Author:
Xia Yunqing,Lin Guo,Liu Chenchen,Bai Zhongxiang,Liu Shuning,Liu Xiaobo
Abstract
Abstract
In this study, a facile co-modification of dopamine (DA) and methylphenyldimethoxysilane (MPDS) was utilized to functionalize barium titanate (BaTiO3) nanoparticles with organic functional film. With the organic film coated on surface of BaTiO3, the compatibility between BaTiO3 and PEN matrix was greatly enhanced, which led to the promotion in thermal and dielectric properties. Results indicated that the glass transition temperature (Tg) of BaTiO3@(MPDS+PDA)/PEN composite showed increment from 171.9°C to 181.2°C. Besides, the dielectric constant of PEN composite containing 20 wt.% of BaTiO3@(MPDS+PDA) improved to 9.32 with a relative low dielectric loss compared to BaTiO3/PEN under the same additive ratio.
Subject
General Physics and Astronomy
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