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Polymers and Polymer Composites

FABRICATION AND CHARACTERIZATION OF POLYIMIDE/ALN NANOCOMPOSITE FILMS

February 1, 2014 By: Chen Minghua; Yin Jinghua; Song Dajun; Liu Xiaoxu; Feng Yu; Su Bo Research article

Title: FABRICATION AND CHARACTERIZATION OF POLYIMIDE/ALN NANOCOMPOSITE FILMS
Page Range: p.221-226
Author(s): Chen Minghua; Yin Jinghua; Song Dajun; Liu Xiaoxu; Feng Yu; Su Bo
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 22
Issue No: No. 2

Abstract
Polyimide/AlN (PI/AlN) nanocomposite films were prepared by in-situ polymerisation method with different doping concentrations and their microstructures were investigated by small angle X-ray scattering (SAXS) technique. Analysed SAXS results indicate the average diameters of the nanoparticles in hybrid films distribute from 55 nm to 60 nm, which are consistent with the observation from Scanning Electron Microscope (SEM). The Fourier Transform Infrared Spectroscopy (FTIR) results confirm the formation of AlN particles in the PI matrix. The effects of content on the dielectric constant, loss tangent, breakdown strength and corona ageing were studied. The corona resistant time of PI/AlN with 20 wt.% doping concentration is 58.5 hours, which is twenty times more than that of pure PI. The results show that the corona resistance of PI/AlN has been improved significantly. 14 Refs.

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