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Preparation and dielectric properties of sulfonated poly(aryl ether ketone)/acidified graphite nanosheet composites

Jiang, Wenlong, Liu, Yu, Wang, Jinfeng, Wang, Qitong, Zhang, Yunhe and Guan, Shaowei 2014, Preparation and dielectric properties of sulfonated poly(aryl ether ketone)/acidified graphite nanosheet composites, Journal of applied polymer science, vol. 131, no. 6, Article number : 40028, pp. 1-8, doi: 10.1002/app.40028.

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Title Preparation and dielectric properties of sulfonated poly(aryl ether ketone)/acidified graphite nanosheet composites
Author(s) Jiang, Wenlong
Liu, Yu
Wang, Jinfeng
Wang, Qitong
Zhang, Yunhe
Guan, Shaowei
Journal name Journal of applied polymer science
Volume number 131
Issue number 6
Season Article number : 40028
Start page 1
End page 8
Total pages 8
Publisher Wiley
Place of publication Hoboken, N. J.
Publication date 2014-03-15
ISSN 0021-8995
1097-4628
Keyword(s) composites
dielectric properties
electrochemistry
Summary Percolative dielectric composites of sulfonated poly(aryl ether ketone) (SPAEK) and acidified graphite nanosheets (AGSs) were fabricated by a solution method. The dielectric constant of the as-prepared composite with 4.01 vol % AGSs was found to be 330 at 1000 Hz; this was a significant increase compared to that of pure SPAEK. Through the calculation, a low percolation threshold of the AGS/SPAEK composite was confirmed at 3.18 vol % (0.0318 volume fraction) AGSs; this was attributed to the large surface area and high conductivity of the AGSs. Additionally, our percolative dielectric composites also exhibited good mechanical performances and good thermostability, with a tensile strength of 71.7 MPa, a tensile modulus of 1.91 GPa, a breaking elongation of 16.4%, and a mass loss temperature at 5% of 336°C.
Language eng
DOI 10.1002/app.40028
Field of Research 030301 Chemical Characterisation of Materials
Socio Economic Objective 860608 Rubber and Synthetic Resins
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2014, John Wiley & Sons
Persistent URL http://hdl.handle.net/10536/DRO/DU:30062881

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Sat, 03 May 2014, 09:59:40 EST by Christine Rimmer

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