Dielectric Properties of Poly(vinylidene fluoride) Composites Based on Bucky Gels of Carbon Nanotubes With Ionic Liquids

被引：33

作者：

Chen, Guang-Xin ^{[1
]}

Zhang, Shicheng ^{[1
]}

Zhou, Zheng ^{[2
]}

Li, Qifang ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Minist Educ, Key Lab Carbon Fiber & Funct Polymers, Beijing 100029, Peoples R China

[2] Beijing Univ Chem Technol, Coll Mat Sci & Engn, Beijing 100029, Peoples R China

来源：

POLYMER COMPOSITES | 2015年 / 36卷 / 01期

关键词：

POLYMER COMPOSITES; RELAXATION; ELECTROLYTE; DYNAMICS; BEHAVIOR;

D O I：

10.1002/pc.22917

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Bucky gels of carbon nanotubes were successfully prepared by grinding multi-walled carbon nanotubes (MWNTs) and ionic liquids (ILs) for several hours. A series of poly(vinylidene fluoride) (PVDF) composites with Bucky gels was obtained through simple melt compounding. The Raman spectrum showed significant interaction among the ILs, MWNTs, and PVDF. The dielectric behavior of the PVDF composites based on unmodified and IL-modified MWNTs was studied from 40 Hz to 30 MHz. The addition of ILs significantly enhanced the dielectric property of the PVDF/IL/MWNT ternary composites, which was much higher than that of the sum of PVDF/IL and PVDF/MWNT binary composites. The SEM results revealed that both MWNTs and ILs uniformly dispersed throughout the PVDF/IL/MWNT composites because of the strong interaction between them. The DSC and XRD results showed that the addition of ILs in the composites changed the crystallinity and crystal form of the PVDF. POLYM. COMPOS., 36:94-101, 2015. (c) 2014 Society of Plastics Engineers

引用

页码：94 / 101

页数：8

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