Crystal Polymorphism and Enhanced Dielectric Performance of Composite Nanofibers of Poly(vinylidene fluoride) with Silver Nanoparticles
Crystal Polymorphism and Enhanced Dielectric Performance of Composite Nanofibers of Poly(vinylidene fluoride) with Silver Nanoparticles
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聚偏二氟乙烯与纳米银复合纳米纤维的晶体多晶型及其增强介电性能
DOI：
10.1002/app.38185
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发表时间：
2013-04-15
影响因子：
3
通讯作者：
Huang, Wei
中科院分区：
文献类型：
--
作者：
Shi, Naien;Duan, Juanjuan;Huang, Wei
采用静电纺丝法制备了聚偏氟乙烯（PVF 2）与纳米银粒子的复合纳米纤维。根据X射线衍射图和傅里叶变换红外（FTIR）光谱，与原始PVF 2原料和电纺纳米纤维相比，PVF 2和银的复合纤维中PVF 2的压电β-多晶型物的含量增加。差示扫描量热法（DSC）测试表明，PVF 2与银的复合材料具有比纯PVF 2纳米纤维更高的熔点和结晶温度。此外，银纳米粒子的存在大大提高了PVF 2纳米纤维的介电常数，同时保持了较低的介电损耗，这主要与复合材料的内部纤维结构有关。© 2012 Wiley Periodicals，Inc. J.应用聚合物Sci. 2013
Composite nanofibers of poly(vinylidene fluoride) (PVF2) with silver nanoparticles are fabricated by electrospinning. According to the X‐ray diffraction patterns and Fourier transform IR (FTIR) spectra, the content of piezoelectric β‐polymorph of PVF2 is enhanced in the composite fibers of PVF2 and silver as compared with the pristine PVF2 raw materials and electrospun nanofibers. The differential scanning calorimeter (DSC) measurement indicates that the composite of PVF2 and silver has higher melting point and crystallization temperature than that of pristine PVF2 nanofibers. Moreover, the existence of silver nanoparticles greatly enhances the dielectric constant of PVF2 nanofibers and keeps a low dielectric loss simultaneously, which mainly relates to the internal fibrous structure of the composite. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013