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Preparation and characterization of polyimide/silica‐barium titanate nanocomposites
Author(s) -
Gao Lingxiang,
Liu Qiuping,
Gao Ziwei,
Lin Yang
Publication year - 2008
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20372
Subject(s) - materials science , barium titanate , polyimide , nanocomposite , polymer , composite material , composite number , dispersion (optics) , polymerization , titanate , chemical engineering , layer (electronics) , ceramic , physics , optics , engineering
The silica‐barium titanate (SiO 2 ‐BaTiO 3 ) nanocomposites coated with polyimide had been synthesized successfully by a dispersion polymerization method. The conformation, structure, and size of SiO 2 ‐BaTiO 3 nanocomposites coated with polyimide were investigated by using FT‐IR, EDAX, XRD,TEM, SEM, and TGA. The results indicate that there is a thin layer polymer of SiO 2 ‐BaTiO 3 nanocomposites surface, in which the polymer thickness is about 10 nm and the size of them are about 50–60 nm, and the particles are well‐dispersed with even particle size. In addition, the crystal structure of BaTiO 3 is stable in preparing composite process and the chemical bond is formed between the inorganic phase and the polymer matrix. POLYM. COMPOS., 2008. © 2008 Society of Plastics Engineers