High dielectric permittivity and low dielectric loss nanocomposites based on poly(VDF-TrFE-CTFE)and graphene nanosheets

作     者：Fei Wen Zhuo Xu Weimin Xia Xiaoyong Wei Zhicheng Zhang 

作者机构：Electronic Materials Research LaboratoryKey Laboratory of the Ministry of Education&International Center for Dielectric ResearchXi’an Jiaotong UniversityXi’an 710049P.R.China Department of Applied ChemistryMOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed MatterSchool of ScienceXi’an Jiaotong UniversityXi’an710049P.R.China 

出 版 物：《Journal of Advanced Dielectrics》 (先进电介质学报（英文）)

年 卷 期：2013年第3卷第2期

页      面：33-38页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0702[理学-物理学] 

基　　金：support from the National Basic Research Program of China(973 Program)(Grant No.2009CB623306) International Science&Technology Cooperation Program of China(Grant No.2010DFR50480) National Nature Science Foundation of China-NSAF(Grant Nos.10976022,50872107 and 50903065) Program for NewCentury Excellent Talents in University, and FundamentalResearch Funds for the Central Universities 

主　　题：Dielectric graphene nanosheets nanocomposites ferroelectric elastomer 

摘      要：In this work,nanocomposites(poly(vinylidenefluoride
trifluoroethylene
chlorotrifluoroethylene)/Graphene nanosheets)(P(VDF-TrFE-CTFE)/GNS)were fabricated via solution cast *** were covalently functionalized with KH550 to improve their interfacial interactions with the terpolymer matrix P(VDF-TrFE-CTFE).Compared to neat terpolymer,significantly improved dielectric permittivity and low loss were observed for the *** instance,at 1 kHz the P(VDF-TrFE-CTFE)/GNS composites with 4%GNS possessed a dielectric permittivity of 144,over 14 times larger than that of neat terpolymer,while the loss was only *** findings represent an effective route to design potential dielectric polymer films for high-charge storage capacitors.