Effect of frequency on dielectric properties of TiO2/PDMS dielectric elastomers

Abstract

Dielectric elastomeric materials are a new type of electroactive polymers that can produce large deformation under electric field stimulation and can be widely used as actuators and sensors. Among them, Dow Corning’s PDMS is the most widely studied silicone rubber-based dielectric elastomer material. Its key electrical parameters, especially the dielectric constant, affect the overall electromechanical coupling performance. So far, people’s understanding of the dielectric constant value of PDMS dielectric materials is not uniform, especially the influence of frequency on dielectric constant is very different, and few scholars analyze it from the mechanism. Based on this situation, different TiO2/PDMS dielectric elastomers were prepared firstly, and then the influence of frequency (0–105 Hz) on the dielectric properties of TiO2/PDMS dielectric materials was studied by high–low-frequency dielectric constant meter. It is found that the material has strong low frequency dependence and weak high frequency dependence. Finally, from the microscopic point of view, the mechanism of the dielectric constant of TiO2/PDMS dielectric material changing with frequency is due to the fact that material dipole steering polarizability changes with frequency.

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References

  1. Aminayi P, Abidi N (2015) Ultra-oleophobic cotton fabric prepared using molecular and nanoparticle vapor deposition methods. Surf Coat Technol 276:636–644. https://doi.org/10.1016/j.surfcoat.2015.06.005

    CAS  Article  Google Scholar 

  2. An QF, Wang KF, Jia Y (2011) Film morphology, orientation and performance of dodecyl/carboxyl functional polysiloxane on cotton substrates. Appl Surf Sci 257:4569–4574. https://doi.org/10.1016/j.apsusc.2010.12.032

    CAS  Article  Google Scholar 

  3. Cao L, Jia J, Wang Z (2008) Sensitive determination of Cd and Pb by differential pulse stripping voltammetry with in sit-u bismuth-modified zeolite doped carbon paste electrodes. Electrochim Acta 53(5):2177–2182. https://doi.org/10.1016/j.electacta.2007.09.024

    CAS  Article  Google Scholar 

  4. Gupta VK, Yola ML, Atar N, Ustundag Z, Solak AO (2013) A novel sensitive Cu(II) and Cd(II) nanosensor platform graphene oxide terminated p-aminophenyl modified glassy carbon surface. Electrochim Acta 112:541–548. https://doi.org/10.1016/j.electacta.2013.09.011

    CAS  Article  Google Scholar 

  5. Sharma AK, Arora N, Joglekar MM (2018) DC dynamic pull-in instability of a dielectric elastomer balloon: an energy-based approach. Proc R Soc A Math Phys Eng Sci 474:20170900. https://doi.org/10.1098/rspa.2017.0900

    Article  Google Scholar 

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Correspondence to Qian Liu.

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Lu, T., Liu, Q., Xin, S. et al. Effect of frequency on dielectric properties of TiO2/PDMS dielectric elastomers. Chem. Pap. 74, 2769–2773 (2020). https://doi.org/10.1007/s11696-020-01117-1

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Keywords

  • Dielectric elastomer
  • Dielectric constant
  • PDMS
  • Frequency