TY - GEN
T1 - Preparation and dielectric properties of Cu/PVDF composite films
AU - Zhai, Jian Wen
AU - Wang, Ya Jun
AU - Deng, Jian Lou
AU - Feng, Chang Gen
N1 - Publisher Copyright:
© (2014) Trans Tech Publications, Switzerland.
PY - 2014
Y1 - 2014
N2 - Nano and micro size Cu were employed separately and investigated comparatively. Different volume fraction of Cu was added into PVDF film in order to investigate the content of filler effect on the dielectric properties of polymer composites. XRD and SEM were used to analyze the crystalline phase and microstructure of the films. The results show that two sizes of Cu have the same peak features, and with the continuous increase of the content of Cu, it disperse better in PVDF. The dielectric constant (ε) of the composite containing 16 vol% micro-CCTO filler is 16 at 100 Hz and room temperature, and its dielectric loss (tanδ) is only 0.15, which is substantially better than others. Besides, for 18 vol% nano-Cu/PVDF composite tanδ is 0.25 and ε is 18 at 100 Hz. Moreover, ε and tanδ of nano-Cu/PVDF composite are both higher than those of micro-Cu/PVDF. Analysis shows that the composites with nano-Cu have higher dielectric constants, which is mainly from the interfacial polarization.
AB - Nano and micro size Cu were employed separately and investigated comparatively. Different volume fraction of Cu was added into PVDF film in order to investigate the content of filler effect on the dielectric properties of polymer composites. XRD and SEM were used to analyze the crystalline phase and microstructure of the films. The results show that two sizes of Cu have the same peak features, and with the continuous increase of the content of Cu, it disperse better in PVDF. The dielectric constant (ε) of the composite containing 16 vol% micro-CCTO filler is 16 at 100 Hz and room temperature, and its dielectric loss (tanδ) is only 0.15, which is substantially better than others. Besides, for 18 vol% nano-Cu/PVDF composite tanδ is 0.25 and ε is 18 at 100 Hz. Moreover, ε and tanδ of nano-Cu/PVDF composite are both higher than those of micro-Cu/PVDF. Analysis shows that the composites with nano-Cu have higher dielectric constants, which is mainly from the interfacial polarization.
KW - Cu particle
KW - Dielectric constant
KW - Energy storage density
KW - PVDF
UR - http://www.scopus.com/inward/record.url?scp=84920816442&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.1035.417
DO - 10.4028/www.scientific.net/AMR.1035.417
M3 - Conference contribution
AN - SCOPUS:84920816442
T3 - Advanced Materials Research
SP - 417
EP - 421
BT - Proceedings of 2014 International Conference on Material Science and Engineering
A2 - Chen, Ping
PB - Trans Tech Publications Ltd.
T2 - 2014 International Conference on Material Science and Engineering, ICMSE2014
Y2 - 8 August 2014 through 9 August 2014
ER -