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Journal of Materials Science
Erschienen in: Journal of Materials Science 8/2020

05.11.2019 | Chemical routes to materials

Fluoro-polymer-coated carbon nanotubes for improved interfacial interactions and dielectric properties in MWCNTs/PVDF composites

verfasst von: Shixin Song, Shan Xia, Yingcong Wei, Xue Lv, Shulin Sun, Quanming Li

Erschienen in: Journal of Materials Science | Ausgabe 8/2020

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Abstract

In this paper, the fluoro-polymer-coated multiwall carbon nanotubes (MWCNTs) were prepared by in situ atom transfer radical polymerization of 2-(perfluoroalkyl) ethyl methacrylate (FEMA) on the surface of MWCNTs. Scanning electron microscopy results showed that the fluoro-polymer on MWCNTs surface improved the dispersion and compatibility of MWCNTs in the poly(vinylidene fluoride) (PVDF) matrix. The PFEMA@MWCNTs/PVDF composites exhibited improved thermal stability and reduced crystallinity due to enhanced interface strength between MWCNTs and PVDF. Furthermore, nearly 100% polar phase PVDF formed after introducing high PFEMA@MWCNTs content into PVDF matrix. It was also found that PFEMA@MWCNTs-filled PVDF composites present advantages in increasing dielectric constants and decreasing loss tangents due to the restriction of interface polarization and leakage current. Based on the percolation threshold and ac conductivities, the PFEMA@MWCNTs/PVDF composites exhibit good insulation properties and are promising for high-performance dielectric composite applications.
Vorheriger Artikel Photocatalytic performance of mesoporous composites of TiO2–ZrO2 and phosphotungstic acid
Nächster Artikel Mechanical and fracture behaviour of hydroxyl functionalized h-BN nanosheets

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Metadaten
Titel
Fluoro-polymer-coated carbon nanotubes for improved interfacial interactions and dielectric properties in MWCNTs/PVDF composites
verfasst von
Shixin Song
Shan Xia
Yingcong Wei
Xue Lv
Shulin Sun
Quanming Li
Publikationsdatum
05.11.2019
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 8/2020
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-019-04161-9

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