Nanodiamond/Polyimide High Temperature Dielectric Films for Energy Storage Applications

David H. Wang; Scott P. Fillery; Michael F. Durstock; Li Ming Dai; Richard A. Vaia; Loon Seng Tan

doi:10.4028/www.scientific.net/AMR.785-786.410

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 785-786Nanodiamond/Polyimide High Temperature Dielectric...

Nanodiamond/Polyimide High Temperature Dielectric Films for Energy Storage Applications

Abstract:

CP2 polyimide (prepd. from 6FDA and 1,3-bis (3-aminophenoxy) benzene) was blended with (1-50 wt.%) detonation nanodiamonds (DND, pristine, acetone-washed, and 4-(2,4,6-trimethylphenoxy) benzoic acid-functionalized), and the blends were evaluated as thin films for its potential utility in high-energy-density capacitors that would have stable dielectric properties over a wide temperature range (-55 to 300°C) and at frequencies up to or greater than 100 kHz. Both the dielectric storage and loss increased substantially with DND content. Surface functionalization (with the above benzoic acid derivative) significantly reduced the dielectric loss, while the use of acetone-washed DNDs had no effect on the dielectric loss. DND was also blended with CP2 via in-situ polymerization and found to have little effect on the dielectric properties.

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Periodical:

Advanced Materials Research (Volumes 785-786)

Pages:

410-416

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.785-786.410

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Online since:

September 2013

Authors:

David H. Wang, Scott P. Fillery, Michael F. Durstock, Li Ming Dai, Richard A. Vaia, Loon Seng Tan*

Keywords:

Energy Storage, Nanodiamond, Polyimide

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* - Corresponding Author

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