Nano Archive

Preparation and Characterization of Silica/Polyamide-imide Nanocomposite Thin Films

Ma, Xiaokun and Lee, Nam-Hee and Oh, Hyo-Jin and Hwang, Jong-Sun and Kim, Sun-Jae (2010) Preparation and Characterization of Silica/Polyamide-imide Nanocomposite Thin Films. Nanoscale Research Letters, 5 (11). pp. 1846-1851.

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The functional silica/polyamide-imide com-posite films were prepared via simple ultrasonic blending, after the silica nanoparticles were modified by cationic surfactant—cetyltrimethyl ammonium bromide (CTAB). The composite films were characterized by scanning elec-tron microscope (SEM), thermo gravimetric analysis (TGA) and thermomechanical analysis (TMA). CTAB-modified silica nanoparticles were well dispersed in the polyamide-imide matrix, and the amount of silica nano-particles to PAI was investigated to be from 2 to 10 wt%. Especially, the coefficients of thermal expansion (CET) continuously decreased with the amount of silica particles increasing. The high thermal stability and low coefficient of thermal expansion showed that the nanocomposite films can be widely used in the enamel wire industry.

Item Type:Article
Subjects:Material Science > Nanostructured materials
ID Code:9822
Deposited By:CSMNT
Deposited On:06 Jun 2011 08:05
Last Modified:06 Jun 2011 08:05

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