Paper Title:
Preparation and Characterization of Polyimide/BaTiO3 Nanocomposite Films with Lower Infrared Emissivity
  Abstract

The silicon-containing polyimide/BaTiO3 nanocomposite films were prepared by mixing the silicon-containing poly(amic acid) based on bis(3,4-dicarboxyphenyl)dimethylsilane dianhydride and 4,4'-Oxydianiline with BaTiO3 nanoparticles, followed by thermal imidization. Structure and properties of the nanocomposite films were measured with FTIR, SEM, XPS and DMTA. The results indicated that the interfacial interaction between BaTiO3 nanoparticles and the silicon-containing polyimide was conspicuous, and that BaTiO3 nanoparticles appeared to be better dispersed in the polyimide matrix at a higher BaTiO3 concentration than at a lower one. The siliconcontaining polyimide/BaTiO3 nanocomposite films exhibited higher storage modulus and glass transition temperature than the original polyimide. It was also found that the infrared emissivity of the nanocomposite films varied with the content of BaTiO3 in the nanocomposites, and the nanocomposite films exhibited lower infrared emissivity value than the corresponding polyimide by measure of infrared emissivity.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1749-1752
DOI
10.4028/www.scientific.net/KEM.326-328.1749
Citation
B. P. Lin, H. J. Liu, Y. M. Sun, C. W. Yuan, "Preparation and Characterization of Polyimide/BaTiO3 Nanocomposite Films with Lower Infrared Emissivity", Key Engineering Materials, Vols. 326-328, pp. 1749-1752, 2006
Online since
December 2006
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$32.00
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