Improved electro-actuated property of polydimethylsiloxane-based dielectric elastomer by designing a Bi-network structure

Wang, Huiqin; Zhao, Hang; Zhang, Chuying; Zhang, Na; Gao, Yanfei; Wu, Yujie; Miao, Zhiying; Bai, Jinbo

doi:10.1016/j.polymer.2023.126600

Cited by 2 publications

(1 citation statement)

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“…PDMS is a non-polar rubber [ 31 ]. Due to its low energy density [ 32 , 33 ], the driving strain of PDMS is usually very small. By adding high dielectric fillers and designing the internal structure of the material to prepare a composite dielectric elastomer, the driving strain can be improved.…”

Section: Introductionmentioning

confidence: 99%

Preparation of PANI/CuPc/PDMS Composite Elastomer with High Dielectric Constant and Low Modulus Assisted by Electric Fields

Hu,

Chu,

Liu

et al. 2024

Polymers

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Dielectric elastomer is a kind of electronic electroactive polymer, which plays an important role in the application of soft robots and flexible electronics. In this study, an all-organic polyaniline/copper phthalocyanine/silicone rubber (PANI/CuPc/PDMS) dielectric composite with superior comprehensive properties was prepared by manipulating the arrangement of filler in a polymer matrix assisted by electric fields. Both CuPc particles and PANI particles can form network structures in the PDMS matrix by self-assembly under electric fields, which can enhance the dielectric properties of the composites at low filler content. The dielectric constant of the assembled PANI/CuPc/PDMS composites can reach up to 140 at 100 Hz when the content of CuPc and PANI particles is 4 wt% and 2.5 wt%, respectively. Moreover, the elastic modulus of the composites remains below 2 MPa, which is important for electro-deforming. The strain of assembled PANI/CuPc/PDMS three-phase composites at low electric field strength (2 kV/mm) can increase up to five times the composites with randomly dispersed particles, which makes this composite have potential application in the field of soft robots and flexible electronics.

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Section: Introductionmentioning

confidence: 99%