Poly (vinylidene fluoride) dielectric composites with both ionic nanoclusters and well dispersed graphene oxide
Guan, JP; Xing, CY; Wang, YY; Li, YJ; Li, JY
2017
发表期刊COMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
卷号138页码:98-105
文章类型期刊论文
摘要Nanostructured polymeric dielectric composites, based on poly (vinylidene fluoride) (PVDF), graphene oxide (GO), and an ionic liquid (IL), 1-vinyl-3-ethylimidazolium tetrafluoroborate ([VEIM] [BEd), denoted as Nano-PVDF/IL/GO, were fabricated through casting method, electron beam (EB) irradiation and microphase separation processes. Through the strategy, GO nanosheets were dispersed homogeneously in PVDF matrix and the organic nanoclusters formed by microphase separation of IL grafted PVDF (PVDFg-IL) chain segments tended to adhere onto the surface of GO nanosheets. The Nano-PVDF/IL/GO composites displayed a drastic reduction in dc conductivity compared with PVDF/GO and PVDF/IL/GO composites because of impeding the direct contact between GO nanosheets by the nanoclusters. Furthermore, the mircocapacitors between the adjacent GO nanosheets and nanoclusters contributed the increase of dielectric constant. At the same time, the dielectric loss from the current leakage of GO nanosheets was almost fully eliminated due to the strong interfacial bonding between polymer matrix and fillers which restrained the formation of conductive network. Therefore, we proposed an effective strategy for using the organic nanoclusters to modify the inorganic conductive fillers and impeding the formation of conductive network in the dielectric materials, which paves new possibility to prepare polymer nanocomposites with both high dielectric constant and low dielectric loss. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Nanostructured Dielectric Composites Ionic Liquid Graphene Oxide Nanosheet Nanoclusters Electron Beam Irradiation
DOI10.1016/j.compscitech.2016.11.012
收录类别SCI
语种英语
WOS记录号WOS:000392778500012
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27413
专题中科院上海应用物理研究所2011-2018年
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Guan, JP,Xing, CY,Wang, YY,et al. Poly (vinylidene fluoride) dielectric composites with both ionic nanoclusters and well dispersed graphene oxide[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2017,138:98-105.
APA Guan, JP,Xing, CY,Wang, YY,Li, YJ,&Li, JY.(2017).Poly (vinylidene fluoride) dielectric composites with both ionic nanoclusters and well dispersed graphene oxide.COMPOSITES SCIENCE AND TECHNOLOGY,138,98-105.
MLA Guan, JP,et al."Poly (vinylidene fluoride) dielectric composites with both ionic nanoclusters and well dispersed graphene oxide".COMPOSITES SCIENCE AND TECHNOLOGY 138(2017):98-105.
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