Suresh Tirupati Multi-walled carbon nanotubes (MWCNTs) exhibit a range of dielectric constants depending on factors such as their concentration, temperature,, structural modifications and the frequency of the applied electric field.

For example

A composite with 2.0 wt% MWCNT in a polyvinylidene fluoride (PVDF) matrix can have a dielectric constant around 10.5 at 100 Hz [1].

The dielectric constant of pristine MWCNT/PVDF composites reaches up to 1700, while oxidized MWCNT/PVDF composites achieve a maximum of 3600, depending on MWCNT concentration and functionalization [2].

References:

[1] Yu, Yating, Hang Xu, Xiaoming Wang, Lizhu Guan, Xiaorui Zhang, Zijian Wu, and Ling Weng. "Investigation of morphology and dielectric properties of PVDF composite films reinforced with MWCNT@ PDA core–shell nanorods." Journal of Materials Science: Materials in Electronics 33, no. 9 (2022): 6842-6855.

[2] Li, Qun, QingZhong Xue, X. L. Gao, and Q. B. Zheng. "Temperature dependence of the electrical properties of the carbon nanotube/polymer composites." Express Polym Lett 3, no. 12 (2009): 769-777.

I hope this information is useful for your research.

Best Regards,

Alvena Shahid

Thank you so much. Alvena Shahid