Enhanced mechanical, thermal and dielectric properties of polyimide nanocomposites containing SiCp (SiCw) nanofillers for high energy-storage applications

Zhang, Zhao Xin; Yang, Shang Ke; Shen, Jun Wei; Yang, Jia; Bian, Jun; Zhang, Ai Ping; Lin, Hai; Chen, Dai Qiang

doi:10.1007/s10965-022-03297-8

Cited by 1 publication

(1 citation statement)

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“…Therefore, effective approaches including chemical functionalization of MWCNT 39 and hybridization of fillers 40 have been conducted and verified the effectiveness of these attempts in solving these problems. In addition, to overcome the agglomeration of high aspect ratio MWCNT, the influence of SiC 41 and functionalized barium titanate technology 42 on the performance of PI dielectric nanocomposites was studied, and a multilayer structure of PI dielectric nanocomposites was designed 43 . The design, synthesis, and principle of the materials were preliminarily reported.…”

Section: Introductionmentioning

confidence: 99%

Polyimide nanocomposites for high‐temperature capacitive energy storage applications by incorporating functional graphene oxide nanosheets: Design, preparation, and mechanism

Ni,

Zhang,

Zhang

et al. 2024

J of Applied Polymer Sci

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Herein, graphene oxide (GO) and its derivative, reduced GO (rGO) and p‐phenylenediamine (PPD) functionalized GO (GO‐g‐PPD) were first synthesized and selected as dielectric fillers, and then GO/polyimide (PI), rGO/PI, and GO‐g‐PPD/PI dielectric nanocomposites were fabricated through in situ polymerization‐composition strategy. Fourier transform infrared, Ram, and x‐ray diffraction analysis confirmed the success synthesis of rGO and GO‐g‐PPD dielectric fillers. The mechanical properties showed that GO‐g‐PPD/PI nanocomposites exhibited the highest tensile strength and elasticity modulus. TGA analysis revealed that the enhancement of thermal stability by addition of dielectric fillers. The dielectric constant of 2.5 wt.% GO‐g‐PPD/PI nanocomposites reached 25.05, which was 8.55 times that of pure PI (2.93). Energy storage performance tests showed that the energy storage density of GO‐g‐PPD/PI containing 2 wt.% filler reached 0.77 J/cm3, which was 71% higher than pure PI. These findings underscore the potential of GO derivative as a cost‐effective reinforcement for PI dielectric nanocomposites for high‐temperature capacitive energy storage applications.

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Section: Introductionmentioning

confidence: 99%