Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7889830 | Composites Part A: Applied Science and Manufacturing | 2018 | 27 Pages |
Abstract
This study reports the synthesis and characterization of reduced polyaniline decorated reduced graphene oxide/polyimide (RGO@R-PANI/PI) nanocomposite films with enhanced dielectric properties and thermostability. The steric effects of R-PANI decorated on the surface of RGO not only prevented the aggregation of RGO but also improved the dispersion of RGO@R-PANI nanosheets in the PI matrix, leading to higher dielectric constant (ε) and lower dielectric loss (tanδ) of the RGO@R-PANI/PI nanocomposite films than those of the RGO/PI nanocomposite films. The highest dielectric constant (25.84) was observed in the 20â¯wt% RGO@R-PANI/PI nanocomposite film (the mass fractions of RGO was 3.44%) with a low dielectric loss of 0.11 at 1â¯kHz. Furthermore, the 5â¯wt% weight loss temperature of the 20â¯wt% RGO@R-PANI/PI nanocomposite films was 480â¯Â°C, indicating the nanocomposite films are good candidates for dielectric materials under extreme temperature.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hao Feng, Xinliang Fang, Xiaoyun Liu, Qibing Pei, Zhong-Kai Cui, Shifeng Deng, Jinlou Gu, Qixin Zhuang,