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Cited by 266

The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.

Fabrication of Stretchable Nanocomposites with High Energy Density and Low Loss from Cross-Linked PVDF Filled with Poly(dopamine) Encapsulated BaTiO3

Xie, Yunchuan, Yu, Yangyang, Feng, Yefeng, Jiang, Wanrong, Zhang, Zhicheng·2017·ACS Applied Materials & Interfaces

Abstract

(BT) nanoparticle (PDA@BT) filled composites using PVDF matrix cross-linked by the free radical initiator. The effects of both the particle encapsulation and matrix cross-linking on the mechanical and dielectric properties of the composites were carefully investigated. The results suggested that the introduction of BT particles improved permittivity of the composites to ∼30 at 100 Hz when particle contents of only 7 wt % were utilized. This was attributed to the enhanced polarization, which was induced by high permittivity ceramic particles. Compared to bare BT, PDA@BT particles could be dispersed more homogeneously in the matrix, and the catechol groups of PDA layer might form chelation with free ions present in the matrix. The latter might depress the ion conduction loss in the composites. Other results revealed that the formation of hydrogen-bonding between the PDA layer and the polymer, especially the chemical cross-linking across the matrix, resulted in increased Young' modulus by ∼25%, improved breakdown strength by ∼40%, and declined conductivity by nearly 1 order of magnitude when compared to BT filled composites. The composite films filled with PDA@BTs indicated greater energy storage capacities by nearly 190% when compared to the pristine matrix. More importantly, the excellent mechanical performance allowed the composite films to adopt uni- or biaxially stretching, a crucial feature required for the realization of high breakdown strength. This work provided a facile strategy for fabrication of flexible and stretchable dielectric composites with depressed dielectric loss and enhanced energy storage capacity at low filler loadings (<10 wt %).

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Crossref · 10.1021/acsami.6b14166

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Metadata

Authors
Xie, Y., Yu, Y., Feng, Y., Jiang, W., & Zhang, Z.
Venue
ACS Applied Materials & Interfaces
Published
2017-01-12
Volume
9
Issue
3
Pages
2995-3005
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2571546311
Cited by
266
References
19
FWCI
14.78
Type
journal article
Language
en
Open access
closed

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