Preparation and dielectric and mechanical properties of fluorine-functionalized graphene oxide/polyimide nanocomposites

Fluorine-functionalized graphene oxide was obtained by reacting pentafluoroaniline with graphene oxide. Fluorine-functionalized graphene oxide/polyimide nanocomposites were prepared by an in-situ polymerization method using 4,4-diaminodiphenyl ether and pyromellitic dianhydride as the monomers and N...

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Bibliographic Details
Published inCarbon (New York) Vol. 176; p. 653
Main Authors Xing, Rui-guang, Zhuang, Xiao-xu, Wang, Bo, Li, Ya-nan, Zhang, Bang-wen
Format Journal Article
LanguageEnglish
Published New York Elsevier Ltd 01.05.2021
Elsevier BV
Subjects
Dielectric properties
Dimethyl acetamide
Fluorine
Graphene
Mechanical properties
Nanocomposites
Permittivity
Tensile strength
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ISSN0008-6223
1873-3891
DOI10.1016/j.carbon.2021.02.038

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Summary:Fluorine-functionalized graphene oxide was obtained by reacting pentafluoroaniline with graphene oxide. Fluorine-functionalized graphene oxide/polyimide nanocomposites were prepared by an in-situ polymerization method using 4,4-diaminodiphenyl ether and pyromellitic dianhydride as the monomers and N,N-dimethylacetamide as the dispersing solvent. The dielectric constant and mechanical properties of the nanocomposites were investigated. Results indicate that when the fluorine-functionalized graphene oxide content is increased from 0 to 2 wt %, the dielectric constant of the nanocomposite decreases from 3.61 to 2.8 and the tensile strength increases from 11.75 to 14.2 MPa.
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ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2021.02.038