title: Structure, thermal stability and electrical properties of reduced graphene/poly(vinylidene fluoride) nanocomposite films.
abstract: The reduced graphene/poly(vinylidene fluoride) nanocomposite films were prepared by the solution casting-thermal reduction process using graphene oxide (GO) and poly(vinylidene fluoride) (PVDF) resin. With the presence of reduced graphene (RG) nano sheets in the nanocomposite, the structure of PVDF is transformed from alpha to beta phase, and the beta phase fraction and its crystallinity are largely affected by the RG content. The PVDF thermal stability is improved by the RG introduction, with about 15 degrees C increase of the half-life of PVDF decomposition temperature. The RG/PVDF nanocomposites show a better electrical conductivity than that for the GO/PVDF nanocomposites. At a low RG content (0.8 wt.%), the dielectric constant of RG/PVDF nanocomposite film with a very low loss tangent is dramatically increased from about 6 to 23. The mechanisms for the thermal stability and electrical property improvements are discussed.
authors.affiliation: Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Han
authors.forename: Jingbo
authors.initials: J
authors.lastname: Fan
authors.forename: Lin
authors.initials: L
authors.lastname: Zhu
authors.forename: Chunying
authors.initials: C
authors.lastname: Min
authors.forename: Xiangqian
authors.initials: X
authors.lastname: Shen
authors.forename: Tiezheng
authors.initials: T
authors.lastname: Pan