This study reports the synthesis and characterization of reduced polyaniline decorated reduced graphene oxide/polyimide ([email protected]/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 [email protected] nanosheets in the PI matrix, leading to higher dielectric constant (ε) and lower dielectric loss (tanδ) of the [email protected]/PI nanocomposite films than those of the RGO/PI nanocomposite films. The highest dielectric constant (25.84) was observed in the 20 wt% [email protected]/PI nanocomposite film (the mass fractions of RGO was 3.44%) with a low dielectric loss of 0.11 at 1 kHz. Furthermore, the 5 wt% weight loss temperature of the 20 wt% [email protected]/PI nanocomposite films was 480 °C, indicating the nanocomposite films are good candidates for dielectric materials under extreme temperature.

这项研究报告了还原的聚苯胺修饰的还原的氧化石墨烯/聚酰亚胺（[电子邮件保护] / PI）纳米复合薄膜的合成和表征，该薄膜具有增强的介电性能和热稳定性。R-PANI在RGO表面装饰的空间效应不仅阻止RGO聚集，而且还改善了[受电子邮件保护的]纳米片在PI基质中的分散性，从而导致更高的介电常数（ε）和更低的介电损耗（tanδ） ）（比受电子邮件保护的）/ PI纳米复合材料膜高）。在20 wt％[受电子邮件保护] / PI纳米复合膜（RGO的质量分数为3.44％）中观察到最高介电常数（25.84），在1 kHz时介电损耗低至0.11。此外，