期刊
POLYMERS
卷 10, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/polym10121378
关键词
nanoparticles; nanocomposites; in-situ polymerization; dielectric properties
资金
- National Natural Science Foundation of China [51773028, 51603029]
- China Postdoctoral Science Foundation [2017M623001]
- National Postdoctoral Program for Innovative Talents [BX201700044]
The core-shell structured polyaniline-functionalized-BaTiO3 (BT@PANI) nanoparticles with controllable shell layer thicknesses are developed via in-situ aniline polymerization technology and characterized in detail. The results prove that the PANI shell layer with the adjustable and controllable thicknesses of 3-10 nm are completely stabilized on the surface of the BaTiO3 core. In addition, the BT@PANI nanoparticles are regarded as the hybrid nanofillers to prepare PEN/BT@PANI nanocomposite films with a PEN matrix. The research results indicate that the surface functionalized nanoparticles facilitate the compatibility and dispersibility of them in the PEN matrix, which improves the properties of the PEN/BT@PANI nanocomposites. Specifically, the PEN/BT@PANI nanocomposites exhibit thermal stability, excellent permittivity-frequency, and dielectric properties-temperature stability. Most importantly, the energy density of nanocomposites is maintained at over 70% at 180 degrees C compared with that at 25 degrees C. All these results reveal that a new way to prepare the high-performance PEN-based nanocomposites is established to fabricate an energy storage component in a high temperature environment.
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