Microwave absorption enhancement by adjusting reactant ratios and filler contents based on 1D K–MnO2@PDA and poly(vinylidene fluoride) matrix

One-dimensional K–MnO2 nanorods were prepared by a wet chemical process. Dopamine hydrochloride (PDA) layers with various thicknesses were coated and finally, the composites were filled in a poly(vinylidene fluoride) (PVDF) matrix using the hot-molding procedure. The complex permittivity and permeab...

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Bibliographic Details
Published in:RSC advances 2019-01, Vol.9 (23), p.13088-13095
Main Authors: Shu-Qing Lv, Xu, Wei, Huang, Wujisiguleng, Guo-Cheng, Lv, Wang, Guang-Sheng
Format: Article
Language:English
Subjects:
Chemistry
Complex permittivity
Composite materials
Dopamine
Fluorides
Manganese dioxide
Microwave absorbers
Microwave absorption
Molding (process)
Nanorods
Organic chemistry
Polyvinylidene fluorides
Thickness
Vinylidene fluoride
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Summary:One-dimensional K–MnO2 nanorods were prepared by a wet chemical process. Dopamine hydrochloride (PDA) layers with various thicknesses were coated and finally, the composites were filled in a poly(vinylidene fluoride) (PVDF) matrix using the hot-molding procedure. The complex permittivity and permeability of the K–MnO2@PDA/PVDF composites could be adjusted by reactant amount ratios and filler contents. The minimum reflection loss could reach −49.4 dB and an effective absorption bandwidth (
ISSN:2046-2069
DOI:10.1039/c9ra01248f