period1/06/035/06/03

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